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Re: BTW It's an '95 525, M50 engine (archive)

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Posted by MicahO on August 31, 2001 at 07:35:23:

In Reply to: BTW It's an '95 525, M50 engine posted by Chris Rose on August 30, 2001 at 21:43:47:

Is it coming from higher up on the block, then drooling backwards? I've got a very small leak (doesn't even get smelly unless I blast uphill for extended periods , and has negligible effect on oil level) from the gasket between the oil filter housing and the block. From there the oil slowly goes backwards and down the block, it is somewhat visible when you look under the intake manifold.

I already have the $4 gasket to do the replacement, unfortunately, I will have to remove the PS pump and alternator to get to the filter housing. Major labor for a $4 part.....

It _could_ also be the intake side of the valve cover gasket, which is much easier to replace. You were thinking of replacing it anyway - probably a better place to start.


Last night I said that the oil level has not changed. Well tonight it is down to the upper notch. (down about 1/10" on dipstick as checked before putting on ramps)

If any of you read my post last night about having an oil leak after switching to synthetic, well here's an update.

I cleaned the underside of the engine thorougly then took car for my 3 mile test drive. Put it back up on ramps and here's what I found.
Fresh oil film on sub-frame cross member just behind what I think is the oil level sensor on the oil pan (it's opposite side of drain plug and on bottom of pan with three bolts). There was also small patch of oil film on center tie rod right behind sub-frame cross member. The problem is I didn't see oil anywhere else. It did NOT look like oil was leaking from around the oil level sensor.
I put white paper napkins under the car tonight and will look in the morning for evidence. The car is still sitting on ramps though so that may change things somewhat.
Any other ideas out there? Please!

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