Jeff in VA
August 9th, 2006, 09:53
I didn't get any response to this on the Other Tech forum, so I'm gonna try here :laugh3:
This weekend Chuck (cmcolfax), Jerry (tjbliley), and I did an auto-to-manual swap on Chuch's 95 (I think) YJ ->30RH (or something like that, 3 spd auto) to AX5. Got all the hardware in, Jerry figured out how to jump the NSS, and got it fired up. Starter seemed to “knock” a bit when spinning, so we adjusted it (no shims) and that cleared up for the most part. But the big problem is that the clutch is slipping BADLY, like it’s barely contacting the flywheel. No power getting to the gearbox, and at idle in neutral, it will eventually start lightly smoking. Flywheel, clutch master and line, and tranny all came from the same vehicle, and the clutch assembly (internal throwout) is brand new and the correct part #. TO is bled to spec, and the master is working correctly. Good pedal, and it pushes fluid well.
One thing I can immediately think of is that Chuck had the flywheel machined, and maybe the shop took off too much…..but it didn’t look any thinner than my flywheel which was machined also. Another possibility is that the TO is hanging up (partially expanded) inside the bell, and is pushing on the fingers in the clutch cover. And lastly, there was a machined spacer on the back of the crank when we pulled the auto off that must have spaced the flexplate/tone ring out fir it all to line up….we didn’t reinstall it, because the donor rig didn’t have one and my MJ didn’t have one….the flywheel bolts directly to the crank-end in both cases. Chuck is gonna throw some pics up of the spacer sometime today, or send them to me and I’ll post them for view. We don’t really think that is the issue, because the problem is excessive clearance in the pressure plate/clutch disc/flywheel area, not flywheel to block.
Bottom line is that it all has to come back apart, but we’re trying to figure out what to look at when we do (won’t be for a few more weeks). Anybody have any ideas? Couple other folks (not on here) think maybe the clutch disc is in backwards. I've never installed one backwards so I don't know what the symptoms would be.....anyone else think that's the problem?
TIA,
Jeff
This weekend Chuck (cmcolfax), Jerry (tjbliley), and I did an auto-to-manual swap on Chuch's 95 (I think) YJ ->30RH (or something like that, 3 spd auto) to AX5. Got all the hardware in, Jerry figured out how to jump the NSS, and got it fired up. Starter seemed to “knock” a bit when spinning, so we adjusted it (no shims) and that cleared up for the most part. But the big problem is that the clutch is slipping BADLY, like it’s barely contacting the flywheel. No power getting to the gearbox, and at idle in neutral, it will eventually start lightly smoking. Flywheel, clutch master and line, and tranny all came from the same vehicle, and the clutch assembly (internal throwout) is brand new and the correct part #. TO is bled to spec, and the master is working correctly. Good pedal, and it pushes fluid well.
One thing I can immediately think of is that Chuck had the flywheel machined, and maybe the shop took off too much…..but it didn’t look any thinner than my flywheel which was machined also. Another possibility is that the TO is hanging up (partially expanded) inside the bell, and is pushing on the fingers in the clutch cover. And lastly, there was a machined spacer on the back of the crank when we pulled the auto off that must have spaced the flexplate/tone ring out fir it all to line up….we didn’t reinstall it, because the donor rig didn’t have one and my MJ didn’t have one….the flywheel bolts directly to the crank-end in both cases. Chuck is gonna throw some pics up of the spacer sometime today, or send them to me and I’ll post them for view. We don’t really think that is the issue, because the problem is excessive clearance in the pressure plate/clutch disc/flywheel area, not flywheel to block.
Bottom line is that it all has to come back apart, but we’re trying to figure out what to look at when we do (won’t be for a few more weeks). Anybody have any ideas? Couple other folks (not on here) think maybe the clutch disc is in backwards. I've never installed one backwards so I don't know what the symptoms would be.....anyone else think that's the problem?
TIA,
Jeff