Clutch problem non-Chevelle
Ok guys, this one really has me stumped. Vehicle is a 2007 Jeep Liberty, 3.7L with a 6-speed manual transmission. The throw-out bearing blew apart and while I had the trans out, I replaced the throw-out bearing, clutch, and pressure plate. I forgot to order a new pilot bearing but since this happened the beginning of the week when Dorian passed through, I couldn't get the part and my son needed his car for work. I did my best to inspect the bearing and everything seemed fine. Checked the clutch and pressure plate against the old ones before replacing and they seemed to match up perfectly. Even double checked the part numbers to make sure I got the correct parts.
After putting everything back together there was an issue. I could only shift through a couple of gears before it would stop working. Figured maybe the hydraulic clutch assembly was bad and was slowly leaking down, so I ordered a new master cylinder/slave cylinder assembly. Installed that this weekend (bled the system as instructed) and now the transmission won't go into gear at all. It will go into gear as long as the engine is off, but once it is running, no luck.
I have a bore scope so I drilled a small whole (5.5 mm) in the side of the bell-housing (there is no inspection access) and was able to observe the clutch movement. Everything looks fine. I can see the fork moving and the clutch depressing. Did this both with the engine off and with it running. Looks like they are moving the same distance. Called a friend who works for a dealership and does a fair amount of manual trans work. His only suggestion that possibly the crank thrust bearing was bad and depressing the pedal was causing the crank to walk. He said it was a long shot, but I checked anyway. Doesn't appear to be any movement.
I am totally stumped! Any suggestions?