Sorry I haven't responded. Been driving to the Niagara Falls show. I'll try to answer the questions, as best I can. I appreciate all the comments. As soon as I get home from the Ohio show, in mid August, the trans is coming out. I think I have located another trans (thanks Tom Rightler) I can stick in the car temporally. If another trans eliminates the problem, then at least I know it's in the trans. If not I'll look at the flywheel clutch etc.
I'm not so sure it's in the trans, Bill.... If it does it without even letting up on the clutch, the only thing turning is the flywheel and pressure plate. You might have a pilot bearing issue, a clutch disc/assembly issue, or possibly even a bent input shaft (unlikely, I think)
I've put probably a hundred of these together, and never heard of anything like that... My best guess is a bad clutch disc.....
Dave, the pilot bushing is new. I can't imagine anything being wrong with it at this point, but I will check it out when I pull the trans. I won't have time ti pull the trans before Ohio. I'm thinking maybe you could sit in the driver seat and feel the vibration, in Ohio, and see what you think.
I don't know that it's a clutch if it only does it in 4th and 2nd gear. I would think it's inside the tranny but I haven't rebuilt a bunch either so it's only a guess.
I would think it would shake all the time if it were a flywheel/pressure plate out of balance??
I'm going with the majority here, and say it's PROBABLY not in the tranny.
Without actually seeing/being in the car, it's nearly impossible to say what the problem's source is. But, if this happens when it is just sitting still, ESPECIALLY with the clutch depressed (which means the disc is not engaged), I almost gotta believe the pilot bushing/bearing is REAL bad!
I know what your saying Tom. It's hard to describe the vibration, but if you were sitting in the seat you would feel it big time. Again, I will look at the pilot bushing, but it is brand new, with virtually 0 miles on it.
Bill,what kind of clutch/pressure plate are you using?
It's brand new Centerforce 2 clutch, pressure plate, and throw out bearing.
I'm wondering if it could be one or both of the shift forks (the fork that moves the syncros)? Maybe for some reason it doesn't come completely free an the sticking is causing it to move around. The next point is make sure you shift linkage is adjested correctly. You could be holding a bit in gear and not completely out. I have see some so bad you can't pull them out of gear when misadjusted.
I'm real sure the shifter/adjuster rod are right. I double checked them with a 1/4 rod going thru the Hurst shifter, and all the rods are adjusted correctly. I've done this a million times. I'm sure it's right but will check it again. The forks are new too. It was part of the rebuild, but I'll look at them again to, when I pull the trans.
Bill, when you pull the trans look at the bearing retainer on the front of the trans to see if it is scarred up. I had one that the throw out bearing was digging into the bearing retainer when the clutch was depressed. I was using a new throw out bearing but it had a very sharp edge on the front where it slid back and forth causing it to dig in. I finally found it when I bought a new trans and could see the gouges when I pulled the trans again. The bad bearing was a TRW, I replaced it with a cheap Chinese one from Auto Zone and havent had any problems.
Ron
I'll look at this too Ron. The bearing retainer is also new, so if it's scratched at all, I'll see it.
:beers:
