How a synchronized manual transmission works.

[xtclink]

Great!! Absolutely Great explanation

[sgtgrizzo]

your better than my teachers at UTI

[Karlisplayhouse]

@sgtgrizzo Whoa "sarg". Thanks for the complement! Great appreciation.

[Saskachewan]

Very good explanation. But I still don't get it how that synchronizing thing works. And I have one more question: Why one gears have straight teeths and others have skew teeths? What's the purpose of skewing teeths in gears?

[Karlisplayhouse]

@Saskachewan Re the Synchronizing: Does it help to think of it as a clutch that gets the gears spinning so that they synchronize (are going the same speed) can engage? The skewed toothed gears are called helical gears. They stay in contact longer, have more surface area contact for strength, run smoother than straight gears, and as I recall are quieter. Hope this helps. Thanks.

[Saskachewan]

So why not all gears are made like that? Some of them are still straight-toothed.

As to the sync: it quite helps, but there are still some missing pieces: If it's like a clutch, then what if I switch the gears too fast? Is it possible for them to not have enough time to sync? And there are some strange teeths in the sync rings which can offset a bit. I still don't get their purpose and how do they do they job. Here's some explanation: watch?v=HlLHtnEVAi8 but I don't get it.

[GrlzzIy]

great video man. This is what youtube should be all about, the spreading of knowledge.

[rahmyafify]

thx

[rookerzzz]

interesting. Small gear box on the old volvos, strange though, cause it has teh saem components of a modern car. This must be a 4 speed, yea?

[rdsbbhatia]

thanks u man, gr8 work. U almost cleared all my doubts on gear shifting mech. Wish u a successful career..Ol the best

[stopthatimmediately]

so, if i have this right: the gears are constantly engaged and meshed, but not necessarily engaged by the shaft. changing gears is accomplished by changing which gears are connected by the dog clutch to the shaft and thus being driven, the other gears just spinning freely. neat video, anyway!

[EnzoElite]

Holy shit that was the best explanation of how synchronized MT's work. Thank you so much for the upload!

[SKingg754644]

I wounld like to thank you for taking part of your time to post this video

[SiRadrenalinejunky]

Thank you kindly for you time. this was very informative and while i am an autobody tech and HVAC tech i never cracked into the transmission aspect. however now that i lost my shifting fork for 5th and reverse on my '91 talon tsi i have been doing as much reading i can. but for someone to take the time to do a visual explanation was what i needed to bring it all together. once again thank a bunch

[Karlisplayhouse]

@TheDarqTurk If you mean the syncro-rings, they usually ride on a cone shaped part of the steel gear. Though there are others that are held in place via a splined part of the gear assembly. This explanation might not be too clear, but when you get into rebuilding your transmission, I think that it will be clear to you.

Thanks (all) for looking and for your good feedback.

[pauliussulcas]

Man this is THE BEST video (from mechanism understanding point of view) of how manual transmission work... Thanks a lot! :)

[Antoniocool86]

Great video.

[chachachachilie]

I call it the countershaft

[toxicbmx1]

Is it hard to fix the first gear syncro Thingy?

[Karlisplayhouse]

@toxicbmx1 No it's not if you have the necessary tools (such as snap ring pliers), have a good place to work so you can keep everything clean, and if you are dexterous with you fingers. There are some springs and things that can be a little tricky. if you are going to the trouble of opening the transmission up, may as well replace the rest of the synchros and anything else that is worn. Usually one would buy a rebuild kit with all of the usual parts but it is a judgment call. Thanks

[valflyinf]

Cool video. Iam all into this transmission stuff at present since my buddy and I started rebuilding his 5-speed. Go check out part1 on my channel. Its a NV3500 that makes a whiny noise. Took it down today and opened it. We are now trying to see what needs be replaced.. So far we have only found damage on 2 gears, the gears themselves. I would say it would come from a worn out bearing that makes both those gears engage at a weird angle?.. Hehe who knows, soon enough.

[kolleke1]

It's still quite hard for me to understand synchromesh rings. I think I have to play a bit more with a gearbox...

[Karlisplayhouse]

@kolleke1 thanks for the input. I'll redo this video if and when I can to make that clearer. Essentially they are (brass) rings that act in a similar manner to a clutch. They get the gears spinning together (synchronized). Based upon all of the other videos out there, there must be one that shows it more clearly. Let me know if you find one you particularly like that answers your questions.

[JohnsonGetDown]

Very good!!! Thank you

[alex198619861986]

best video my grande, bravo

[Karlisplayhouse]

Thank you all for your positive feedback. If I had a place to work, I would have taken the thing apart to show in more detail how it works. If there is anything that you want explained, ask and I'll see if I can answer your question.

[Intelpentium54321]

excellent video! I find it hard to understand this and I kinda started to get it!

[citrusflorida]

great video

[gizmoguyar]

Nice, definitely the best video on the subject.  You didn't tell me you had a transmission, or do you? how'd you get your hands on it?