the transfer box on my defender is leaking oil through the handbrake drum, and when driving there is a noise when using any amount of acceleration. Only seems to do it in forward gears?
The hand brake is not working as it should, when I took a look at it, the shoes are covered in oil, which is what I presume is causing it not to work.
Its definitely oil from my transfer box, is it possible to use a thicker oil, or something like one shot grease? As per my Dif's and front wheel joints?
The oil leak is certainly through the seal. It's quite possible that it has failed due to the handbrake shoes dragging a bit - which could also be the noise. However, it would be worth checking the propshaft UJ's (particularly the rear front joint) as these can make all sorts of interesting expensive sounding noises.
M'mmm. My 200tdi is also leaking through the handbrake, I had already diagnised seal but above interest me...
Before I recently (maybe 3 or 4 months ago) put new shoes on the handbrake I had no oil leak. New shoes did drag a bit to start with, the drum got *hot* to touch but have now warn down and handbrake currently works ok, BUT I have an oill leak...
So, is it the heat build up that affects the seal or something else?
As i have the handvbrake to strip down again to replace the seal I dont want to make the same mistake again when I put it back together!
Somebody told me that the hand brake drum is balanced, and if re-fitted the wrong way round can cause problems. I recently moved the drum round whist I had "again" got is stripped down, and now the oil leak seems to have stopped??
Maybe a coincident, but I am happy (at the moment)
On or around 1 Mar 2005 11:15:17 -0800, "andy" enlightened us thusly:
I'd expect the drum to be balanced, like anything else that spins, true, but for it to be balanced after bolting it to the gearbox output shaft beggars belief.
's like propshafts. The propshaft is balanced, as a unit, off the vehicle. It shouldn't make any difference which way round it's put on.
The only difference with propshafts is the thing about flange angles, one related to the other, and where that's critical they should have alignment marks. Anything that really matters which way round it's fitted has some form of asymmetric mounting or dowel to align it.
The handbrake drum is balanced but as it locates over the propshaft bolts it can only fit on one way. So you can't get it wrong.
you don't need to take the shoes of to do the seal.
Remove the pin on the linkage and there are four bolts that hold the handbrake back plate shoes and all. Remove this in one lump.
good luck
-- Marc
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