Hi. I have a howling noise coming from my ZF 4 Speed in my 1970 2800. The transmission shifts fine but when in Neutral and the clutch not depressed, the transmission make this howling / whirring noise. Press the clutch in, the transmission stops spinning and the noise goes away. Let the clutch out, and the noise comes back.
The car had sat for a very long time (17 years) and I'm just about finished with the mechanical restoration. I would like to focus my attention to this transmission issue (transmission is out of the car at the time) before I reassemble everything.
I would like to keep the old girl stock and not have to upgrade to a 5 speed, but if parts (a bad bushing I'm assuming) for the Type 1253 are not readily available, I will consider a swap.
Please let me know if you guys can share your thoughts on the source of the noise and remedy. Also whether I should think about a 5 speed upgrade at this point.
Thanks,
Mark
The car had sat for a very long time (17 years) and I'm just about finished with the mechanical restoration. I would like to focus my attention to this transmission issue (transmission is out of the car at the time) before I reassemble everything.
I would like to keep the old girl stock and not have to upgrade to a 5 speed, but if parts (a bad bushing I'm assuming) for the Type 1253 are not readily available, I will consider a swap.
Please let me know if you guys can share your thoughts on the source of the noise and remedy. Also whether I should think about a 5 speed upgrade at this point.
Thanks,
Mark