Thread: TD5: Oil on back of rear brake disk

Your hub seal is leaking.

So is the oil leaking out of the rear diff then? The actual hub won't be affected?

I am right in thinking that this is an ok job to fix?

Cheers

Andy

Andy,

I guess you have a Disco then? If so the hub is usually the culprit, not the O ring. Usually the inner seal goes and the diff oil washes the grease from the hub bearing out to the disc etc. The bearing is non replaceable, the hub has an integral ABS sensor ring and bearing and a new hub will be required. The O ring is very rarely the problem unfortunately, the sticky black stuff is actually the hub grease from INSIDE the hub as oil isn't a problem for the bearings life span, it won't FAIL, but the oil, as you noticed, gets all over the brake pads eventually. As the Oring is only an outer seal to the axle housing is possibly not the issue in this case. I recently had to replace a PAIR of rear hubs on one D2 because they wouldn't stop leaking.
Also, check the diff breather.

Warning, new hubs DO NOT come with a new O ring, so make sure you order one when getting a hub.


JC

Yeah hub seal leaking, happened on my brother in laws.

Angus

hub seal failure if you already have the oil fed bearing converson

hubs seal and stub seal failure if you dont.

In my case they forgot to install the stub seal.

Originally Posted by justinc

Andy,


Also, check the diff breather.


JC

Thanks for the info guys.

Sounds pretty grim then if I need a new hub! There's a slim chance though that the diff breather could be blocked and blowing oil past the seals?

How do you check the diff breather? I've seen it on the RAVE diagram. Is it just a no brainer, checking for dirt at the breather outlet?

Cheers

Andy

Please just note that some of the responses above do not relate to the Disco2 axle.

My D2 is having exact same problem same side. found it when I replaced all the rotors and pads. I degreased it and left the old pads in for the time being .

Should I replace the hub on the other side and the front as well. This vehicle has now done 130,000ks. I recently decided (due to the current economic climate) to keep the old girl for a few more years .

*Does any one know many K,s I should get out of a clutch dont drive it hard.
*How will I know when that front drive shaft starts to go.
*How much are the hubs worth each and a clutch kit?

Once the above work is done I will feel a lot more confident to travel off the beaten track.

Mike