Spinning up a transmission on the bench
Anyone have any ideas on how to do this? I just swapped out my transmission for a used one because I was getting a horrible driveline whining noise, but I now suspect it might have been the driveshaft center bearing. I suspected it was the transmission because I accidentally ran it low on oil after installing the output shaft seal wrong, but when I pulled the fill plug the fluid looked alright and there wasn't much on the magnet (some metal dust, but not much).
I'm wondering if there's a way to spin up the transmission without making so much noise that I wouldn't be able to hear the transmission. I tried using an air drill w/ a paper buffer on the input shaft (the only drill I have that will fit on the pilot diameter) but it was too loud. Tried throwing an old clutch plate on there and spinning it using a rod through one of the holes but I couldn't get it going fast enough.
I'm trying to decide whether I should pull it apart and check all the bearings, but I'd rather not if I don't need to.
Anyone have any ideas?
Last edited by Duct_Taper; 03-11-2009 at 10:00 PM.