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Crankcase pressure? 200 1989

posted by  greg_mustang on  Tue May 13 02:05 CST 2003
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last visit: Sat May 10 07:26 CST 2014
[RELATED]

Since mid winter I have noticed some oil leakage on my B230F, '89 240 DL sedan. Didn't leak nothing last fall.
No very significant amount... but leaves a little mess everytime I park it in the driveway, so the mess is on the street now.

I 'regularly' take a peak at the flame trap. It is still the metal one.
I ordered a flame trap kit. Last week I did and engine wash. BTW the leak appears to be coming from the back corner of the valve cover.

I removod the flame trap hoses last night, the little one to the intake is clear, the intake nipple is clear, the trap itself was clear and the lower hose was clear with some inner buildup. I replaced everything with the new plastic trap and kit.

Question: should I be able to feel positive pressure with my finger at the output of the breather box while the engine is running? I am asking this, thinking maybe the breather box is clogged. I feel nothing. No pressure.

When I undo the oil filler cap it jiggles up down like crazy. Jiggle test fails miserably. Definite pressure in there.

Any other thoughts before I undo the intake to get at the breather box?

Thanks in advance,
Greg Mustang
Montreal - Ottawa
Canada





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