Arrma 4x4 3S Power Module fix and mesh setting
Вставка
- Опубліковано 6 вер 2024
- Affiliate links:
M3 Motor washers: bit.ly/31Bdxob
Arrma Big Rock V3: bit.ly/3dV9lEJ
Arrma Granite V3: bit.ly/2E4epcc
Gens Ace 3S batteries:
U.S.: bit.ly/31uD5DG
EU: bit.ly/35lAFYX
Some tips on how to set the motor mesh and screws on your Arrma 4x4 3S BLX line of vehicles.
#Arrma #BigRock #Granite
Glad I found this video, now I realize my gear mesh is borked from the factory. I have one I just bought within the past month and only took out to play with it twice. I noticed at slow speeds it made a noticeable growl and loud chirp-chirp-chirp-chirp-chirp at low speeds moving at a crawl. Took it apart to clean it thinking trashed was under the motor/transmission. There was a little, but was surprised to see my spur gear was also rubbing on the bottom of the chassis. Hearing about people cutting a hole/notch there, I did the same. Noise still persisted, took motor and transmission off and held in my hand to give it a little slow speed and sure enough, the chirp-chirp-chirp was coming from the gearbox itself. Just took the cover off and I can't see any damage anywhere, but I did notice there's a large gap between the pinion and spur gear along with a lot of slack. As you demonstrated with the barely moving click looseness how it should be, mine is more like clunk, clunk because nothing tight inside the transmission. At least that's my guess as to what is making the noise. Had to sit down and research on UA-cam and I thank you for this excellent video showing a good reference. I'm guessing if I had pushed my toy hard (mostly been running on 50% setting to get used to it) and for longer periods, I'd have had a spur gear looking like yours and all chewed up or even sawed down flush. Not good! Just wanted to let you know about my situation and if I discover something other than slack is causing the noise, I'll let you know. But again, thank you and all the other RC youtubers for all you do in helping us noobs out.
By the way, forgot to mention mine is a 4x2 Boost Senton that I just upgraded to 4x4 and so was getting used to working on it and figured I'd try and figure out what the noise was. Didn't help that the kit I received had a different driveshaft than the one in my girlfriend's 4x4 Mega. So, I had to adapt to that, it works but haven't had time to take it out because that chirp noise has been driving me crazy and want to fix that first before I test out the 4x4 it's got now. Sucks being old, had to sit down due to bad spine in my old age, haha, butt goes numb and lower back starts killing me. That was my cue to take a break. Maybe I need a rock crawler? That's probably more my speed, haha!
I think I found the problem. Where the slipper clutch is, the shaft that runs through the spur gear, that seems bent or warped, was able to push the clutch plate thing back and then spun the shaft and you can see that clutch plate has a little wobble in it. That probably explains why the rear-most bearing (opposite end from red part of shaft) had some wear under it like it was moving. I checked that but the bearing isn't seized up, it's probably from the slight warp that's probably making the bearing slide back and forth slightly on the shaft and making the darkened wear spot area. Hmmm.
I think what I have is a possibly bad bearing. It's odd, when the assembly is out of the transmission it looks pretty straight, but the metal clutch plate still looks slightly out of round to me. I do know that there is a LOT of play fore-aft when the transmission is assembled. Now, yeah, the 4x4 driveshaft pushes back against it, but i'm sure it's still there. But the rear-most bearing literally just falls off the shaft that connects to the Diff. Very loose. Supposed to be that loose? I was wondering if the chatter/chirping was from the bearing being loose on that shaft and making a squeak/chirp sound every rotation or something.
Thanks for showing this. I now understand which screw of the axle I need to locktite after reading about this problem in the forum.
Just got two Vorteks for my kids - the mesh was not too bad and they have the washers. I still pulled the screws out, cleaned them, and threadlocked them. Thanks!
For me the motor came loose after a few minutes. This is what the gear now looks like. now the big rock is loud AF... THX 4 the vid.
Had exactly this problem! Thank you so much for your ‘how to/should do’ videos - I’ve learned, and continue to learn, so much from you! Off to get washers and lock-tight!
thanks for the help! video still helpful 3 years and counting
Thanks for all the tips you share ✌️, helps us noobs 💯👌
adjustable motor mounts are just 10000% better in every way. Not locked into stock gearing, can change out motors and pinions and spurs.
I agree 100% about the old V2 motor mount! The pre-drilled holes were way better in my opinion! I’ve gone through 2 of the adjustable plates with no luck at all even with your advice on cleaning first (which is very smart)! I have the V2 mounts on my Granite Blx and Typhon Blx and won’t change them!
What motor mount did you get?
Good video. That is exactly how you are supposed to set pinion and spur mesh, not paper! cheers.
Thanks for the video !
Just opened my granite V3. Loctite and washer where already in. Seems like Arrma did their homework ;)
You can use the paper trick to set the correct tightness between pinion and spur.
thank you! i am getting ready to buy the big rock
good tip! my granite ate up my spur gear because the motor moved a bit
My Senton 3S had some washers on it, and they put some weird elmers glue on the motor screws, way way too much. I got them to replace the screw under warranty, but I had to reuse the washer. I put blue vibra tite gel threadlocker on the two screws.
Extremely helpful! Thank you so much for all of your contributions to the RC community!
Thanks for the information video buddy!
Your information videos are the best and you should definitely become an Arrma Big Rock Crew Cab 3S "teacher" that way you could become a professional arrma teacher, my UA-cam friend.
Massive thumbs-up! 👍
Thanks for helping me do my 1st maintenance job! Great video!
I like the ones with no adjustable but the mesh was to tight and got my motor to hot so I had to switch to the adjustable one but it work out good now motor doesn’t get hot anymore
Same thing happened to my granite. I put the old style mount on mine. Also did the 4s slipper. And I had the same wheel come off...
Try a Loctite STICK... instead of liquid, it's like a glue stick for screws...
thank you for the good tips / advice
Love these cars.
Great video as always
the gap between gears is gear BACKLASH. There IS a measurement for that gap....but you would need a LAST WORD dial indicator to measure it.
Is it normal for the car to sound different after changing the pinion? Mine sounds higher pitched if that makes sense.
My motor mount screws came with the washers already on in my Vorteks blx 3s
Thanks!
What size Pinion gear are you running What is that a 57 tooth spur And what a 14 tooth pinion gear
Thanks for showing this man, Could you maybe make a detailed video on how to propperly set the slipper clutch? Because i can never get it right haha
U probably know by now but the factory setting is .480 less than half inch..the I go like 3/4 turn tighter
Great tip, this happened to my mega Typhon today. Thanks Razor.
Oh also on my Arrma Granite Blx 4x4 v3 I lost a ton of tourqe it won't do wheelies anymore even if I pin the throttle but still seems to have about the same amount of tip end speed what's going on ? It would be great if you can answer that is my slipper clutch loose ? Recently before on the remote the red light was blinking but it stopped blinking so Idk what the heck is up with that
Yea that’s much tighter than recommended
locktite 243 light blue works with dirty fasteners
What screws are you referring to on the axle? The ones by the diff or on the hex ends? Awesome friggin content man. Glad I peeled mine apart. Motor screws were loose. Good stuff subbed
On the hex
Does this apply to the metal spur gear as well? I installed the metal spur gear, and the mesh seems tight or too loose. I can't seem to find the sweet spot.
What size are the screws holding the motor and the 3 holding the outer case on? Thanks
Cool fix and info
is it meant to sound clicky and rattly when i release the throttle?
Im a bit scared to put locktite on the screws. Am afraid i might strip the screw when i need to take it back out. Im a beginner.🙈
Blue is safe. Don't use red. And use good tools, like MIP.
Does the old motor mount fit with the fixed screw holes.
Is the metal spur a worthy upgrade? I noticed my plastic spur getting slightly chewed up just from dirt that makes it's way under the power module (why do they leave this open on the bottom?) I know on my crawlers people typically say to stay away from them. Of course those don't deal with nearly as much power.
It is definitely worth it... but grab one off eBay... Jenny’s rc is the go to chop shop...
How do you get the safety pin off of the pinion gear to remove the pinion?
I’ve got a video on how to remove eclips
Hey bro what is the difference between the 48 p Pinion gear and 0,8 mod ?? Because i dont know what it fit in my arrma typhon 3s. ✌🏻
32 pitch is same as MOD 0.8 and what the Typhon 3S uses. 48 pitch is smaller teeth and won’t work.
@@RazorRC thanks bro👍🏻👍🏻
Should you do this with the v3 models?
3x5 washers? I Googled that and a lot of stuff came up. What else specifically should I look for?
Type in rc with the search should help
@@dj85rocco I did that but all I got was split washers lol. Didn't know it would be this obscure!
Nice tutorial! How tight do we set the slipper clutch on these cause the Manuel has it wrong ?
I'm going to try to make a slipper setting video soon.
@@RazorRC awesome!
The reason why people wanted the adjustable positions is because the fixed positions don’t stay perfect forever.
How to get the screw out of the pinion gear when it's stripped?
Dremel
Where do you buy the whole assembly, my typhon 3s had a nice crash and this exact component cracked
You could try jennysrc.com or eBay if you need the whole thing.
@@RazorRC what is the technical name of this part?
@@stephone304 Arrma calls this whole thing the power module, but check jennysrc.com/collections/arrma-typhon-4x4-3s-blx-ar102696 and find the part you need. Probably either the motor mount or the slipper.
Hi
What grease for the diffs would u recommend
Marine grade is good..its blue
Whenever I take the cover off to get to the pinion and spurr gear the spurr always comes off with the back cover and I cant get it off should I beat it out ?
yeah, there's a bearing in there that needs to spin freely, you gotta change that out.
No never beat it look at what's wrong an fix it I beat mine an now I messed it up never again
My spur gear teeth only engage halfway on the pinion gear....
That’s not how you apply thread lock. You should apply it to both the threads inside the holes and down the screw. Then work it into the screw with your fingers!! There’s a few UA-cam videos giving examples of the different ways people apply it with clear parts so you can see this was doesn’t really do anything.
Your nails are beautiful