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Oil leak again please help

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Oil leak again please help

Right sump came off again and I've now fitted a spangly new VW rubber gasket. Got a new torque wrench so the bolts are to the spec.

All going good I thought until I warm up the engine and there is oil leaking down from above the sump from the cam belt end towards the front of the car.

Any sugestions where to look next???? Please help…… :banghead:  :dontknow: and tell me it might be simplar than the cam belt oil seal.

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take the cambelt cover off and check the seals or even the rocker gasket

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Right well changed the rocker gasket not so long ago with a new VW rubber one and torque up the bolts with me new wrench so shouldn't be there.

But will get the cam belt cover off and have a look in the next day or so and see what I can see. If its coming from in there does it mean big job????

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Hey smithsmoo, at least it not the same place, good luck in finding it, I have't even sorted the sump and rocker yet :doh:

Golf GTI Cabriolet 1990 Helios Blue - gone

Audi A4 1.9TDI - Gone :(

Golf GTTDI MK5 140…..oooh quick….but not a MK1  ;)

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Well I'm hoping I ain't just replaced a sump gasket for nothing.  :cry:  Will keep you informed, but I'm guessing sump and rocker was the easy options out the way. According to Mr Haynes everything from here on in looks a bit scary. :twisted:  :banghead:

Any help, inspiration words of wisdom appreciated.

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now ypu have a torque wrench the world is your oyster! It's not that bad once you get stuck in! Good luck on finding the leak!

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Cheers Bengti, any other helpful snippets or ideas. 8)

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checked around the oil filter?

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Don't think its leaking from the filter as the oil always seams to be on the floor over the other end towards the cam, but anything is possible so will have a good look round.

Funny when I looked under drivers side, the wishbone, drive shaft etc is covered in oil other side is bone dry. Suppose at least they ain't going to rust.

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It could be the cam seal, intermediate shaft seal, or crank seal, all of which are identical. They aren't the worst to change with the engine in the car - the cam one is up top (easy enough), the intermediate one is in a bolt-on ring, so you can change it when it's out of the car, and the crank one is only a pain if you don't have a lift for the car.

However, the leak could also be (is probably) coming from the paper gasket under the cast-alloy holder for the crank seal, or the O-ring for the intermediate shaft holder may have failed (less likely).

You can access all of these if you remove the pulleys that hold the timing belt - make sure that you set the engine to TDC (top dead-centre) before you start.

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Sounds like I better get the cam cover off an have a quick look around see if I can see where its coming from.

Then better get studying the Haynes. How easy is it to change the paper gasket thingy under the cast alloy holder???

Cheers for the info.

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Think it may be the intermediate one, although still trying to get the bottom cover off. Any advice on changing it???

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Sorry for delay, I was away from home (and the internet) on Business.

The paper gasket is easy to change in itself, but there is a fair bit of stuff to remove before you can:

ensure the engine is at TDC at the crank AND cam - crank goes around twice for every one rotation of cam & intermediate shaft, so it's possible to  only check the crank and have the cam 180 degrees out

remove the v-belt pulley wheel at the crank (4 allen bolts, 6mm, likely to be rusty, etc, so clean out the hex-hole well, to give your key the best chance to seat itself properly, and open the bolts with a sharp jerk, rather than just pulling hard, which will round out these bolts)

then you can remove the lower plastic cam-belt cover (last bolt is hidden by above pulley)

You then remove the cam-belt itself (ensure the engine is still at TDC at the crank AND cam)

You might then need to temporarily refit the v-belt pulley, so you have something to  hold the crank with, while you open the large bolt to remove the cam-belt pully on the crank (or you could remove the starter and jam the flywheel teeth with a large, hard screwdriver)

Then you can remove two sump bolts and the other ones that hold the cast-alloy crank-seal holder (note the positions of the bolts as you remove them, some are different lengths)

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Cheers mate, well going to get the lower cover off and see if I can see where its coming from, If I can then going to decide whether to tackle this job after I've phoned local freindly garage for a quote first.

Cheers for all info.

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Right lower cam belt cover off and it looks like its leaking from the intermediate shaft bit.

What I can see is that the oil seal behind the wheel slightly protrudes out of the flange. Is this correct as I've pushed the bottom part of it back in but am struggling to do the same at the top. Please let me know. Could it be seemly that the oil seal has come out of the flange in which case I'm going to try and push it back in without taking the wheel off.

Also not sure how to line the TDC as the bottom fan belt pulley don't seem to have a noticable notch in it. to line up with the punch mark.

Look forward to hearing from you mate thanks for all the help.
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