Help with Oil Leak (Crank Seal ?) TIPS for Install ? - Saab 9-5 Bulletin Board - Saabnet.com
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Help with Oil Leak (Crank Seal ?) TIPS for Install ?
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Posted by Mark in Marine (MN) (more from Mark in Marine (MN)) on Fri, 29 Aug 2014 15:27:21 Share Post by Email
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Our '99 SE 2.3lpt has 218K miles now. My daughter was home with it and the oil was low, so I filed up the oil and told her to check more often. 4 days later I got it home for regular maintenance. In less than 200 miles the car lost 0.5 quart of oil - obviously a leak.

I suspected usual timing cover & head and I cleaned that area thoroughly. I put the serpentine belt and engine support back in place with a thin piece of white cardboard under the clean TC tensioner and above the top of the TC cover thinking to isolate the leak between the TC tensioner and the head/TC cover. I ran the engine for at least 7 to 8 minutes - NO leak (I even revved it to increase oil pressure).

There was oil on the pan and the whole right side (passenger) of the motor - and oil doesn't normally dribble upward. I decide that although I had replaced the crank seal and oil pump o-ring I would check that next. The oil pump cover plate was nearly dry - but the outside edge of the crank seal was fully wetted with oil, and the inside of the crank pulley had oil and crud. I was trying to figure this out when I realized the crank seal had a metallic sheen to it - the rubber was worn off because the seal had pushed outward. Centrifugal force put oil all over the TC cover, and then downward.

I have a new harmonic balancer coming (score line on old one) and a new seal and O-ring. Since I do not own an official seal setting tool, how deep should the seal be pressed into the cover? And should I set it with Permatex super blue or similar sealant around the edge?

Inferential evidence is that a previous owner had replaced crank seal w/o new oil pump cover O-ring. So this will be third replacement crank seal in the cover. I would like to not do this job again.

Mark in Marine
'99 SE 218K miles
'05 Arc

posted by 192.28....

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