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#1
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pressur in cylinder cover
I have a 85 300D turbo with over 200K miles .starts even at -20c. good acceleration. good on "gas". BUT pressure is built under the valve cover that causes oil to leak out of the oil filling cap. mainly after idling.
no pressure leak from dip stick. any suggestions. Jonathan |
#2
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I suggest you have blowby.
This is normally vented back into intake through recirculation valving or just a direct pipe from valve cover to intake. Which may be controlled by vacuum, so that more is accepted at high rpm and less is accepted into the intake at low rpm... Do not obstruct that pipe. Just don't.
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Cheers! Scott McPhee 1987 300D |
#3
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There's a seal on the oil cap. Might want to check that, too.
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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
#4
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Quote:
....you can flap the seal for better sealing... edit : flap .....nope I meant flip .
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w126 500SEC gen II euro, powered by OM617 turbo stolen from 84 300SD 2.88 diff,EGR blinded next wish/project: w114 coupe OM603 powered Last edited by cho; 07-17-2014 at 09:38 AM. Reason: language confusion |
#5
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Or just glue the cap on.
__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes 1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die." |
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