Interesting Video on how Manual Transmissions and how they work

[FuzzyDunlop]

http://www.wimp.com/manualtransmission/

The syncromeshes described around the 9 minute mark are a common problem for my transmission - I just never knew exactly what they were before! now I do.

 

[DaTT]

A cool video, but I would like to see one with modern transmissions.

 

[phucheneh]

http://en.wikipedia.org/wiki/Synchromesh#Synchromesh

If you can grasp how synchronizers work, there's not much more to get. The synchro sleeves are moved by the shift forks, with are connected to rods and levers. The only other thing you've got left is understanding gear ratios. And how to use a third shaft to reverse output shaft rotation (reverse gear).

 

[Raduque]

A cool video, but I would like to see one with modern transmissions.

Define modern. The concept hasn't changed much in 70+ years.

 

[Railgun]

A cool video, but I would like to see one with modern transmissions.

You can search around a bit for Getrag's DCT video. They have a small series of tech related material.

 

[DaTT]

Define modern. The concept hasn't changed much in 70+ years.

Something with more than 3 gears? Modern transmissions have a lot more going on inside that that. I understand that the concept is somewhat similar.

 

[phucheneh]

Something with more than 3 gears? Modern transmissions have a lot more going on inside that that. I understand that the concept is somewhat similar.

The biggest thing for me is that I've simply never seen anything like what is being shown in that video (as far as synchronization). It's probably the same principle, but the parts look alien.

I remember building an old GM trans (four speed) where there was a removable top cover that basically worked about as well as having a 'cutaway' type trainer...trying to find some pics of that.

edit: this article has some good pics.

http://www.highperformancepontiac.c..._speed_transmission_rebuild_pt2/photo_06.html

You've got the synchronizer hub, with the synchro sleeve that slides back and forth across it (that's the part with the groove that the shift fork slides over. The synchro sleeve pushes on the blocking ring (bronze colored part with small teeth), which in turn pushes against the gear. The gear being the part with the big constantly-engaged helical teeth; but those aren't the important part. The bit that actually engages the gear are those attached 'dog teeth' (part of the gear, not removable) which the synchro sleeve slides over to engage the gear.