M22 Rebuild
Thread Starter
Racer
Joined: Sep 2005
Posts: 359
Likes: 0
From: Shoemakersville Pa
M22 Rebuild
I got my M22 rebuilt (was jumping out of third gear) The rebuilder put in a new 2nd and 3rd gear as well as bearings, bushings, syncros..... and everything alse that goes with a rebuild. Reinstalled this weekend and now I can't even fast shift into 2nd or 3rd. If you drive like an old lady it works ok. The rebuilder said I have to drive it and break it in. I never heard of breaking in a manual trans before, it either works or it don't. I think he did'nt do something right. A buddy asked me if the builder timed the gears when putting it together and I assume he did if this is a part of the rebuild. Does anyone know if timing of the gears would cause this problem?
Pro
Joined: Jun 2005
Posts: 660
Likes: 4
From: Fredericksburg VA
Not sure but Keisler talks about noticeably firmer shifts for the first 500-1000 miles. It sounds to me that your builder could be telling you the truth. Give it some time and see if it gets better.
Melting Slicks
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
I just had my T10 rebuilt the end of summer and it was real tight too. I have several hundred miles on it and it gets better each time I take it out.
I have never heard of "timing" the gears & I grew up around cars.
I have never heard of "timing" the gears & I grew up around cars.
Tech Contributor
Joined: Aug 1999
Posts: 15,173
Likes: 3,982
From: Connecticut, USA
If he changed 2nd and 3rd gear but not the countershaft then you'll have new gears running against old. This usually is a noise issue since thegears themself do not move. The syncros lock on each gear buy a sliding hub (aka a slider). When rebuilding the fit of the gear,syncro and slider should be free. The dog retainer springs in the kits are usually longer and may be dragging the engagement of the syncro's. If should be a firm but certainly drivable condition.
I don't know what timing he was referring to? If you get an explanation please post it.
I don't know what timing he was referring to? If you get an explanation please post it.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Burning Brakes
Joined: Sep 2004
Posts: 1,224
Likes: 49
From: Ventura Calif
I put my 60 T-10 together with all new collars, forks and synchro rings and it wouldn’t even shift outside the car. I had to go back and grind .010/side off of the forks before it would work. It shift great now in the car.
