pinion oil seal leak

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he trys hard
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pinion oil seal leak

Post by he trys hard » Sat Oct 28, 2017 9:05 pm

hi recently had a leak from pinion oil seal which after a couple of attempts at getting correct seal was replaced and repaired but I still have a leak with new seal fitted ,could it be that I need to replace the flange ? which did have a wear mark where the old seal had been running. if so are these available as spare? any advise/ ideas much appreciated thanks ian



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pinion oil seal leak

Post by Diyhell » Sat Oct 28, 2017 9:16 pm

I've done two on my SE6A (replaced axle) and both had some wear but sealed fine after replacement.

There is the elusive breather hole on my type, which I read can lead to an over-pressurising of the axle and oil being pushed out if its blocked. Not sure if it's the same on your axle?


SE6a needing lots of work...

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peter freeman
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pinion oil seal leak

Post by peter freeman » Sat Oct 28, 2017 9:23 pm

Are you sure its leaking at the flange (inner) and not from the outside of the seal - I put a bit of blue on them when fitting. The flange can be put back to original dims at a good metal shop.



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pinion oil seal leak

Post by he trys hard » Sat Oct 28, 2017 9:28 pm

yes have unblocked the breather prior to seal replacement unless there is another mine was on the right hand axle tube viewed from rear? , it was blocked solid when I found it lol



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pinion oil seal leak

Post by he trys hard » Sat Oct 28, 2017 9:32 pm

no I'm not sure where its leaking from peter, I did consider this was very snug fit maybe start here with new seal . how is the flange brought back ?



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pinion oil seal leak

Post by scimjim » Sat Oct 28, 2017 9:39 pm

I recall someone sleeving the pinion flange - maybe Christian (Pepe)?


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pinion oil seal leak

Post by peter freeman » Sat Oct 28, 2017 9:39 pm

They turn a bit off then sleeve it - obviously the sleeve has a outside dimension same as the original outside dimension/



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pinion oil seal leak

Post by scimjim » Sat Oct 28, 2017 9:51 pm

Speedi sleeve - pics here


Jim King

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
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1300 SS1 (Number One) & Sarah's coupe.
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pinion oil seal leak

Post by he trys hard » Tue Nov 21, 2017 10:48 pm

ok so speedi sleeve fitted many thanks for the link ...but still have small drip after a run grr! . so is there more than one vent hole in diff/axle found the one right hand axle tube looking from rear just thinking its over pressurizing maybe ? all dry whilst parked up. any help appreciated



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pinion oil seal leak

Post by scimjim » Tue Nov 21, 2017 11:00 pm

Only one vent - is it still leaking from the nose after a sleeve and new seal?


Jim King

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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pinion oil seal leak

Post by peter freeman » Tue Nov 21, 2017 11:02 pm

I had one where the oil came up the thread - you would not think it would get out but it did.



he trys hard
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pinion oil seal leak

Post by he trys hard » Wed Nov 22, 2017 7:39 pm

yes still leaking after fitting sleeve didn't replace seal again as it only ran about 5miles on new seal prior to fitting sleeve,i did read somewhere peter that it was possible for the oil to come back the spline and out behind nut and washer what is the best way to prevent this?



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pinion oil seal leak

Post by Coupe Racing » Wed Nov 22, 2017 8:18 pm

Have you fitted the rubber type radial oil seal or the leather type


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he trys hard
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pinion oil seal leak

Post by he trys hard » Wed Nov 22, 2017 8:29 pm

Coupe Racing wrote:
Wed Nov 22, 2017 8:18 pm
Have you fitted the rubber type radial oil seal or the leather type
later rubber type from gw's



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pinion oil seal leak

Post by peter freeman » Wed Nov 22, 2017 8:46 pm

he trys hard wrote:
Wed Nov 22, 2017 7:39 pm
yes still leaking after fitting sleeve didn't replace seal again as it only ran about 5miles on new seal prior to fitting sleeve,i did read somewhere peter that it was possible for the oil to come back the spline and out behind nut and washer what is the best way to prevent this?
I wrapped the thread in plumbers tape - not a lot needed and it cured my leak.



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