Leaking from pinion nut

[MacToolsSVO]

I dont know what the hell I did, but Ive rebuilt my 7.5 twice now and both times it leaks from behind the pinion nut...I looked by the seal, no leaks. Somehow the fluid is finding its way through the pinion splines. Everything is new...I used some fine grit sandpaper to smooth the areas the seal rides on so thats not the problem....I dont get it. Any ideas guys???


Andy

[8T6 SVO]

throw the 8.8 back in......

[Meotchh]

So you've got a leaky nut?

Did you torque it down to spec?

[MacToolsSVO]

yeah...gotta hate that steady drip, drip, drip.....


I have it torqued down to a little tighter than the recommended drag....no difference....

baffled

[Kendal Coker]

put a little silicone on the splines and nut threads and torque it back down. That should seal it.

[Pat_in_L.A.]

^^^^^^

What Kendal said.

[MacToolsSVO]

cool, thanks guys....is this typical? Is my pinion spline worn out?

[Pat_in_L.A.]

It's typical on any machinery application. Anything that involves splines, threads, and liquids will have a path for migration of fluid.

[MacToolsSVO]

thanks for the info fellas....now to get into minutia....what kind of silicone (does it matter?) clear, blue, black...any type of RTV?

thanks again very much!
Andy

[Pat_in_L.A.]

Well, red is better.

Actually, it's orange.