Learn About Transmission Synchro Rings
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- Опубліковано 19 чер 2012
- Learn how synchronizer rings work with Paul Cangialosi
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disclaimer:
The content of this video is available for informational and educational purposes only. It is not intended to be a substitute for the professional advice of a mechanic who has personally inspected your vehicle, nor does it create a relationship of any kind between GearBoxVideo (Paul Cangialosi) and you. Every situation may be different, and GearBoxVideo does not make any warranties, whether express or implied, as to the accuracy, fitness, or applicability of the information or automotive parts portrayed in this video to any project and makes no guarantee of results. GearBoxVideo and any sponsors or manufacturers of parts that may appear in this video or any of the channel's content will not be liable for any damages related to personal injury, property damage or loss of any kind that may result from the use or reliance on this video and/or any automotive parts represented in this video. You are using the information and automotive parts portrayed in this video solely at your own risk. - Авто та транспорт
Again everyone... your SECURITY restrictions on your Google plus accounts prevent me from responding to your questions
GearBoxVideo nicely explain
GearBoxVideo ... Very impressed... I have a Muncie 4 spd in my impala with a Vertigate shifter, love it but with these times I need a up-scale trans like the Richmond 5 spd. But don't want to loose my Vertigate...what is your comment?
please help me reply me i have a problem i m using ford fiesta 2009 tdci engine today im facing some problem with my gear shifting when i move my car with 1 2 3 it has some weird sound but when i use top gear it doesnt have any sound and car runs smooth whats the problem please reply im your subscriber pls tell whats the problem...
GearBoxVideo nv4500 long teal shaft dodge
Hi. I want to do this. Where should I start. Im aircraft technician. Please answer
This is, hands down, the clearest description of synchros I've ever seen. Thanks, Paul.
Thanks for that!
I actually learned something. I ACTUALLY FEEL I KNOW HOW TO DO THIS IF I HAD TO. Thanks Paul!
Great video! Exactly what I've been looking for, how the synchros work. And gets right to the point, no bs. Thanks Paul
You are the first person I have seen to acknowledge the "blocking" condition and fully explain why. I have asked that question many times and gotten nothing but a bewildered look from those I have asked. My top loaders always have that problem after a while from power shifting.
ytmachx that's why they are called blocker rings.
My man Paul dropping the knowledge. These videos are so indepth and informative. Most videos just do a brief explanation with no example so seeing the parts and watching your demonstrations really help someone like me who's just afraid to open up the trans and get lost with all the moving parts. So thanks man.
Amazing video! I've been watching videos from german transmission manufacturers (I'm from there) but no one explained it so quick and easy. And they used animations.
There are some guys you just know not to piss off. One of those guys can explain synchronizers perfectly.
Finally some one who explains how it really works!
The important part for understanding how and why a synchro works is the indexing to the hub gear and the friction on the speed gear.
Excellent information. Thank you.
Man I love these videos that demonstrate the inner working of the transmission. While I will probably never disassemble the transmission myself, I learned a whole lot about transmission from watching your videos.
Thanks for watching!
You have earned a new subscriber! Being an Automotive enthusiast all my life, I have always wanted to be a fly on the wall of a great machinist!!! GREAT VIDEO!!!
Got here because you replied to a comment of mine on a different video asking how the gears re-engage … 10 years after you posted this!! Amazing - I’m very impressed.👏👏👏
Thank you so much for replying, for the referral, and for the excellent explanation(s). I’ve never even heard of synchro rings - spent my career at a desk. It’s never too late to learn. 👍🙂
Awesome video! I learned a lot from it. Now i am not afraid of the transmission anymore! Please do more video on all the mechanics parts on cars in the future. Already subscribed.
+Tony Posluszy Your security permissions don't allow me to reply to your comments. Just because you have new synchros installed doesn't mean they are good quality ones.
Besides OEM what brand names are good when it comes to transmission parts? What do your kits come with? Timken bearings? National Seals? Need to know the best brands for these parts... (like the PowerStroke 6.0L engine, cheap parts generally become disastrous and sometimes come back to haunt you)
There are no good brands as a blanket brand. Example; some SKF /CR seals are really bad and short lived compared to some Tawanese seals. It's about quality parts and experience. I have built 1000's of transmissions, so you get to know what works best for you.
Beautiful beautiful video. I've always been baffled by synchronizers. And for the first time today I've fully understood the whole functioning of this machinery. Kudos to you good sir. My mind is blown.
Long time mechanical engineer but I've only worked on motorcycle transmissions that don't use synchros. Never really understood how they work. Great explanation. Love picking up tidbits like this even if I never use it.
I have been trying to wrap my head around how synchros work for a while and this video was perfect. It all makes sense now. THANK YOU SO MUCH!
Thank you, please share the video!
excellent tutorial. many thanks, gearbox video. i've been baffled by how synchros work for a long time, really thrilled to finally understand.
Thank you!
thanks this various vedios
GearBoxVideo great videos, thanks much for the time taken to be precise
this video is so helpful i have transmisson apart and still didnt understand how it works
I love the no nonsense delivery style. Fantastic!
And now I finally know how these work! I have the trany from my WRX open right now for a grinding 4th. Turned out to be a shift fork worn almost completely away but this helped me inspect the synchros
Great video! Thank you very much, that helped me understand how a gearbox works and that made my automotive engineering student life easier. You are awesome sir!
+voiddamn Thank you very much.
voiddamn
When you started out Paul, I thought this was gonna be one of those dodgy videos that didn't really explain much at all, but that was excellent and AT LAST I now know how synchros work - thank you so much
Thanks for the feedback!
Great video. I've seen a ton of videos that just say "syncros work by matching the speeds of the gears" but never really understood the details. Thanks for putting up a video with some real understanding and technical detail.
Great video! I'm doing a level 2 IMI qualification, and part of that is understanding how transmissions work, and your video shows in great details how the syncro's work. Thanks!
Appreciate the feedback, thank you
What about an nv5600? It grinned for a bit when using the clutch then I started rev matching without the clutch. I changed fluids and now I lost 5th gear. When I try to put it in 5th it just feels like nothings there
The 5th gear fork may have broken of the dowel pin simply dropped out.
Yoooooooooo this is a rare sighting
"without the clutch" 😬
Thank you very much! Now, I understand how synchro rings work.
Thanks a lot for this video it was well explained and really helped me understand what felt like a magical system.
Thank you, 50th video on youtube finally one that explained it really simply and clearly. You have a knack for making this stuff stick in your memory and be unintimidating
Thanks to this video I was able to fix my Case 580k backhoe that was immobile because of a key jamming the sync mechanism. After seeing how it went together I was able to fix it with no parts and drive it home. It was broke down in a field. Thanks!
Very cool.....
This was incredibly informative, thank you!
+ZhulMechanos Thank You!
The video was very good and I am very grateful .Thanks for explaining more about the gearing mechanisms in the gearboxes
Best video I've ever seen on how synchro rings work! Most other videos show the cone clutch speeding up/slowing down the gear to match the slider, but don't go into detail about how the blocker ring stops the slider from engaging until synchronization is complete. Also, now I know why my old car sometimes just wouldn't shift into first. Thanks :)
First and rev problems can also be from the clutch not completely disengaging 😇
just excellent
Thank you.
I used to build gearboxes for a living for the UK market. for the Ford Transit, the newer coated ring was often disgarded in favour of the older brass ring, as often the coating would break up on the newer rings. VW thought they were making the gearchange for 1st and 2nd smoother on the 0A4 boxes, which replaced the 02J box by using smaller dogteeth. to this day, this is a design fault, as the hub outer slide ring hits the 1st gear dogteeth with the 3 part syncro offering no breaking effort on the gear. This leads to the hub slider teeth burring over, and then prevents it from traveling into 2nd gear. And finally, the UK Toyota MR2/Avensis/Cellica gearbox uses a cheaper bearing over the import model. when it fails, the damage to the gearbox is quite destructive, but dispite the mass trauma, some good cleaning up with debur tools and a new CWP, along with a rewelded and machined rear case puts it back on the road.
+Allan Dawes Have you opened a Celica GT4 (E154) gearbox before? I'm thinking of rebuilding the engine and the synchros because its kind of notchy to get into second and third gear at speed. A guy called Ryan here on YT has made videos about it and it seems simple enough.
+MityLite Ive done the 5 speed manual box's. The 5th hub is the only tricky bit to get off. I usually unbolt the 5th fork from the shaft and slide the outer hub and fork off, and recover the strikers and wire clip. Note the orientation of the strikers. Then remove the C clip. I used a 2 legged puller, but half stripped down and using 2 M8 bolts, but make sure the thread goes all the way to the end of the bolts, and doesnt have a taper on the end. Screw the bolts into the hub center with the puller in place, and carefully work it up. When you refit, make sure to have a block of wood supporting the input shaft, and use a tube drift to knock the hub back on. You can have it complete when you knock it back on. Give the striker clips a slight strech to give them a little extra hold. Won't cause any problems with gearchange. When you press the gearshaft, have the spitters under 4th,then 2nd - pressing the whole lot from 2nd will chip teeth. Then remove the C clip and press 1st. There is a little ball under the washer below 1st. Note the syncros are sided, so dont swap them around, else it will be hard to get gear. If your having 1st and 2nd issues though, it is most likely the clutch. The bearing under 5th usually breaks up and locks the box up.
J'ai une voiture audi 100 Anne 1987
Jai le 2em ne repons pas fasil.
Nkoun nijri 3em nraja3 2em yt3ada bisif
When the master speaks, I listen. No one could explain this better.
THANK YOU, way better than any other video i've watched and i've watched videos on transmissions for months trying to get a solid grasp on this
Thanks for watching
My Old Man used to say "Grind me off a pound" and I had a friend that would say "I heard they making them out of rubber next year." Another great video.
My book makes it easy. Its available on Amazon. Look for author Paul Cangialosi
Your video just made the light turn on over my son's head. Now he understands what I've been trying to explain to him about why his third gear grinds if your not careful to match the engine and road speed to help it. Thanks a million.
Excellent explanation , thank you for sharing, regards from Australia.
Hello Great Video btw ! I have an issue when car is in running it couldn't downshift from 3rd or 4th or 5th to 2nd and 1st.. So i cant downshift either to first or 2nd while in running. I have to stop car or near to idle then need to shift to 1st gear by double pressing the clutch then 2nd gear , then works like butter 3,4,5. So whats the problem and what to repair/replace. Mine is suzuki swift Vdi 2013 1.3L diesel engine, manual transmission , front wheel drive. And i am from India. I need a suggestion as quick as possible.
Sounds like you have a clutch release issue. Often times upshifting will work but downshifting is much harder when clutch release is an issue.
Local Garage man said it would be synchromesh rings and locks for 1st and 2nd gears, and also he said hardly it will cost 100 bucks total here. Is it correct or problem with clutch release only ? I dont know anything. Help me out . Thanks for the reply too
Vinay Kumar if it would cost around 100 dollars and they are willing to guarantee the work let them do it.
Thanks for the answer. I just bought the used car 3 weeks ago 98.5K kms on the odo. we replaced all oils,filters, ****"clutch plate, bearing"*** in local garage. Here it costs total 350$ to do that including labour charge etc. Just driven 500 km so far. This car(swift 2013 VDI) total costs me till now 10 grand . Hardly the problem is with the 1st gear first which is rare cases shift to first gear, no problem at all. Later 2 days back it came for the second gear too, this cause me more problem while slow traffic, which is either going to stall in 3rd or stop the car in neutral ( which are both cause traffic problems),then i can shift to 1st and 2nd. In my observation i saw i can shift to 3rd to 2nd after hardly press brake and seen less than 15 km/hr speed. What was the problem? Tell me what to do. I will proceed with your answer. I consider your previous comment also. But i need to explain you the whole case because you dont know what was exact problem without checking the car. Thank you once again.
again this sounds like a clutch release issue. If you can put it in these gears with the engine off, it most likely a clutch release issue
Very nice explanation, Thx.
+Nate Dogg Thank you
this is so far the best explained video on synchros on all of youtube ive seen so far. been having synchro issues in my Honda Prelude H22, explains alot of the WHY. thank you!
Great description, Gearboxes and their inner workings are like mysterious 3-D Jigsaw puzzles!
Not so much now since I've been tutored by the best - Thanks Paul!
now i know whats rong with my first gear down shift
Thanks Paul, for this explanation, I got a bonus answer too, when you explained the operation of the sync rings in a WC T5. I've been trying to understand for a couple weeks why the confusion about what kind of lubrication in the T4 &T5. Now to figure out if I have a WC T4 in my '84 Jeep or no.
Paul, you rock. This video was a joy to watch, your explanations were perfect. Thanks.
Thanks for watching
Awesome video. It is a pleasure to listen to someone who knows what they are talking about, and you do.
Brilliant vid, helped me make an informed decision on what to do with my car
Excellent video. I watched several videos covering broader concepts of manual transmissions but none of them fully broke down what was happening with the synchronization rings. My amateur mind wasn't understanding where the transfer of power from the input was occurring. All of the models and animations cover up this action with the shift forks or gears, so you can't see what's happening beneath. It makes a lot more sense now. Thanks.
Thanks for the comment. Please subscribe and share...
Fantastic video. I believe I have a blockout condition on my Super T10. I couldn't figure it out till I watched this video, everything looked fine. Thanks for taking the time to share your skills.
Thanks for posting this. I've been driving stick shifts for almost 40 years and never had a clear idea of how synchros worked. Your explanation of the newer non-bronze multipart rings also explains why I have to run $20 qt Castrol Syntorq instead of $2 qt generic 90 wt gear lube in the NV-4500 5-speed in my '98 Dodge Cummins.
Yes the oil is expensive, but you need to keep the linings soaked in it so they don't burn up
Just want to say very well explained. I’m going to rebuild my fwd transmission and have learned so much with your explanation on worn parts.
First it would be helpful to know what make and model car you have and what brand oil was used. Sounds like the wrong oil and if the transmission bwas removed the hydraulics may not have been bled correctly.
Thanks for the video!, this helped me understand and diagnosis the symptoms of bad syncros I'm seeing on my transmission
arjay1337 Glad it helped!
Very good video with excellent info .I remember our teacher in trade school back in the early 70's explaining this to us with text and hands on and i never forgot it.
+twins56 Thank you for watching.
thank's i'v been checking out your videos I going back to the sifter adjustment and dabble check with alignment pin
and new set of pins and shims before I open anything.I all ready purchest one of your book's ill checkout that sight
Thank's
It's obvious you are into these trans and your excitement comes through in your voice. You were on a roll in this video and you made everything perfectly simple to follow. I especially like the fact that you show how each style has it's good points and weaknesses.
The aspect of the correct type Lube was awesome and to the point. I hear of so many guys wanting to go away from the recommended and try some Snake Oil from some salesman. Now you talk about disaster waiting to happen.
It was really nice to see someone else point out how not to mismatch components.
I hear guys tell me they took two trans and made one. Later I get it in with shifting issues...and then they wonder why it needs so many replacement components. It's like you pointed out, Rebuilding the engine and replacing all the internal components converts into trans rebuilds. You don't just replace what looks bad or is worn without considering the whole unit. I don't get how that notion all started but it's been that attitude for ages.
Some people just don't have a concept of how these work and only know how to change parts but not how to build. I know you'll know what that means.
Anyway, another great informative video and I learned some more new things again. Thanks.
I find so many sites that show some guy doing some kind of build with his special trick or new component. Have you ever noticed how their project is at one level of completion, the video breaks away and all of a sudden a ton of work's been done? Then when the guy comes back he starts talking like he did all the work off camera...The presenter has perfectly manicured hands, clean fingernails and clean clothes while you see a worker in the background working on a similar mechanical unit? IT always cracks me up. My point is I don't get that impression with you and you add more comments supporting what you're showing. It's certain to me that you are no pretender and I appreciate all the information you share.
I am impressed and now a faithful follower of your channel. Keep up the great work.
Robert (Auto Doc)
Ooooooutstanding video! Thanks for covering some of those small-but-priceless bits of knowledge that are typically so hard to find. Books are okay but nothing beats hands-on experience and failing that, superb videos like this.
Thank you!
I will look for converting gear ratios. differential ratios (final ratio) and Adding a top gear or swapping transmissions on your channel. Thanks for the great explanation of Keys, Synchros, blockout and the advancements over time.
You can look at the teeth, if you have one of those little inspection mirrors. The ring height on the gear can also help determine if the ring is worn.
I like the Automobile engineering , especially the gear shifting system narrated by experts. Being to go to bed I will promtly attend the class next day.Thank you.Good night.
Thanks for excellent explanation. I just put together a VW transmission (air-cooled), and it has exactly the problem which you explain at about 5m10s in. Thanks for taking the time. Really helpfull.
Very informative, great insight to gear synchronizing in gearboxes.
Hi Paul, Just to say thanks for a great set of videos. Just rebuilt my 1970s Land Rover gearbox and used a lot of your tips. Gearbox now back in the truck and working, seemed a bit tight on the shift at first but seems to be getting easier. Thanks again. Graham
Appreciate it
I've been a subscriber for quite a few years, but just noticed this video. I have a g360 and a saginaw that are going to get some love soon. I know they aren't the good stuff but they should do to learn on.
good job, thank you.
Great video, I've watched I don't know how many others trying to figure out exactly how a synchro engages. This one explains everything perfectly...thanks!
Thank you for the great comment make sure you subscribe to the channel!
I just finished up rebuilding /restoring my super t-10! Actually quite easy. Thanks Paul for your videos and your book! Hardest parts of the process was loading up the needles in the counter shaft, but using thick sticky tranny grease and putting it in the freezer for later use, made it very easy. Dropping the rear extension housing onto the rest of the case, and aligning the reverse shift fork on the reverse gear went really well.
Pressing on the gears and bearings onto the main shaft was also really easy.
Installing the front input shaft bearing was a little bit tricky, I had to tap it on while giving a bit of heat from a torch (non-sealed bearings). Install the large od snap ring around the bearing and keep on tapping until you can get the washer on and slide on the snap ring. For what it was, it went pretty damn good.
Thanks Paul.
Thanks for your great feedback and a big thumbs up for doing the job yourself!
I had a 68 Road Runner 383 with 4 speed trans. The third gear syncro was bad so it would grind going into third. Now I understand how it was worn. Great explanation. You really know your stuff.
Had one of those as well. One of my faves
I remember shifting the old Crash Boxes where you double clutched them or shifted by your RPMs. I drove a 75 Peterbilt with a 13 speed and it was all done without using the clutch. It had a clutch brake on the input shaft but only used for getting it into gear from a stop.
I appreciate the inner working of a manual transmission now, thank you. I've had a 66 327 corvette since 1978, it always would pop out of 2nd gear when you let off the gas, I've never repaired in over 40 years, I believe its a Muncie, someone called it a "rock crusher". I'd like to have it repaired, now I know what's involved. Great video, thanks again.
My 69 Firebird had a muncie that use-ta do that. Even with a new blocker ring. I remember a Co. that sold a syncro assy, to cure that problem, that wasn't too expensive. I can't remember the details of the replacement parts, that compensated for what-ever caused that ailment, cause it was so many tears ago. But I do remember it fixed the problem. I think it's a common problem with some muncies. Maybe the 2nd gear gets a little wear on it's bore, and rocks. (?)
It's the gear itself and the slider usually. New synchro rings will never fix that issue
Wow, 11 years and still schooling us. This is hands down the most descriptive and informative video regarding synchros. Thank you!
Thank you
Said like a true new yorker. Explains how it is and no bs, cheers
excellent descriptions and visuals. I didn't know how the synchro slots and keys worked and you were the only place that explained it clearly.
Finally I understand and see how synchronized gears work. Thanks.
I am just an older "shade tree " guy and want to thank you for a beautiful explanation of synchronizers . Just awesome .
Thanks
Your expertise has really paid off for me, I noticed after I reassembled my main shaft on my Muncie that the front synchro/gearset was frozen up, so I popped the snap ring off, pressed the assy off and found out the synchro was one of the wide setups, unlike the other set, so I grabbed the old synchro rings I removed and put the shorter set back on.Teeth were good, so all is well. Im glad I bought your book and watched all of your Muncie videos. Keep up the good work! Oh yeah, thanks for a quality rebuild setup too. :)
Thanks for the feedback. Much appreciated.
The video gives a good insight into why the right oil is so important. Thx :)
Very very very good explanation keep up the good work !
Okay this was a really huge epiphany day for me today! Thank you!
Thank you very much! This is the first time I really understand syncro-rings! I can't actually understand why others can't explain it that way! I saw several videos and they just don't show the things like that!
Thank You.
Same problem here, thanks very much for your explanation
Estebon Ham On I appreciate the comments. Thank you.
Hey man,I get it now.This video helped me a bunch,and made it all seem very simple.You're a darn good teacher.I'v been having a 2nd gear downshift problem and it didn't seem that the teeth were that bad,but I'm sure now of what's going on in there.Thanks.
Thank you very much for the excellent demonstration and narration!.
Thanks for sharing! Congrats from Brazil!
Now this is exactly how videos should be made, no bull just straight forward easy to understand Transmission for Dummies information. Thank you GearWorldTV just subscribed
Brilliant! Thanks for the lesson. Very good explanation on how a gear is synchronised. Great fit when I start the strip down on my eurovan gearbox 2nd gear won't select.
Thank you.
Old video, but great info. The OP knows his stuff.
Thank you. Thank you for clearing up the "black magic" and wizardry surrounding synchro rings... always wondered how they worked and what caused this stuff to fail. Fantastic explanation; great video; awesome information. Stuff like this is what the internet was intended to help with. THANK YOU!!!
Thanks for watching!
That was an AWESOME vid!!!
Thank you for explaining so well, I've gained a beginning understanding of this technology, I need to repeat watch... to ingrain the understanding, thank you for being so generous with your knowledge.
You can do it!
Super helpful video for me, someone who knows little about transmissions, building a nv3500 for fun.
probedude.... you are correct. when i speak of indexing in the video is exactly what you are having
THANK YOU PAUL,,STAY WELL
Slots open up from wear and the keys don't usually remain in the same position because the gear's thrust force changes when you are on and off the gas, pushing the ring and key back towards the hub. The gear is helical so acceleration and deceleration will move the gear towards and away from the hub.
Well after watching a fair few videos now, especially this one, I'm sold, bought your book, I don't even care that I currently don't have a trans to work on, it's just super interesting, thanks so much Paul!
Thanks for your support.
@@GearBoxVideo My pleasure mate, thank you for the knowledge :) do you have a patreon at all?
I subscribed. Thank you for such a clear video. I even bought the book too. More videos please!
Well done !! Thanks for the excellent explantion.
I have now seen most of your videos. Very entertaining and enjoyable. Excellent work and straight to the point videos. I have visited 5speeds.com. Naturally I already have your book. Good work all of it.
Thanks for your support
@@GearBoxVideo hello my name is George. I would like to discuss with you rebuilding my m- 22. It popping out of 2nd & 3rd gear on a hard declaration. 1st gear is just starting too..What am I looking @ to go through it? I know I've only provided cursory information, but would like to speak to you directly. Thanks
George.
Thank you for good lesson