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Join Date: Aug 2007
Location: Melbourne, Australia
Posts: 91
Garage
Leaking axle

I had a leaking axle few weeks ago. Gearbox oil was leaking on the inside of the left wheel
I put a new axle seal kit through it and it has been good till this morning when I noticed what you see in the picture after 30 minutes of highway driving
This time its leaking from the outside of the wheel
What's going on it? Axle nut needs tightening further or something else?
I used a rattle gun to tighten it

Thank you
Old 08-28-2017, 04:21 PM
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Join Date: Feb 2003
Location: Bend & Kailua
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It appears that an O-ring in your axle seal kit has failed ..
Old 09-04-2017, 08:43 AM
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Join Date: Jul 2003
Location: Back in B'ham, AL
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You need about 400# for that nut... doubt it an air gone can go that high.

I like your wheels.
Old 09-11-2017, 03:29 PM
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Join Date: Mar 2008
Location: SW Ohio
Posts: 17,661
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The nut wasn't tight enough. Clean it up. Tighten it properly, and you'll likely be OK.
Torque it to at least 350lbft. I've seen recommendations all the way up to 400lbft. Rattle gun isn't going to get it.
I use a breaker bar with a piece of pipe on it to extend it. Calculate where your body weight on the bar will equal 350 or so (350/your weight = X, where X is the distance between the center of the socket and a point on the breaker bar in feet). If the cotter pin holes don't line up, tighten it until they do.
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Old 09-17-2017, 06:11 AM
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I've had a ton of grief with leaking rear hubs. See my EP80 on the garage floor tale. For the minimal expenditure I would recommend you fit a new seal kit after cleaning everything and then a smear of permatex on the bearing cover surfaces and on the exposed splines prior to refitting the drum will go a long way to curing this problem. I know it's not the correct Porsche way but the sealer is a belt and braces deal. And as WD said do the axle nut up to 400lbs ft, I used a three foot scaffold pole with a 3/4 socket then tightened it further to get the split pin holes lined up. Job done.
Old 09-18-2017, 10:47 AM
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