Monday, August 22, 2011

Replace leaking output flange seal

So a while ago (2008) I replaced my clutch with a SBC stage 3 and Valeo G60 single mass flywheel.  Incidentally, I don't recommend using this combo as there is clearly some sort of clearance issue with the clutch fork.  Anyway, I won't get into that in this post.

Due to a small mishap I had with the transmission when I was lowering it out of the car, I damaged the output flange seal on the passenger side.  This is the seal where the drive shaft connects to the transmission.  I replaced only the seal, and it lasted a little over a year before it started leaking tranny oil.  I have arrived at the conclusion that the sleeve was also damaged.

After a year or so of letting it slowly leak, it's finally time to do something about it.  I purchased the entire output flange seal sleeve assembly (with the seal in it) from  I highly recommend getting this part if you ever have to replace the output flange seal.  It's well worth the extra $10 or so, and not that much more difficult (possibly easier?) to install.

The Bentley manual says that the output flange and seal on the passenger side can be removed simply by unbolting the drive axle and rotating the steering wheel all the way to the right.  However, I found this to be incorrect.  I followed the procedure for the left hand side, unbolting the steering knuckle and swung out the wheel bearing housing, and then had plenty of room to do what I needed.

As I jacked up the car, I noticed the oil spilling out of my rear shock.  Looks like I know what the next chapter in vehicle repair will be.

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