What are the common oil leaks on a 617 turbo? How do you fix them permanently?

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I suggest we solve high gas prices with environmentalists... unfortunately they don't burn well.
1982 300CD, 220K miles: This vacuum system will be the death of me yet! (OBK #26)
1977 F150 400 C6 2wd, 10.2 sec 1/8 mile with 2.75 gears.
1965 Mustang. Mostly stock... LOL!
2001 Ram 2500, cummins, 5spd, 202k miles.(girlfriends)

Make sure you check the plugs in the front of the block. I think there are 2 or 3. On my 300D, these guys needed to be tightened up. Of course, the whole front of the engine had a cake of oil on it so it was hard to find where the oil was coming from.

I recommend gunking down the engine several times until it is perfectly clean. Then drive it awhile and get in there and look it over. I worked oil leaks for weeks but now have a car that doesn't leak a drop.

240Joe

OH, and don't forget, the most nasty and wasteful oil leak is the 3kmiles oil change.

240Joe

All seals leak, its just a matter of of whats acceptable.
As the cars are getting older and older all the seals are going to get old and develop problems. Some are more common than others.
Valve cover gaskets, should be replaced with each valve adjustment. 15,000mi or once a year.
Oil pan gasket at times.
Turbo oil return gaskets. Number 1 on the list
Oil separator return orings.
Oil cooler lines.
Sometimes the front crank oil seal.


Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Another one is the Filter housing to Engine block gasket. They get harden and will leak.

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1983 123.133 California
- GreaseCar Veg System

I think mmy filter housing to block gasket is leaking, because oil looks like its leaking from around the IP. How hard is the housing to block gasket to change?

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1983 300DT 284k miles. :-) "The Benzo"
1998 Mustang GT Custom 4.9 L engine.
1997 Dodge ram Pickup 5.9L

Well I thought it was a breeze. Of course, I had the engine out and on a stand at the time . From what I gather, its a bit tight but definitely do-able. Make sure you get the block and housing surgically clean before reassembly or you're just asking for a leak. There is also a gasket at the front of the ip where it meets the block. It could be leaking from there as well.

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Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo

Instead of just changing the oil housing gasket, try tightening the bolts first.