Cam's easy, but for the crank you need the engine out. Crank pulley will need the serpentine belt removed, not the easiest job job in itself, but the flywheel end is likely to need attention too.
You don't say which car this is in - the RWD layout of, say, the Omega, means you could do the crank pulley relatively easily, though from memory it will take the skin off your knuckles removing the ancillaries round it, especially if aircon is involved. You'll find it easier with the rad out. However if it's transverse, forget it unless you're taking the whole lump out.
Thanks guys - the car is a Cavalier CDX by the way.
I was only really looking at the cambelt end - that seems to be where most of the leaking is from. Serpentine belt will be off for the belt change anyway - surprised you say that's hard. OK, so I have to remove an engine mount as the aircon models have the belt going round one, but not overly difficult. I have changed it in the past without too much hassle.
Plan is to keep the old girl going for some time yet, so would prefer to cure the problem rather than temporally fix it with Forte etc.
Yes - even fitted the upgraded filter to prevent sludge from the crankcase return line. Engine is clean other than that end of the engine. It's clearly leaking from somewhere under the cover - suspect the seals. Just a pain, because it then drips onto the exhaust....
No - I cured that one eventually with a decent new gasket and a tube of Hylomar. ( e-bay cheap ones seemed to be just that, and after a couple of futile attempts I paid for an OE which worked )
I take it you have to be able to get to the seal to use this? I've got a leaking rear crankshaft seal, but given the work required to get at it, it doesn't seem to be worth fixing...
Are you sure it's not the rocker cover gasket? This hardens with age and heat from the engine and begins to leak. With oil leaks, it can be hard to be sure where they are coming from.
Did this on a 1995 2.0 Ecotec a couple of years ago, although it was leaking from the other end, where the plug leads pass through the well cover. Also leaked inside the well, so the plug holes were full of oil.
Rocker cover lip is totaly clean, with no seepage at all now. Leak is coming from behind cam belt area somewhere. I have a full seal set, so figure I may as well have a go.
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