quinntard

Wow. It was just so sudden. Thanks for the help. I'll see what i can do this weekend

AO

Mine went like that too after a session at the dyno. My guess is that in my case, the carriers were slowly shifting for some time, and at some point finally reached a position where the resonance was "released" making it appear that it happened all of a sudden.

Eric Buckley

Replacing the bearings in the TT yourself will consume the least dollars. If you take your time and do a thorough job it should be a fairly durable fix too. There are easier (buy rebuilt TT from 928 Intl.) and better (Constantine "super bearing") approaches, but I did the bearing replacement myself some years ago and it has remained vibration-free for quite a number of years, which have included many DE weekends. You can find my experiences documented on the Nichols tips site at:
http://www.nichols.nu/tip814.htm

quinntard

Thank you. I'm just going to do like you said and just replace the bearing myself, and go ahead and replace the clutch while i have it all apart haha

daveo90s4

If using the normal bearings you could consider installing some small 'grub screws' into the torque tube fore and aft of each bearing carrier to prevent any future migration

davek9

Yep if not using Constantine's "super bearing" then you will be using 20 ++ something old rubber and it is most likely shot and they will move unless you "pin" them in place, especially when that balance weight starts moving

And that's another nice feature of Constantine's produce, no balance weight required, AO recently drove my '86.5 Auto after I did the TT job and commented on how smooth it drove.