Hink
Overkill Is Underrated
Hey guys, it's been a long time. Happy freedom day! Well, every day is freedom day, but happy one any way. I've been crazy busy for the last several months and have only had time to check in a few times.
I've been dealing with an issue that has finally demanded my attention that I hope you all can shed some light on...
NV4500 transmission, Southbend clutch.
Trans, clutch, fork, T/O bearing, ball pivot, clutch master, slave, and line ALL brand new
Until last year when I put my transmission in, I had never done any tranny work. I don't know why, I thought it took special tools or something (it does to get in the innards, I know) so I had a shop do my clutch work. Well, it's never been right since then.
The main issue was that the clutch fork was rubbing on the ribs of the bellhousing. Has anyone seen this before?
It could be one of three causes that I could think of...
1 - The ball pivot could be worn so much that it caused the whole fork to be closer to the bellhousing. The guy said he replaced it (supposedly) but after only about 6 months, it was wore all to hell so I replaced it (again) when I put the new tranny in. Yes, I lube it regularly.
Or it could have worked its way back on the threads, but it can only move a 32nd of an inch or so until it stops on the front of the tranny.
2 - The throwout bearing could be worn/installed incorrectly. But it was new and I know how to install it.
3 - The clutch fork itself could be incorrect. I actually thought that I had found the issue when NAPA got me one that looked like it had been clearanced from the factory at the spot where it was rubbing. But using that fork didn't solve it.
The result of all this is that after only about 6 months, I started feeling some interference when engaging the clutch and with the added pressure from that interference, the clutch hydraulics blew (again).
I was forced to do what I really didn't want to do and that was clearance the ribs with a Dremel. I really don't like grinding on anything that shouldn't need to be grinded on and certainly not in a spot that is supposed to be strengthening something.
Here are the photos, I hope someone has a solution!
I've been dealing with an issue that has finally demanded my attention that I hope you all can shed some light on...
NV4500 transmission, Southbend clutch.
Trans, clutch, fork, T/O bearing, ball pivot, clutch master, slave, and line ALL brand new
Until last year when I put my transmission in, I had never done any tranny work. I don't know why, I thought it took special tools or something (it does to get in the innards, I know) so I had a shop do my clutch work. Well, it's never been right since then.
The main issue was that the clutch fork was rubbing on the ribs of the bellhousing. Has anyone seen this before?
It could be one of three causes that I could think of...
1 - The ball pivot could be worn so much that it caused the whole fork to be closer to the bellhousing. The guy said he replaced it (supposedly) but after only about 6 months, it was wore all to hell so I replaced it (again) when I put the new tranny in. Yes, I lube it regularly.
Or it could have worked its way back on the threads, but it can only move a 32nd of an inch or so until it stops on the front of the tranny.
2 - The throwout bearing could be worn/installed incorrectly. But it was new and I know how to install it.
3 - The clutch fork itself could be incorrect. I actually thought that I had found the issue when NAPA got me one that looked like it had been clearanced from the factory at the spot where it was rubbing. But using that fork didn't solve it.
The result of all this is that after only about 6 months, I started feeling some interference when engaging the clutch and with the added pressure from that interference, the clutch hydraulics blew (again).
I was forced to do what I really didn't want to do and that was clearance the ribs with a Dremel. I really don't like grinding on anything that shouldn't need to be grinded on and certainly not in a spot that is supposed to be strengthening something.
Here are the photos, I hope someone has a solution!
