[BOB968]

My 968 drips oil. I have read quite a bit about rear seal leaks. I am no wizard at this stuff but I know the rear seal is at the back of the engine/oil pan and if it leaks, the back of the pan and the bellhousing are most likely to be wet. Recently I crawled under the car and inspected  the rear of the oil pan and the bellhousing. They were  not wet with oil. I have not yet removed the plastic shield under the engine. If the oil is not coming from the rear seal, then what are my most likely areas to look at. Valve cover gasket was recently replaced.

 

I appreciate all contributions. Thanks in advance.  

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[Grandpa#3]

The Balance Shaft Rear O-Ring Seal will leak. Not the proper way,, but some people will use an oil proof sealant and just smear it on with their finger after it has been cleaned. This seems to last for quite awhile until a proper reseal can be done.

 

Cheers,

Larry

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[Bulti]

You should clean the underside of the engine as good as you can. It makes the location of the leak ( and most likely leakS) so much easier to pinpoint.


If you want an engine that is bonedry, imo, it's the only way.


FYI, on my car ALL seals were leaking in greater or lesser extent.

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[MCL968]

Here's a new one. Found motor oil behind the right front wheel yesterday. Any advice? I'm thinking possibly oil cooler? The underside of the car by the jacking point rear of the right front wheel is oily.

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[Waylander]

All sorts of things down that side, the oil cooler is right at the front below the right hand headlight, if that was leaking I would expect a leak to show on the bat wing first


You positive it's motor oil as the pas pipes leaking have a habit of making it oily down that side

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[pdxmike]

I had a leak that showed in that same area, on the frame rail behind front pass wheel. Turned out to be power steering fluid, in fact, leaking from reservoir of all places.


I also think fluids/oil tend to comingle with he undercoating down there - at least on my car - and can stay messy for a long while after the problem is resolved.

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[J.Elenbaas]

My guess would also be power steering fluid, and maybe even somewhere from the thermostat housing although the power steering pump or reservoir is most obvious.

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[MCL968]

I checked today before taking it out for a drive, power steering fluid was way low. now the question is where is it leaking from!

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[Waylander]

Do you have the half clear half black tank?


If so they leak between the two colours


The hoses on the bottom leak badly as well


The return hose is crimped on the PAS cooler so not really replaceable the feed hose is replaceable


I had leaks from both places, changed the tank for a brand new all black Meyle unit, as they have non cleanable filters in the tank, think it cost about $15, same unit as fitted to lots of 1990 BMWs, E30 and so on


I managed to trim about an inch off each hose and it seems to have fixed it for now

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[MCL968]

Thanks Martin, I have an all-black tank (must be from New Zealand!) so it has been replaced at some point. I will look into trimming the hoses a bit and also the clamps. The car was relatively housebroken until this happened.

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[Waylander]

Hi Matt

 

here is the Meyle Part number, 4040074433751

 

if anyone wants a new tank, they are all the same not listed for the 968 but it fits perfectly and the part number is correct on the Meyle Site

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