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Oil leak

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Mercedes >> Mercedes Benz Models >> Diesel Discussions >> Oil leak

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Oil leak - 12/22/2004 6:02:08 PM

Paully

Posts: 5
Joined: 12/22/2004
Status: offline

Had 220d 1971 for a year now, no problems until now. Lots of oil being sucked into intake manifold and driping onto ground. Happened suddenly with a shudder and massive white smoke cloud out tale pipe. Not sure where the problem is. Any insights into problem would be welcome.

Post #: 1

RE: Oil leak - 12/22/2004 7:57:19 PM

sleepwalker

Posts: 7080
Joined: 4/12/2004
From: Philippine Islands
Status: offline

don't worry paul.

cause:
cap on first camshaft bearing improperly machined on inside resulting in excessive oil leakage.
engine oil is sucked into the combustion chambers through the crancase ventillation.

remedy:
remove cylinder head cover.
disconnect preshaped hose between pressure valve (crankcase ventilation) and oil separation chamber (cylinder head cover) and check at increased engine idle speed (up to 3000rpm) whether oil separator fills up with oil.

if the oil separator is filled up with oil, do tell me for i will give the next step.

(in reply to Paully)

Post #: 2

RE: Oil leak - 12/24/2004 9:18:45 AM

mespe

Posts: 30
Joined: 5/20/2004
Status: offline

I don't know how the 220D's oil seperator is made, but on my 300SD, the top cover of the oil seperator was loose, squirting oil out. I simply resecured the top cover (by pressing the tabs that hold the cover to the canister back down) and my oil leak slowed way down.

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(in reply to sleepwalker)

Post #: 3

RE: Oil leak - 12/24/2004 2:05:00 PM

pberku

Posts: 77
Joined: 10/17/2004
From: Canada
Status: offline

You may have excessive blow-by.

After the car has sat for at least 12 Hrs on level ground, check your oil level, and make sure that it's not more than half way up on your dipstick. If it is, remove some of it until its no more than half way up.

Also, try changing to heavier grade oil, i.e.: Fully Synthetic, Mobil 1, 15W50, or equivalent

Phil

< Message edited by pberku -- 12/24/2004 2:12:22 PM >

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'95 E300D
180,000 Miles

(in reply to mespe)

Post #: 4

RE: Oil leak - 1/8/2005 11:38:35 AM

Palangi

Posts: 4
Joined: 1/1/2005
Status: offline

Either the vacuum pump diaphragm has failed, or the injection pump pnumatic governor diaphragm has failed.

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84 300D
84 240D

(in reply to pberku)

Post #: 5