[Fot] Leaky Pinion seal

[Scott Janzen]

I did put a speedi-sleeve on it - good tight fit, with some permatex under it to make sure that didn't leak - as the surface had some wear marks.  I marked everything and re-assembled as it was to maintain the same pre-load; the diff was removed from the car so this was not difficult to do, and there was no wobble - i.e., the preload setting was good.  I'll check to see if it was migrating from the nut - interesting possibility, though I'm pretty sure from the visuals that it is at the seal.
Using Redline gear oil, 85 weight.

On Jun 8, 2015, at 11:31 AM, Chip Collingwood wrote:

Scott,

How was the sealing surface on the front flange? If that is damaged or is worn then a speedy- sleeve might help. Also possible is I have seen leaks from the behind the pinnion nut...oil migrates up the shaft past the splines and out from behind the nut and washer...assembling with a little silicone helps this. Did you get the flange back on in the same attitude as it was before dis-assembly....in other words did you mark the flange and shaft and tighten the nut to the same spot....this is what sets the pinnion pre-load and depth

Chip Collingwood
theukmotorsports.com
(804) 564-1839

On Mon, Jun 8, 2015 at 11:11 AM, Scott Janzen <sjanzen at me.com> wrote:
I had a leaky pinion seal on the GT6 differential, and figured I had remedied it by putting in a new seal and a speedi-sleeve this winter.  Guess what?  It's leaking more than ever.  

Any thoughts on a better fix?

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