91 240sx extreme manual transmision vibration.

[Lost_In_Translation]

Hi I hope someone can help me with this problem. The problem is that when I try to move my car in first gear there is a very strong vibration all over the car,I'm pretty sure it's not and engine misfire or something like that cause you can really feel the vibration.

Furthermore when the vibration is on the rear wheels start jumping up and down a bit... It could be a mount but the car only does it in first gear I can take off in second and there is no strong vibration..so there it is any help is greatly appreciated.

[Lost_In_Translation]

Any Idea?

[torque87]

I am having the same problem in my 92. mine does it off and on, anyway a few thories i've been told are flywheel going bad, transmission mounts, or moisture on the clutch from humidity. I'll keep asking around and do some looking myself if i ever get a day off.

[Lost_In_Translation]

Thanks for the suggestion.. I'm not really sure what the problem is but I dropped the transmission and found out that the car has no pilot bushing and the flywheel looks weird it has a shiny mark at the edge of the clutch engagement area I'll take it to a machine shop to see what they say..hope I can fix the problem soon I really need the car for college. here is a pic of the flywheel.