The mod sort of easys the issue, but having more clearance around the pins just lets larger pieces of gravel/sand,dirt in to still jam the pins in. This needs a re think by Arrma on this design.
That may be true There are other designs out there that have pins and holes that don't have this problem because they have more clearance. At least with my test which was pretty extrem as far as dust and sand goes, with the enlarged holes, the body removed fairly easily. Still got a little bit stuck but not bad. I really can't imagine anybody bashing in a more dusty environment than I did in that video. The dust is so thick that I literally lost sight of the car multiple times and it was like 15 ft away from me :-)
@@make4all2000 I don't think it would matter. The type of particulate that's going to jam up that close of a fit is going to get in pretty much no matter what you do. I bash in The same kind of stuff that you saw in that video all the time and I assure you it gets everywhere including inside sealed bearings.
This design worked ok on the Fireteam with the wheels way out from the body & the pins. Problem with the Mojave having the wheels inside the body & in direct line with the pins, debris off the wheels is driven in pretty hard directly at the pins. Hope things are worked out ok as the Mojave is a nice truck indeed.
The fire team design is a little bit different. The pins are tapered and go into more shallow holes which makes it less likely for them to get jammed up. I'm not certain that where the debris is coming from is even much of a factor. When you're bashing in fine sand or dust like in the video it gets literally everywhere. In my opinion the tight tolerance is the main problem because it allows very fine dust to get in between the two and then basically gall the plastic together from friction. Increasing the space will allow larger pieces of debris in there but I don't think those larger pieces of debris will actually cause the pins to seize in the holes. At least in my testing it's been pretty good. They still get a little stuck but they're relatively much easier to remove.
Great video! I'm amazed that this is really the only issue anyone's finding/complaining about. Of all the problems we could be having with these new rigs, for example maybe the center diff design could be flawed, for this to be the only real issue is great! The truck is awesome and this issue seems to have sorted itself out with mine on its own. I can't find anything to dislike about this rig!
Yeah I think certain people are upset just because it does pose a potential safety issue but between an easy mod and the fact that it does seem to self clearance I think it'll be fine :-) Thanks for watching!
I’m still excited for mine to come and yours working it out on its own is giving me hope that the issue won’t be as bad as it seems. I am going to rip it in less dusty areas first and hopefully it does some sort of breaking in. Might just need a very light breakin to allow the pins to settle without the seizing issue. How was it out of the box before running it, was the removal difficult then or did it seem tight?
@gueychacho really don't think you're going to have anything to worry about. I've heard multiple people say that there is are wearing in, enlarging the holes a little bit pretty much to care of my problem and one guy even said he just greased the pegs and it's working fine so there are definitely options :-)
@@Reekohswahvay first run was actually VERY difficult. My dad had to grab the bumpers and I grabbed the roof roll bars and we pulled pretty hard. Now it's easier for sure though. You might want to bring a hammer and screwdriver of some sort the first run to knock the pins out through the bottom. But after that, you can probably just use gravity and hold by the roll cage and kinda drop/pull motion until it pops off. I ran today and it was a little harder than the last couple times, but still very manageable. Shouldn't run you away from the truck though! Thing is an absolute blast
You're not the first to discover this flaw, and everyone knows you won't be the last. And, in truth, is actually TWO flaws - the second flaw is the poorly-placed on/off switch. As you, and Earl Morehead, have both pointed out, because of where the power switch is, if someone is unable to remove the body, they are also unable to turn off the vehicle. A SERIOUS "FAIL" on Arrma’s/Horizon Hobby's part...and, one that, in my opinion, should lead to all sales being stopped, and a recall issued. RTR means "ready to run", NOT "modifications REQUIRED in order to safely run". If a body is stuck, and a Lipo fire occurs, this would a SERIOUS problem.
I don't think the on-off switch is poorly placed as long as you can take the body off. Plenty of RC cars require taking the body off in order to access the switch. As far as what Horizon should do I'm probably not going to get into that because I think Earl has that covered. I figured enlarging the holes would mostly take care of the issue and based on my testing it seems to be pretty effective. I've heard multiple people say that even without doing that they loosen up pretty quickly. Of course that doesn't help if you don't enlarge the holes and you have a lipo fire on the second pack. Thanks for watching :-)
Earl really seemed upset about this. And I'm not sure why. It's not that big of a deal. After about 3-4 runs it stopped being so tight. I wouldn't even say modification is required, just a couple tries and it's absolutely fine.
@Krapper515 I could understand being upsetting. Spending a bunch of money on something that has an obvious design flaw like that especially one that can cause real problems is pretty annoying. I don't think I would personally go to the level that he did but it still shouldn't happen.
@@DoRC Didn't mean the switch is, in general, poorly-placed. Was referring to it being poorly-placed in connection to the body pin problem. In other words, if there was no body pin problem, then the power switch is perfectly placed.
@@DoRC In complete agreement on the "it shouldn't happen" part. Sometimes, Earl definitely goes 'overboard' in his negativity...but, I do understand his frustration in this matter.
Dirt protection may be good, but the mudguards can’t do much about sand. After a run in the sand pit in my local park, my chassis was loaded with sand lol
@runwei_1999 Yeah there's really nothing you can do to stop sand from getting into your car. It even gets into places that seem like they would be sealed off.
I can understand him being upset to some degree. It does represent a potential safety issue if you have a catastrophic failure and can't get the body off. Something that seems so obvious feels like it never should happen. That being said small changes between validation samples of a product and the production run can sometimes result in these sorts of issues. It doesn't take much of a tolerance difference to go from having just enough clearance for this not to be a major problem to having not enough clearance and for it to become a major problem.
I watched a video yesterday of someone running in the grass and couldn't believe that even with the interior body shell how much grass was collected inside the chassis. So they basically just added insulation for the motor and ESC without the added benefit of keeping them clean lol.
In my experience it helps a bit with keeping it clean but they did have to leave it somewhat open for cooling. Probably would have been better just to leave it all open but I'm sure they have their reasons.
@@idjc2621 Yeah I don't think there's anything short of actually completely sealing the chassis that is going to prevent all debris from getting in. I've even found that those hair nets are not 100% effective.
Maybe though unless you made it pretty large I think you'll still have the same problem without enlarging the hole. The issue right now is that they're so tight that very fine dust gets in there and kind of galls the plastic causing it to jam up on itself. Increasing that gap means that larger debris can get in there but I don't think larger debris going actually prevent you from removing the body. Just making a flat spot on it might not prevent that plastic galling from happening.
Ben falling in love with this car. But if I have to struggle every time I take the body on and off, then perhaps I'll just skip it. :( Damn.... Is it like this everytime for everyone?
Ehh it's not that big of a deal. After a little while it tends to free up and even when it does get stuck you can still remove it by just giving it a good solid yank. I would call it more of an inconvenience than an actual problem.
I really don't think that'll work. The type of fine particulate that is causing the pins to jam is going to get everywhere no matter what you do. It's not really a matter of just trying to block off the top It's going to get in there anyway. In this case short of figuring out some way to actually hermetically seal that system The only option that I can think of is to increase the clearance between the pin and hole.
Could another option be to sock up the pins with foam boots glued on the upper end to prevent the boot from scooting upwards while body shell actuates? In theory, it should keep dust away from the inner side hole. I’ll try it out once the unit arrives.
I'm not sure that would matter. Dust is going to get in from underneath of from above even if you do try to seal it off. The size of particular that's going to be a problem to these pins is small enough that unless you actually completely sealed the whole thing off it's still going to get in there. It's pretty much a non-issue though. If you want to drill them out drill them out otherwise most people have found that after a few packs they tend to loosen up on their own a little bit.
I'm going to guess that the tolerance wasn't so tight on their test samples. Sometimes minor changes between small batch validation and full scale production can have some pretty annoying consequences. I bet this is one of those.
Yeah it'll be interesting to see what their reaction is. I mean technically it could be a safety issue so they might take drastic measures but then again they might just ignore it. Not sure. I'm happy with mine and drilling the holes seems to have alleviated the problem so no matter what I'll be keeping it :-)
Well $130 really isn't nothing and to be honest with you I prefer the 4S Mojave. Don't get me wrong the 6s Mojave is great but it's also huge and very heavy. There's something to be said for a smaller lighter car especially if the areas in which you bash aren't that large. That being said it really is personal preference and they're both really good RCs!
It actually handles surprisingly well normally. I was mostly focused on trying to get it as dirty as possible and wasn't really trying to keep it up right. Generally within the limitations of it being a desert truck It's pretty stable and most of the time will land on its wheels if it does roll over.
Yeah it'll be interesting to see what they do. It could technically be a safety issue if someone experienced a catastrophic failure and couldn't get the body off so it's possible they will take drastic measures on it but we'll see :-)
@@DoRC yeah, sometimes sh*t hits the fan and you gotta be fast to avoid disaster ... and a body on the car that tight might be a real issue. Widening the holes seems to be the way to go 😂
@Lod3runn3r tape would probably prevent dust from getting in from underneath until the tape gets ripped off of course. Even that though isn't going to stop dust from getting into the holes. It's still going to get in through the top and I'm pretty sure that o-rings aren't going to stop that either. The body's going to move around quite a bit during bashing and debris is still going to get in there. I really think the best solution is just to enlarge the holes. There's plenty of plastic around them and enlarging them a bit really won't affect the functionality of them.
Yeah I'd hate to see someone have a lipo fire or something and not be able to get the body off. There's a good chance that overtime it'll just free up on its own and a couple people have actually reported that but this only takes a couple of minutes and so I think it's definitely worth doing
Great job pushing when you know your channel is hot. Won't be long before you double your subs. Awesome content btw. Ive really enjoyed watching things take off for you!
Thanks although I can't take credit for doing this on purpose. There's just been a lot of cars that have come out lately and I keep finding things I need to make videos on :-) to be perfectly honest with you I'm exhausted!
@@gainsrc Thanks man. Yeah this channel is just for fun and giving back to / interacting with the community. It's not even monetized and I never plan to monetize it. It definitely is fun to watch it grow though!
Seems like something Arrma should have taken care of from the factory. I'm not sure if this fix is a true fix. Seems to me now larger debris will continue to get stuck.
It's possible but at least in this testing it worked fine. I think the difference between having really close tolerances and having a little bit more room is that even larger debris can sort of roll out as you remove the pin. This is far from the first vehicle that has a pin in a hole. There's usually just more clearance. I think that the testing I did was pretty much worst case scenario for dust and fine sand so if it was going to not work I think it wouldn't have worked there. That being said it's just one man's experience and maybe yours will be different :-)
O rings if worried about being a funnel , after drilling , to guys prefer Traxxas you can't perform same levels speed bashing as arrmas overall , so for half the price we've willing to do stuff like this . Money no issue or skills are intermediate sure go with Traxxas 😂
@@paulclancy2404 I don't think o rings will work. When you're bashing in really fine sand and dust nothing short of hermetically sealing something is going to keep the dust out. It literally gets everywhere.
Now that this has occurred a 2nd time, I'm staying away. I city bash, which means road dirt, sand, grass, and lots of other stuff gets in my rig. The last thing i want to do is need to mod a rig before even using it. Thanks for the video.
Yeah It is a little annoying and I could definitely see how it would potentially result in a real problem if someone has a battery fire or something like that and can't get the lid off but at least in my testing the solution seems pretty straightforward.
It breaks in! Mine was really tight for the first run or two, which I had help just pulling (my dad grabbed the front and rear bumper, and I grabbed the roll cage and we pulled, and it came off). After that, it's actually easy now. No issues about 6-8 packs through! 👍
@Krapper515 That's good to hear. I still think enlarging the holes is a good thing to do. If you have a catastrophic failure in those first couple packs it's not going to be a good thing in I don't really see any downside to slightly enlarging the holes.
@@DoRC For sure. I don't believe catastrophic failure is very likely though, especially not on a brand new rig. As long as we take care of our lipos 😅👍
just got mine couple weeks ago did you have any problems with one of the wheels wobbling? also I'm using a 4s battery 7200 mah but after a 5 minute run the car would shut off probably from over heating did you counter these two problems?
I didn't have any problems with my tires but sometimes they do get glued on poorly from the factory. If it's bad enough that it bothers you And you verified that it's not a problem with the bearings or something like that you can contact Horizon. They'll take care of you. Never had any issues with overheating. The ESC has a temperature sensor in it but the motor does not so if there was an overheating problem it was with the ESC. Are you certain the battery was fully charged when you used it?
@@DoRC for the tires I swap the left to the right and problem solve LOL, yes both my 4s batteries are fully charged (using a gen aces IMARS D300) when I got home to check the batteries say it still have 55% charge on them so I'm not sure why it kept shutting down
@@DoRC I was reading the forums people just upgraded their heat sink to a Powerhobby Aluminum Heat Sink with Twin Turbo High Speed Fans and it fix the problem I'll give that a try. Also keep up with the content!! enjoying these vids!!
I don't think that would work. The tolerances are so tight that dust gets in there and sort of grinds The plastic a little bit almost galling it together. So far enlarging the holes has prevented that from happening. They still don't fall apart after bashing in deep sand and dust but they also aren't impossible to take a part anymore.
The difference isn't so much the location of the pins but the design itself. The fire team has tapered pins with shallow mating holes. That pretty much eliminates the possibility of any sort of jamming up.
Hi DoRC guy, I'm thinking of downsizing my RC fleet I have the Rival MT10 and Arrma Big Rock 3S BLX they're both great but I might think of selling them. Then I might get this Mojave 4S what do you reckon? And how does the Mojave compare to my 2 trucks I know it's bigger.
Whereas the Mojave is a really fun truck I'm not sure It really directly compares to what you currently have. What you have right now are two monster truck style bashers and this is more of a short course truck / desert truck. It's not really that well suited for stunts. It's more of an off-road on the ground ripper. If you enjoy jumps and backflips and whatnot you might want to consider the outcast 4S as opposed to the Mojave 4S.
@@DoRCThanks for the input, I used to have the Losi Lasernut it was great but sold it decided to keep the Big Rock and Rival MT10 instead. So I just might these 2 instead, I'm not really a basher driver I just speed runs and occasional jumps I look after my trucks not drive like that Kevin Talbot bloke who heavily bashes Arrma trucks until it breaks then drive them even more bashing until completely dead undriveable.
It's probably more likely that the tolerances were different on their validation samples. The validation samples probably had issues with the body's getting slightly stuck but not so much that it was actually a problem. The tighter tolerances caused very fine particulate to essentially gall the plastic and seize it up.
I don’t think it’s all the dirt I think it has to do with the tight tolerance an when you roll it or land upside down you really smashing the pins into the hole that why it gets stuck if anything I think the dirt would let the pins be loose but after a few runs it wears right in an is as easy as butter since you did this I will NOT do just to see if what you did was actually necessary or just being impatient lol
Maybe though I have run this not in sand like that and the lid doesn't get stuck on it. For my experience the more dusty the terrain the worse it gets stuck on. And yes they definitely will loosen up over time but that's not going to help someone who has a lipo fire the second time they take it out and can't take the body off. Not saying it's super likely to happen but I think it's worth the extra couple of minutes to drill the holes out for peace of mind.
I think having the body locked onto the chassis especially if you had something like an ESC fire would be a big deal. Fortunately it seems to be a pretty straightforward fix and I've even had other people tell me that after several packs the pins themselves tend to wear in and don't stick as much. I'm just glad to be able to help where I can :-) Thanks for watching!
Wait. Instead of demanding Arrma recall, buy back, and totally redesign the truck, you just figured out a simple 1 minute fix?? I appreciate a positive, can do attitude much more than whining dramatics. I'll wait and see if mine wears in before doing any drilling. If you wanna avoid all risk i guess you'd stay inside wrapped in bubble wrap all day.
Yeah seems like a pretty simple solution and there's plenty of plastic around those holes so I don't think you're going to be weakening the structure. It's not great that the problem exists and it is possible that this solution won't work for everyone but seems to work well for me certainly doesn't take long to implement to find out.
It was actually a comment somebody made on a Facebook group about his video that inspired me to make mine. I had the same problem with my body but since It's been a really long time since I've had an ESC or lipo fire The potential consequences of not being able to get the body off didn't really occur to me. Once I realized that I realized that both the mod and the video were worth doing. Plus I like to provide a solution with a problem not just the problem :-) Thanks for watching!
You mean the mountain out of a mole hill video? New designs have issues, if this is the worst one on the truck then I'm comfortable giving them my money.
@boduke9428 to be fair I can understand being upset. Spending a bunch of money on something just for it to have such an obvious and potentially even dangerous issue is fairly frustrating. I guess I'm so used to every vehicle having some problem or another that having to enlarge a couple of holes just doesn't really bother me but again I can Why it would be upsetting.
Yeah it's not the best design but drilling the holes out pretty much takes care of the problem. In super dusty conditions the body will still get a little bit stuck but it's not going to prevent you from removing it
The mod sort of easys the issue, but having more clearance around the pins just lets larger pieces of gravel/sand,dirt in to still jam the pins in. This needs a re think by Arrma on this design.
That may be true There are other designs out there that have pins and holes that don't have this problem because they have more clearance. At least with my test which was pretty extrem as far as dust and sand goes, with the enlarged holes, the body removed fairly easily. Still got a little bit stuck but not bad. I really can't imagine anybody bashing in a more dusty environment than I did in that video. The dust is so thick that I literally lost sight of the car multiple times and it was like 15 ft away from me :-)
@@DoRC Hello! but isn't it a good idea to plug those holes on the outside of the chassis with some pieces of sticker or some short rubber plugs?
@@make4all2000 I don't think it would matter. The type of particulate that's going to jam up that close of a fit is going to get in pretty much no matter what you do. I bash in The same kind of stuff that you saw in that video all the time and I assure you it gets everywhere including inside sealed bearings.
This design worked ok on the Fireteam with the wheels way out from the body & the pins. Problem with the Mojave having the wheels inside the body & in direct line with the pins, debris off the wheels is driven in pretty hard directly at the pins. Hope things are worked out ok as the Mojave is a nice truck indeed.
The fire team design is a little bit different. The pins are tapered and go into more shallow holes which makes it less likely for them to get jammed up. I'm not certain that where the debris is coming from is even much of a factor. When you're bashing in fine sand or dust like in the video it gets literally everywhere. In my opinion the tight tolerance is the main problem because it allows very fine dust to get in between the two and then basically gall the plastic together from friction. Increasing the space will allow larger pieces of debris in there but I don't think those larger pieces of debris will actually cause the pins to seize in the holes. At least in my testing it's been pretty good. They still get a little stuck but they're relatively much easier to remove.
Honestly , arrma should of went clipless with all their new revision cars .
That would be nice though they probably still would have gone with this basic design since Those pins are designed to support the middle of the body.
Great video! I'm amazed that this is really the only issue anyone's finding/complaining about. Of all the problems we could be having with these new rigs, for example maybe the center diff design could be flawed, for this to be the only real issue is great! The truck is awesome and this issue seems to have sorted itself out with mine on its own. I can't find anything to dislike about this rig!
Yeah I think certain people are upset just because it does pose a potential safety issue but between an easy mod and the fact that it does seem to self clearance I think it'll be fine :-) Thanks for watching!
@@DoRC 100% 🙂👍
I’m still excited for mine to come and yours working it out on its own is giving me hope that the issue won’t be as bad as it seems. I am going to rip it in less dusty areas first and hopefully it does some sort of breaking in. Might just need a very light breakin to allow the pins to settle without the seizing issue. How was it out of the box before running it, was the removal difficult then or did it seem tight?
@gueychacho really don't think you're going to have anything to worry about. I've heard multiple people say that there is are wearing in, enlarging the holes a little bit pretty much to care of my problem and one guy even said he just greased the pegs and it's working fine so there are definitely options :-)
@@Reekohswahvay first run was actually VERY difficult. My dad had to grab the bumpers and I grabbed the roof roll bars and we pulled pretty hard. Now it's easier for sure though. You might want to bring a hammer and screwdriver of some sort the first run to knock the pins out through the bottom. But after that, you can probably just use gravity and hold by the roll cage and kinda drop/pull motion until it pops off. I ran today and it was a little harder than the last couple times, but still very manageable. Shouldn't run you away from the truck though! Thing is an absolute blast
You're not the first to discover this flaw, and everyone knows you won't be the last. And, in truth, is actually TWO flaws - the second flaw is the poorly-placed on/off switch. As you, and Earl Morehead, have both pointed out, because of where the power switch is, if someone is unable to remove the body, they are also unable to turn off the vehicle.
A SERIOUS "FAIL" on Arrma’s/Horizon Hobby's part...and, one that, in my opinion, should lead to all sales being stopped, and a recall issued. RTR means "ready to run", NOT "modifications REQUIRED in order to safely run". If a body is stuck, and a Lipo fire occurs, this would a SERIOUS problem.
I don't think the on-off switch is poorly placed as long as you can take the body off. Plenty of RC cars require taking the body off in order to access the switch. As far as what Horizon should do I'm probably not going to get into that because I think Earl has that covered.
I figured enlarging the holes would mostly take care of the issue and based on my testing it seems to be pretty effective.
I've heard multiple people say that even without doing that they loosen up pretty quickly. Of course that doesn't help if you don't enlarge the holes and you have a lipo fire on the second pack. Thanks for watching :-)
Earl really seemed upset about this. And I'm not sure why. It's not that big of a deal. After about 3-4 runs it stopped being so tight. I wouldn't even say modification is required, just a couple tries and it's absolutely fine.
@Krapper515 I could understand being upsetting. Spending a bunch of money on something that has an obvious design flaw like that especially one that can cause real problems is pretty annoying. I don't think I would personally go to the level that he did but it still shouldn't happen.
@@DoRC Didn't mean the switch is, in general, poorly-placed. Was referring to it being poorly-placed in connection to the body pin problem. In other words, if there was no body pin problem, then the power switch is perfectly placed.
@@DoRC In complete agreement on the "it shouldn't happen" part. Sometimes, Earl definitely goes 'overboard' in his negativity...but, I do understand his frustration in this matter.
Thats actually crazy how good those mudguards protects dirt getting into it. They should've done the same thing on senton
Yeah it's not perfect but it does work pretty well.
Dirt protection may be good, but the mudguards can’t do much about sand. After a run in the sand pit in my local park, my chassis was loaded with sand lol
@runwei_1999 Yeah there's really nothing you can do to stop sand from getting into your car. It even gets into places that seem like they would be sealed off.
Great video man earl Moorhead was so mad about this problem definitely will help people out watching this video
I can understand him being upset to some degree. It does represent a potential safety issue if you have a catastrophic failure and can't get the body off. Something that seems so obvious feels like it never should happen. That being said small changes between validation samples of a product and the production run can sometimes result in these sorts of issues. It doesn't take much of a tolerance difference to go from having just enough clearance for this not to be a major problem to having not enough clearance and for it to become a major problem.
@DoRC true that bro u should work for horizon lol
Yeah Earl was PISSED and it's such a minor issue 😅. Mine actually got better after about 4-6 runs and it's not difficult to get off anymore!
Nah I'm happy on the outside :-)
have to do this tonight.. goin to a dusty area tomorrow.. be the second time driving the mojave..
Yeah I'd recommend it. Others have said that after a few packs they'll loosen up on their own though.
I watched a video yesterday of someone running in the grass and couldn't believe that even with the interior body shell how much grass was collected inside the chassis. So they basically just added insulation for the motor and ESC without the added benefit of keeping them clean lol.
In my experience it helps a bit with keeping it clean but they did have to leave it somewhat open for cooling. Probably would have been better just to leave it all open but I'm sure they have their reasons.
I watched that one…I think the grass was longer and thicker than it appeared of screen. SCT always gets some debris honestly.
@@idjc2621 Yeah I don't think there's anything short of actually completely sealing the chassis that is going to prevent all debris from getting in. I've even found that those hair nets are not 100% effective.
I Think a flat on the pin might also work leave a nice gap for dirt
Maybe though unless you made it pretty large I think you'll still have the same problem without enlarging the hole. The issue right now is that they're so tight that very fine dust gets in there and kind of galls the plastic causing it to jam up on itself. Increasing that gap means that larger debris can get in there but I don't think larger debris going actually prevent you from removing the body. Just making a flat spot on it might not prevent that plastic galling from happening.
Such an Arrma thing. Haha. Man i didn't realize i wanted one of these untill i started seeing your videos. Now.......
This isn't normally my kind of basher but I think I might be keeping this one for a while. It's pretty fun!
Excellent simple, easy fix! Thank you!
Yeah seems to work pretty well. Thanks for watching!
Ben falling in love with this car. But if I have to struggle every time I take the body on and off, then perhaps I'll just skip it. :( Damn.... Is it like this everytime for everyone?
Ehh it's not that big of a deal. After a little while it tends to free up and even when it does get stuck you can still remove it by just giving it a good solid yank. I would call it more of an inconvenience than an actual problem.
I was thinking you could smash some foam around the pin
I really don't think that'll work. The type of fine particulate that is causing the pins to jam is going to get everywhere no matter what you do. It's not really a matter of just trying to block off the top It's going to get in there anyway. In this case short of figuring out some way to actually hermetically seal that system The only option that I can think of is to increase the clearance between the pin and hole.
Could another option be to sock up the pins with foam boots glued on the upper end to prevent the boot from scooting upwards while body shell actuates? In theory, it should keep dust away from the inner side hole.
I’ll try it out once the unit arrives.
I'm not sure that would matter. Dust is going to get in from underneath of from above even if you do try to seal it off. The size of particular that's going to be a problem to these pins is small enough that unless you actually completely sealed the whole thing off it's still going to get in there. It's pretty much a non-issue though. If you want to drill them out drill them out otherwise most people have found that after a few packs they tend to loosen up on their own a little bit.
curious why they did not think of this before they put it out.
I'm going to guess that the tolerance wasn't so tight on their test samples. Sometimes minor changes between small batch validation and full scale production can have some pretty annoying consequences. I bet this is one of those.
I think ill wait to see what they do before getting one
Yeah it'll be interesting to see what their reaction is. I mean technically it could be a safety issue so they might take drastic measures but then again they might just ignore it. Not sure. I'm happy with mine and drilling the holes seems to have alleviated the problem so no matter what I'll be keeping it :-)
@@DoRC Yea Earl said if you have a lipo fire !!
@@Paul0088 Yeah not being able to get the body off during a lipo fire might not be great.
Thanks for the tip!!! I've sub'd to your channel. Looking forward to future videos.
Awesome thanks for watching and thanks for the sub!
Great video - What Smc battery are you using/fits the Mojave?
I think I was using an SMC 5000 mAh but I can't quite remember.
I think the biggest problem for this rig is the price. That's really close to 6s price point...and a better truck!
Well $130 really isn't nothing and to be honest with you I prefer the 4S Mojave. Don't get me wrong the 6s Mojave is great but it's also huge and very heavy. There's something to be said for a smaller lighter car especially if the areas in which you bash aren't that large.
That being said it really is personal preference and they're both really good RCs!
“Plenty of meat to accommodate that larger hole!” 😂
You’re making this too easy. 😂
:)
It flipped over a lot when you bashed it, didn’t look like it handles that well ?
It actually handles surprisingly well normally. I was mostly focused on trying to get it as dirty as possible and wasn't really trying to keep it up right. Generally within the limitations of it being a desert truck It's pretty stable and most of the time will land on its wheels if it does roll over.
Great information and nice solution to that problem. Hope they´ll widen those holes. Keep up the good work 🤗🙏🤜🤛🤟
Yeah it'll be interesting to see what they do. It could technically be a safety issue if someone experienced a catastrophic failure and couldn't get the body off so it's possible they will take drastic measures on it but we'll see :-)
@@DoRC yeah, sometimes sh*t hits the fan and you gotta be fast to avoid disaster ... and a body on the car that tight might be a real issue. Widening the holes seems to be the way to go 😂
@@DoRC also, maybe one could put some tape underneath the holes to prevent stuff getting in there 🤔
@Lod3runn3r tape would probably prevent dust from getting in from underneath until the tape gets ripped off of course. Even that though isn't going to stop dust from getting into the holes. It's still going to get in through the top and I'm pretty sure that o-rings aren't going to stop that either. The body's going to move around quite a bit during bashing and debris is still going to get in there. I really think the best solution is just to enlarge the holes. There's plenty of plastic around them and enlarging them a bit really won't affect the functionality of them.
@@DoRC yeah, you're right about that. There's always stuff getting in there i guess 🤔
OK I subscribed Lol....good vid, not sure if I'll get a 4S Mojave but hopefully that helps some people.
Yeah I'd hate to see someone have a lipo fire or something and not be able to get the body off. There's a good chance that overtime it'll just free up on its own and a couple people have actually reported that but this only takes a couple of minutes and so I think it's definitely worth doing
Great job pushing when you know your channel is hot. Won't be long before you double your subs. Awesome content btw. Ive really enjoyed watching things take off for you!
Thanks although I can't take credit for doing this on purpose. There's just been a lot of cars that have come out lately and I keep finding things I need to make videos on :-) to be perfectly honest with you I'm exhausted!
@@DoRC I know that feeling well. Part time youtube+day job+Life can get crazy schedule wise. Keep building it Im excited for you.
@@gainsrc Thanks man. Yeah this channel is just for fun and giving back to / interacting with the community. It's not even monetized and I never plan to monetize it. It definitely is fun to watch it grow though!
Seems like something Arrma should have taken care of from the factory. I'm not sure if this fix is a true fix. Seems to me now larger debris will continue to get stuck.
It's possible but at least in this testing it worked fine. I think the difference between having really close tolerances and having a little bit more room is that even larger debris can sort of roll out as you remove the pin. This is far from the first vehicle that has a pin in a hole. There's usually just more clearance.
I think that the testing I did was pretty much worst case scenario for dust and fine sand so if it was going to not work I think it wouldn't have worked there. That being said it's just one man's experience and maybe yours will be different :-)
O rings if worried about being a funnel , after drilling , to guys prefer Traxxas you can't perform same levels speed bashing as arrmas overall , so for half the price we've willing to do stuff like this . Money no issue or skills are intermediate sure go with Traxxas 😂
@@paulclancy2404 what are you talking about ? This is why the internet is terrible
@@paulclancy2404 I don't think o rings will work. When you're bashing in really fine sand and dust nothing short of hermetically sealing something is going to keep the dust out. It literally gets everywhere.
@@RoostedFilmsjust a inside joke for rc fans , If it has wheels I'm a fan
Now that this has occurred a 2nd time, I'm staying away. I city bash, which means road dirt, sand, grass, and lots of other stuff gets in my rig. The last thing i want to do is need to mod a rig before even using it. Thanks for the video.
Yeah It is a little annoying and I could definitely see how it would potentially result in a real problem if someone has a battery fire or something like that and can't get the lid off but at least in my testing the solution seems pretty straightforward.
It breaks in! Mine was really tight for the first run or two, which I had help just pulling (my dad grabbed the front and rear bumper, and I grabbed the roll cage and we pulled, and it came off). After that, it's actually easy now. No issues about 6-8 packs through! 👍
@Krapper515 That's good to hear. I still think enlarging the holes is a good thing to do. If you have a catastrophic failure in those first couple packs it's not going to be a good thing in I don't really see any downside to slightly enlarging the holes.
@@DoRC For sure. I don't believe catastrophic failure is very likely though, especially not on a brand new rig. As long as we take care of our lipos 😅👍
easy peasy, thanks for posting!
Yeah seems to be a quick and easy solution to a problem that probably shouldn't exist. Thanks for watching!
just got mine couple weeks ago did you have any problems with one of the wheels wobbling? also I'm using a 4s battery 7200 mah but after a 5 minute run the car would shut off probably from over heating did you counter these two problems?
I didn't have any problems with my tires but sometimes they do get glued on poorly from the factory. If it's bad enough that it bothers you And you verified that it's not a problem with the bearings or something like that you can contact Horizon. They'll take care of you.
Never had any issues with overheating. The ESC has a temperature sensor in it but the motor does not so if there was an overheating problem it was with the ESC. Are you certain the battery was fully charged when you used it?
@@DoRC for the tires I swap the left to the right and problem solve LOL,
yes both my 4s batteries are fully charged (using a gen aces IMARS D300) when I got home to check the batteries say it still have 55% charge on them so I'm not sure why it kept shutting down
@@DoRC I was reading the forums people just upgraded their heat sink to a Powerhobby Aluminum Heat Sink with Twin Turbo High Speed Fans and it fix the problem I'll give that a try. Also keep up with the content!! enjoying these vids!!
@@nezukokamado8828 more cooling is always better! Thanks for watching :-)
Spray silicone in the holes and on the pegs🤷🏾♂️
I don't think that would work. The tolerances are so tight that dust gets in there and sort of grinds The plastic a little bit almost galling it together. So far enlarging the holes has prevented that from happening. They still don't fall apart after bashing in deep sand and dust but they also aren't impossible to take a part anymore.
This also happens with the Gorgon
Interesting!
They (arrma) should of stuck w/ fireteam pins! Instead of reversing it & putting holes in chasis & pins in body!
The difference isn't so much the location of the pins but the design itself. The fire team has tapered pins with shallow mating holes. That pretty much eliminates the possibility of any sort of jamming up.
Hi DoRC guy, I'm thinking of downsizing my RC fleet I have the Rival MT10 and Arrma Big Rock 3S BLX they're both great but I might think of selling them. Then I might get this Mojave 4S what do you reckon? And how does the Mojave compare to my 2 trucks I know it's bigger.
Whereas the Mojave is a really fun truck I'm not sure It really directly compares to what you currently have. What you have right now are two monster truck style bashers and this is more of a short course truck / desert truck. It's not really that well suited for stunts. It's more of an off-road on the ground ripper. If you enjoy jumps and backflips and whatnot you might want to consider the outcast 4S as opposed to the Mojave 4S.
@@DoRCThanks for the input, I used to have the Losi Lasernut it was great but sold it decided to keep the Big Rock and Rival MT10 instead. So I just might these 2 instead, I'm not really a basher driver I just speed runs and occasional jumps I look after my trucks not drive like that Kevin Talbot bloke who heavily bashes Arrma trucks until it breaks then drive them even more bashing until completely dead undriveable.
Ahh good idea. Such a simple fix. Thanks!
Yeah it would be nice if we didn't have to do it but at least it's not time-consuming or costly Thanks for watching!
Vid Searches for Mojave 4s on fire are trending 😂
Lol:)
Well this proves that Armma's R&D did not run or bash this in a dusty dirty environment NOT good !!!!!
It's probably more likely that the tolerances were different on their validation samples. The validation samples probably had issues with the body's getting slightly stuck but not so much that it was actually a problem. The tighter tolerances caused very fine particulate to essentially gall the plastic and seize it up.
I don’t think it’s all the dirt I think it has to do with the tight tolerance an when you roll it or land upside down you really smashing the pins into the hole that why it gets stuck if anything I think the dirt would let the pins be loose but after a few runs it wears right in an is as easy as butter since you did this I will NOT do just to see if what you did was actually necessary or just being impatient lol
Maybe though I have run this not in sand like that and the lid doesn't get stuck on it. For my experience the more dusty the terrain the worse it gets stuck on.
And yes they definitely will loosen up over time but that's not going to help someone who has a lipo fire the second time they take it out and can't take the body off. Not saying it's super likely to happen but I think it's worth the extra couple of minutes to drill the holes out for peace of mind.
Спасибо
Thanks for watching :-)
If everyone wasn't so non mechanically inclined. This isn't even worth discussing. Not a huge issue at all
I think having the body locked onto the chassis especially if you had something like an ESC fire would be a big deal. Fortunately it seems to be a pretty straightforward fix and I've even had other people tell me that after several packs the pins themselves tend to wear in and don't stick as much.
I'm just glad to be able to help where I can :-) Thanks for watching!
Wait. Instead of demanding Arrma recall, buy back, and totally redesign the truck, you just figured out a simple 1 minute fix??
I appreciate a positive, can do attitude much more than whining dramatics. I'll wait and see if mine wears in before doing any drilling.
If you wanna avoid all risk i guess you'd stay inside wrapped in bubble wrap all day.
Yeah seems like a pretty simple solution and there's plenty of plastic around those holes so I don't think you're going to be weakening the structure. It's not great that the problem exists and it is possible that this solution won't work for everyone but seems to work well for me certainly doesn't take long to implement to find out.
"Boduke"... that says it all.
You watched Earls video I see
It was actually a comment somebody made on a Facebook group about his video that inspired me to make mine. I had the same problem with my body but since It's been a really long time since I've had an ESC or lipo fire The potential consequences of not being able to get the body off didn't really occur to me. Once I realized that I realized that both the mod and the video were worth doing. Plus I like to provide a solution with a problem not just the problem :-) Thanks for watching!
You mean the mountain out of a mole hill video? New designs have issues, if this is the worst one on the truck then I'm comfortable giving them my money.
@boduke9428 to be fair I can understand being upset. Spending a bunch of money on something just for it to have such an obvious and potentially even dangerous issue is fairly frustrating.
I guess I'm so used to every vehicle having some problem or another that having to enlarge a couple of holes just doesn't really bother me but again I can Why it would be upsetting.
Make a square hole😮
Yeah that would probably help. That being said it's really not that big of a deal.
Don't like those pins
Yeah it's not the best design but drilling the holes out pretty much takes care of the problem. In super dusty conditions the body will still get a little bit stuck but it's not going to prevent you from removing it
Thanks for the suggestion,I will use that for my FIRETEAM
Have you had a problem with pins sticking on your fire team? They're a very different design
I know how to fix that problem just don't play in the dirt 😮😅😅
Where I live that's pretty much all we have.
😂😂😂😂😂😂😂😂
What's funny?
?
@Earl Moorhead
:)