problem again , about leaking half shaft bearing

[filh]

I have another problem that I can't solve for now :
I have a leaking rear half shaft bearing !
It's so simple to change . So did I , but after one km it was leaking again !
I checked everything and foung nothing . The bearing is that as described in manual 2mm in . Gaskets are on , and I used a lot of sealant . But can't stop that oil leak .
Did you experienced that before .
Is there a solution?
Thanks

[jondee86]

Did you replace the oil seal ??

Cheers... jondee86

[filh]

Damn , I just use the wrong word I wasn't speaking about bearing , but about oil seal .
So to resume , I changed the oil seal (no bearing change ) from the rear axle shaft . I set it as it's requested in the workshop manual ( 2mm inside)
and it's leaking .
The oil seal is in contact with the bearing retainer . I use a lot of sealant , all gaskets are new and on , and it leaks . Just drove 2km and it's leaking again ! The oil level is correct too....

Phil

[totta Crolla]

Check the breather on the top of the axle casing is clear and working.
Check for a 'groove' in the part of the shaft that goes into the oil seal.
Good luck with it.

[filh]

Breather is free (unclogged) .
The oil seal is not in contact with the shaft , it's the bearing retainer which turn inside oil seal lips .
I have an idea I must check , and will leave feedback if I found the cause
Phil

[totta Crolla]

Ah yes Phil just could'nt remember which part of the shaft/bearing ran in the oil seal.
I have seen grooves worn into a crankshaft by an oil seal, changing the seal made no difference to the leaking at all.

[filh]

I though about grooves made when removing bearing. So , I hold the shaft vertical and poored some petrol on retainer . But I couldn't see anyting coming the other side .
Now I'm the fastest rear half-shaft remover from Europe ....


Phil

[panda_tureno86]

got pics?

[filh]

pics? I don't have about that leak....

[jondee86]

filh Wrote:I though about grooves made when removing bearing. So , I hold the shaft vertical
and poored some petrol on retainer . But I couldn't see anyting coming the other side .
Now I'm the fastest rear half-shaft remover from Europe ....Phil

There are only three ways oil can get out...
1. Between bearing retainer and shaft. If the shaft has deep scratches or
grinding marks from taking the old retainer off, then oil could seep thru.
But you checked this with petrol and nothing leaked thru.
2. Between the seal and the retainer. Lip seal damaged by axle splines
while fitting, or groove in sealing surface. Check the seal lip with a
magnifying glass to see if there are any nicks or cuts. Usually you can feel
them if you run your fingernail around the lip. Make sure the tensioning
spring is inside the seal.
3. Between the seal and the housing. Look for deep scratches in the
housing or any damage to the seal caused during installation.

Cheers... jondee86