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#1
06-22-2008, 09:53 PM
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W108 250SE Oil seepage from exhaust gasket
Hi All,
I would appreciate your comments and advice regarding oil seepage from #6 cylinder exhaust manifold gasket. I washed the engine last week to determine the source of the oil and to my surprise it was definitely coming from this location. I pulled the spark plug at #6 and it was coated in oil. I removed the other plugs and they were dry and normal in colour. I am assuming that the oil is entering the cylinder through a worn valve guide or valve stem seal. What are your thoughts and corrective actions? The motor has plenty of power and does not seem to blow much smoke - only on hard acceleration. Regards, Tassie Tiger 
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#2
06-22-2008, 10:24 PM
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The # 6 piston probably has worn rings.
__________________
1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#3
06-23-2008, 12:13 AM
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try running a compression test, it will tell you if you are looking at rings or valves. if the comp is low at start add a shot of oil and try again, the oil will temporarily seal up leaky rings. may just even be new valve stem seals if the guides aren't too bad
 .
__________________
61 Austin mini 67 Lotus 7 74 450sl 76 Cadillac 8.2l (501 ci) some new cars megasquirt conversion  on:djet 74 450sl http://www.mercdjetmegasquirt.britautorepair.com/ cis 76 450sl http://www.merccismegasquirt.britautorepair.com/ the best view is always from the point of no return
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#4
06-23-2008, 10:57 PM
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Thanks - I will run a compression test and determine if rings are the cause of the oil seepage. I will advise outcomes.
Tassie Tiger
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