4 Spd. Shifting Problems
Thread Starter
Drifting
Joined: Feb 2005
Posts: 1,583
Likes: 5
From: Richardson Tx.
Mark, This is actually the second time that I have installed the tranny + clutch - the disc looked Ok when I pulled it out. The clutch is brand new - not to say that some new parts aren't defective.
Right now I am idling in gear (w/ clutch in) a few times per day to see if some hot/cold cycles will help.
thanks Rob
Right now I am idling in gear (w/ clutch in) a few times per day to see if some hot/cold cycles will help.
thanks Rob
Burning Brakes
Joined: Mar 2002
Posts: 803
Likes: 0
From: South San Francisco CA
Your shifting problems may be caused by worn motor mounts. I had the same problem for several years and never could adjust the linkage properly. The reason is the motor mounts were totally worn out and the linkage on older Vettes is directly tied into the motor and not totally on the transmission. Changing the motor mounts solved the shifting problem with no need to re-adjust linkage. My current mechanic knew about this where my old mechanic didn't. He just kept adjusting and adjusting and adjusting. Have your motor mounts inspected and if they are original or dried out or cracked, install some new ones. Bet this does the trick!!!
Thread Starter
Drifting
Joined: Feb 2005
Posts: 1,583
Likes: 5
From: Richardson Tx.
Thanks Fontking, I read that somewhere as well. However those motor mounts are brand new and all tightened down as well. That's one of the problems with this - Its nothing very obvious-- to me at least. 
Thread Starter
Drifting
Joined: Feb 2005
Posts: 1,583
Likes: 5
From: Richardson Tx.
Hey Roger,
Well, I had been letting it idle in gear with the clutch in for about 5 minutes - 3 times /day. So last weekend I decided to drive it to see how it felt and I have to say that it felt better. I was still not able to get it into Reverse with the car on but downshifting into 1st and 2nd was a lot better. So I am thinking that if I continue to use it more that it will allow things to "work out".
What's your take?
Rob
Well, I had been letting it idle in gear with the clutch in for about 5 minutes - 3 times /day. So last weekend I decided to drive it to see how it felt and I have to say that it felt better. I was still not able to get it into Reverse with the car on but downshifting into 1st and 2nd was a lot better. So I am thinking that if I continue to use it more that it will allow things to "work out".
What's your take?
Rob
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
You've gotten allot of input on this so I'll throw in my experience.
When I put in my new motor/clutch and started it for the first time I couldn't get in gear either. I verified that the linkage was adjusted properly, free play was correct and the linkage was disengaging the clutch disk properly. It was driving me nuts. I finally started the car in gear, even with the clutch depressed when the car started it wanted to go forward. Still had troubles getting it in gear but not as bad as the first time. After driving a little it got better.
Long story short it turned out to be the pilot bearing was not allowing the transmission mainshaft to turn inside it and it was turning the shaft even though the clutch disk wasen't engaged. Finally ended up spinning the pilot bushing in the end of the crank, that's why it got better. I replaced the pilot bushing (NAPA) with one from GM. Problem gone!!
Bill
When I put in my new motor/clutch and started it for the first time I couldn't get in gear either. I verified that the linkage was adjusted properly, free play was correct and the linkage was disengaging the clutch disk properly. It was driving me nuts. I finally started the car in gear, even with the clutch depressed when the car started it wanted to go forward. Still had troubles getting it in gear but not as bad as the first time. After driving a little it got better.
Long story short it turned out to be the pilot bearing was not allowing the transmission mainshaft to turn inside it and it was turning the shaft even though the clutch disk wasen't engaged. Finally ended up spinning the pilot bushing in the end of the crank, that's why it got better. I replaced the pilot bushing (NAPA) with one from GM. Problem gone!!
Bill
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