O

ormondstreet

Active Member

• Aug 1, 2007

• #1

whilst checking the front brakes on my 90TDi I thought I would have a look behind the plastic cap on the end of the hub. Wish I hadn't, the cap was about 1/4 full of black oil and oil was slowly seeping from the centre (threaded) hole. I checked the other side and that was just the same? is this normal?

 

S

slob

Well-Known Member

• Aug 1, 2007

• #2

no, what you probably got is old brake fluid. you'll need to do a complete fluid change . the reason the nipples are leaking might just be because they int tight enough or it could be that they are corroded. while yer at it check the rest of yer brakes fer wear and other leaks

 

O

ormondstreet

Active Member

• Aug 1, 2007

• #3

it's not me brakes, it's comming from the centre of the hub, from the threaded hole right in the middle.

 

S

slob

Well-Known Member

• Aug 1, 2007

• #4

oooo! so i see.. must had a moment there and missed that bit.. just see the 'checkin brakes bit ' and jumped reet in

 

Pikey

Dummy Ejection Facilitator..

• Aug 1, 2007

• #5

Sounds like the Hub seals have gone. that or there's pressure built up in the diff and it's forcing the oil ppast the seals.

 

Griffdowg

New Member

• Aug 1, 2007

• #6

check your breathers aint blocked, if they are clear, looks like your going to have to replace the hub oil seals. that oil is ep90 from your axles/diff casing.

drain the axle, replace seals, fill axle back up.

G

 

S

slob

Well-Known Member

• Aug 2, 2007

• #7

do you have to drain the axle to do yer hub seals?

 

Pikey

Dummy Ejection Facilitator..

• Aug 2, 2007

• #8

Probably. cos when you take the seals out the oil is gonna leak out. I think. Possibly.

 

GRUNT

Well-Known Member

• Aug 2, 2007

• #9

There are seals at the end of the axle before the swivel housing and in the hub. If there's oil in the swivel not grease then it could be either seal if theres grease in the swivel then it's both seals. If it's just the hub seals the diff dunt need draining if its the halfshaft seal the hub will need draining. If oil int leaking passed the swivel seal or out the end of the driving member just make sure the diff is topped up an ferget about it till you've time or the swivel starts leaking.

 

HybridGirl

New Member

• Aug 2, 2007

• #10

GRUNT said:

There are seals at the end of the axle before the swivel housing and in the hub. If there's oil in the swivel not grease then it could be either seal if theres grease in the swivel then it's both seals. If it's just the hub seals the diff dunt need draining if its the halfshaft seal the hub will need draining. If oil int leaking passed the swivel seal or out the end of the driving member just make sure the diff is topped up an ferget about it till you've time or the swivel starts leaking.

Click to expand...

Int there only one seal on either side of the front axle? I'm sure there is on mine. Deff two on either side on the back axle. Cos I did em.

 

GRUNT

Well-Known Member

• Aug 2, 2007

• #11

There's a seal on the half shaft at the end of the axle and one in the hub. spose it's easier to say one either side of the swivel. So you've got the axle and diff with EP 90 in then yer swivel with EP90 or grease, then yer wheel bearings with grease.