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crankcase ventilation - oil dipstick tube seal

posted by  darmstrong on  Sat Apr 22 04:20 CST 2006
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last visit: Sat Sep 13 12:21 CST 2014
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I'm losing a lot of oil on my 940 turbo - seeping from the filler cap seal, and I'm sure other places too - so I'm doing the usual crankcase ventilation tests. When I blow into the oil separator with the filler cap installed, I get a significant air leak where the dipstick tube meets the block.

Is the tube that houses the oil dipstick supposed to have an airtight seal with the block? Is there actually an o-ring or seal that gets installed between the two?


--
David Armstrong - '86 240(350k km?), '93 940T(270k km), '89 240(parts source for others) near Toronto







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