Difficulty engaging 1st gear
Thread Starter
Racer
Joined: Jan 2000
Posts: 397
Likes: 13
From: Pittston PA
Difficulty engaging 1st gear
I have developed a problem engaging 1st and sometimes 2nd gears, when I come to a stop and downshift to 1st gear, the shifter wont fully engage 1st gear on occation. If I let the clutch out a bit or shift to second and than back to first it will uasally engage all the way ok. Is this a clutch adj. issue or a trans rebuild issue?
Thanks
Leo
Thanks
Leo
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
I have developed a problem engaging 1st and sometimes 2nd gears, when I come to a stop and downshift to 1st gear, the shifter wont fully engage 1st gear on occation. If I let the clutch out a bit or shift to second and than back to first it will uasally engage all the way ok. Is this a clutch adj. issue or a trans rebuild issue?
Thanks
Leo
Thanks
Leo
Thread Starter
Racer
Joined: Jan 2000
Posts: 397
Likes: 13
From: Pittston PA
Thanks
1st thing I will try is the clutch adj. If I do infact need a rebuild, any recomendations, Is there a reliable shop that I can ship the tranny to, or just purchase a rebuilt unit and send them a core?
Thanks Again
Leo
1st thing I will try is the clutch adj. If I do infact need a rebuild, any recomendations, Is there a reliable shop that I can ship the tranny to, or just purchase a rebuilt unit and send them a core?
Thanks Again
Leo
Melting Slicks
Joined: Oct 2004
Posts: 2,662
Likes: 8
From: Knoxville Tennessee
Check with some of your local speed shops to find a reputable local transmission repair person. Or PM GTR1999, I think that is correct. I think he builds trannies and is first class.
Bernie
Bernie
Tech Contributor
Joined: Aug 1999
Posts: 14,374
Likes: 6,373
From: At my Bar drinking and wrenching in Lafayette Colorado
One of two things will cause this:
- Input shaft rotation has not been stopped prior to engaging the gears
- Synchros worn out
- Pilot bearing worn or tight. If the input shaft is "chattering" in the pilot bearing or if the pilot bearing is "grabbing" the input shaft too tight, the input shaft will continue to rotate after you depress the clutch. This will make the tranny tough the engage.
- Clutch not fully releasing. This can be caused by incorrect linkage adjustment or by a bad pressure plate/clutch.
If you eliminate the turning input shaft as the problem, you need new synchros in the tranny.
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Melting Slicks
Joined: Jul 2004
Posts: 2,864
Likes: 195
From: Maryland
Melting Slicks
Joined: Feb 2006
Posts: 3,428
Likes: 5
From: Japan
Another item not mentioned on this thread is that the 1-2 slider could be worn as well. If you tear into the trans have this looked at-they're about 30 bucks. On my fleabay M20 all the synchros were new, and you absolutely could not get it into first gear without forcing it. Upon disassembly I noticed that the engagement teeth on first gear and the 1-2 slider were badly worn. Not wanting to spending the money on a new first gear I just replaced the slider-no more problem, shifts like butter.
