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914World.com _ 914World Garage _ Adding 1st gear to my trans

Posted by: 914forme Aug 26 2017, 05:34 PM

Well I need a bit of advice.

Out of these three which one would you use, and which is the worse? The worse will be used to make a tool, the best will go in the trans.

All three lined up, the stacks will stay with the same letter, I am not playing a shell game here.

So A, B, or C

More Detailed pictures of A

And B

Finally C

Thank you

Attached thumbnail(s)

Posted by: 76-914 Aug 26 2017, 05:54 PM

I'd say A except I can't get a good look at C because the pic is a little blurry.

Posted by: 914forme Aug 26 2017, 06:36 PM

Sir Andy school of photography Did I mention I was counting gear teeth all day

Posted by: dangrouche Aug 26 2017, 07:46 PM

I believe Dr Evil would say the sharpest and crispest teeth. I dont like "B" selection.
After checking for the sharpest teeth, then see how it snaps together onto a syncro. I would like the snuggest fit. This would be my strategy to see that there is plenty of meat on the walls of the ring gear.

Posted by: adolimpio Aug 26 2017, 08:08 PM

Really need a better picture of the teeth on C

Posted by: oldie914 Aug 27 2017, 05:53 AM

I recommend you compare your 1st gear syncro teeth to the teeth on a 4th/5th shift sleeve. The 4th/5th doesn't wear much and provides a baseline.
The syncro teeth should be sharp, not rounded. You also need to look at rails behind the teeth to make sure they make a smooth compression of the syncro ring as the gear engages. Sometimes they will wear and metal is smeared off to side; look for sharp edges. I once rebuilt a transmission that had so much metal displaced that 1st gear was blocked.
That said, all 3 of your sleeves look pretty good even though it is hard to tell from pictures. A seems to be the best.