Why is my rear end over pressurizing?
02-22-2010, 12:14 AM
#1
Why is my rear end over pressurizing? My Moser 12 Bolt with a Detroit Locker in my 01 Camaro was getting pressurized and blowing fluid out the overflow tube, axle bearings, etc... especially the pinion seal.
Anybody have any ideas why the axle might have been over pressuring?
I first took off the pinion yoke to change the seal because the most fluid was leaking from it. When I removed the drive shaft I noticed that there seemed to be excessive backlash when I rocked the pinion yoke, so I pulled the axles and removed the carrier today and every seal looked good, even the pinion seal, I never did find a smoking gun.
I am going to replace both pinion bearings and races and the seal.
Should I replace the axle seals? They look great.
If the pinion bearings were worn would that slop be enough to pressurize the rear end this much that it was blowing gear lube out everywhere?
Could the gear oil just have been shot?
Anybody have any ideas why the axle might have been over pressuring?
I first took off the pinion yoke to change the seal because the most fluid was leaking from it. When I removed the drive shaft I noticed that there seemed to be excessive backlash when I rocked the pinion yoke, so I pulled the axles and removed the carrier today and every seal looked good, even the pinion seal, I never did find a smoking gun.
I am going to replace both pinion bearings and races and the seal.
Should I replace the axle seals? They look great.
If the pinion bearings were worn would that slop be enough to pressurize the rear end this much that it was blowing gear lube out everywhere?
Could the gear oil just have been shot?
02-22-2010, 04:44 AM
#2
The vent is plugged with something or the check valve is stuck if it has the new one way vent valve. Thats about all that can cause that if its a preasure problem. If its a seal problem you will have to dig in further for the problem. Hope this helps good luck Tom
02-22-2010, 05:13 AM
#3
My Moser 12 Bolt with a Detroit Locker in my 01 Camaro was getting pressurized and blowing fluid out the overflow tube, axle bearings, etc... especially the pinion seal.
Anybody have any ideas why the axle might have been over pressuring?
I first took off the pinion yoke to change the seal because the most fluid was leaking from it. When I removed the drive shaft I noticed that there seemed to be excessive backlash when I rocked the pinion yoke, so I pulled the axles and removed the carrier today and every seal looked good, even the pinion seal, I never did find a smoking gun.
I am going to replace both pinion bearings and races and the seal.
Should I replace the axle seals? They look great.
If the pinion bearings were worn would that slop be enough to pressurize the rear end this much that it was blowing gear lube out everywhere?
Could the gear oil just have been shot?
Anybody have any ideas why the axle might have been over pressuring?
I first took off the pinion yoke to change the seal because the most fluid was leaking from it. When I removed the drive shaft I noticed that there seemed to be excessive backlash when I rocked the pinion yoke, so I pulled the axles and removed the carrier today and every seal looked good, even the pinion seal, I never did find a smoking gun.
I am going to replace both pinion bearings and races and the seal.
Should I replace the axle seals? They look great.
If the pinion bearings were worn would that slop be enough to pressurize the rear end this much that it was blowing gear lube out everywhere?
Could the gear oil just have been shot?
02-22-2010, 11:43 AM
#4
How can you fill the axle up higher than the fill plug??? the vent is on the top of the axle. If you could fill it to much how is that accomplished??? And what back lash do you refer to???????
02-23-2010, 06:37 AM
#6
The actual fill hole and oil level hole is on the front passenger side of the rear end diff. The plug is hex so you will need a pretty big hex Allen wrench or drive adapter with a hex head to remove the plug. Bob