[Healeys] removing the rear bearing.

[Oudesluys]

  The leaking of rear axles is often caused by a blocked air vent. I am 
not sure if such a vent is present on the AH axles, but most if not all 
LBC axles do have a small hole in the upper regions of the cast housing 
which gets blocked by dirt, paint, rust. It can be a dog to find that 
hole. Some have a tapped hole in which a small one way ball valve is 
fitted. This valve can become stuck because of dirt or corrosion.
This air vent takes care of excess air pressure when the axle heats up, 
thus preventing oil being pushed past its seals.
Kees Oudesluijs
NL

[demime 1.01d removed an attachment of type text/x-vcard which had a name of coudesluijs.vcf]