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  #1  
Old 04-21-2013, 10:06 PM
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Rod Bender

I have a 91 350 sdl that I bought from a guy about 2 years ago. I have never driven the car I think it has the head gasket oil passage problem. I have started the car once to move it 4 ft. and after shut down I get oil spewing out the tail pipe. Has Mercedes perfected the head gasket to replace it or could it be stretched head bolts. I have never seen a real good explanation of why this happens. The car has 190,000 miles on it and is in very good condition other than this problem. anyone have any info?

Thanks
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  #2  
Old 04-21-2013, 10:35 PM
compress ignite's Avatar
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Location: 32(degrees) North by 81(degrees) West
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"Google" (on ANY MB Forum) "Rod Bender"

Enough info to keep you busy reading until May Day.

ASSUMING:
head gasket problems without compression/leak down testing does WHAT?
(Answer: Mis-Informs)

'Could be a HG,Or could be "Wallered Out" Cylinder(S). Etc.,Etc.,Etc.

KNOW what's wrong with this 3.5 before trying to Kiss Pandora!

Smartest Plan would be to have a 3 Liter OM603 Lower End of Good Provenance
Waiting in the Wings,In Case Bad goes Worse.
(It Plugs Right In to the Old Head of the 3.5 liter)
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  #3  
Old 04-21-2013, 11:32 PM
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If there's oil coming out of the tailpipe it probably has a blown turbo...

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000).

2013 Fiat 500E. 20,000 miles, 80 miles at a time.
2012 Passat TDI. 95,000 miles. More space, power, and fuel economy than the Benz
2004 Touareg V10 TDI. 150,000 miles. One of 450.
1999 Jetta TDI. 310,000 miles.
1992 Jetta ECOdiesel. 156,000 miles. 1 of 48. Sold.
1991 Jetta ECOdiesel. 430,000 miles. 1 of 700. Sold to VeeDubTDI, totaled in front of our house
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  #4  
Old 04-22-2013, 12:32 AM
general nuisance
 
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Posts: 394
I'm gonna say ditto on the turbo being a problem. If it was oil consumption into the engine the thing would have run away on you but you were able to shut it off normally so I see no reason to assume the worst yet. It's more likely the oil is going to the turbo and out the tail pipe.
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92 W140 OM603 Bender
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89 VW Fox diesel
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  #5  
Old 04-22-2013, 09:03 AM
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Pull the number one injector or glow plug. Disable the injector by using the hard line nut if removing the glow plug. Crank the engine. If oil is blown out of the cylinder it is the oil passage.

If the glow plug looks dry it probably is the turbo as mentioned. Another test is to remove the boot between the tubo and the engine intake. It may be a metal crossover pipe on your model. Lots of oil present of course it is the turbo.
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  #6  
Old 04-22-2013, 12:58 PM
Control Freak
 
Join Date: Oct 2011
Location: Columbia, SC
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Quote:
Originally Posted by barry12345 View Post
If the glow plug looks dry it probably is the turbo as mentioned. Another test is to remove the boot between the tubo and the engine intake. It may be a metal crossover pipe on your model. Lots of oil present of course it is the turbo.
Good advice, but know that if the cross over pipe is full of black tarry goo that is a normal byproduct of a properly functioning evil EGR valve. Don't confuse that with oil from a blown turbo.

Wear gloves, that black snot is the worst to get off your fingers. Even with GoJo, it barely makes a dent in it.
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2014 ML350 Bluetec (wife's DD)
2008 E320 Bluetec (my DD)
2008 ML320 CDI (Older son's college DD)
1998 E300DT (Younger son's college DD)
1987 300TD sold to vstech
----------
gone but living on
1983 240D (body to greazzer, engine to t walgamuth)
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  #7  
Old 04-22-2013, 02:36 PM
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Waiting for his Model 3..
 
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When my turbo went south the 2nd time I could take that pipe off and literally pour oil out of it.

-J
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  #8  
Old 04-22-2013, 03:07 PM
Control Freak
 
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To clarify,

the EGR goo is more like a clogged drain pipe or arteries.

turbo blowout, the oil is liquid and it pours out.
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2014 ML350 Bluetec (wife's DD)
2008 E320 Bluetec (my DD)
2008 ML320 CDI (Older son's college DD)
1998 E300DT (Younger son's college DD)
1987 300TD sold to vstech
----------
gone but living on
1983 240D (body to greazzer, engine to t walgamuth)
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  #9  
Old 04-22-2013, 03:33 PM
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Join Date: May 2008
Location: Springfield VA
Posts: 5,174
Yup. The EGR goop is about the consistency of peanut butter.

-J
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  #10  
Old 04-22-2013, 04:41 PM
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Peanut butter that has sat out for a month.....!
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins& six speed; I have had about 35 benzes. I am finishing a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual....I also have a 427 Cobra replica with an aluminum chassis.
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  #11  
Old 04-22-2013, 08:19 PM
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Thanks for the imput I will try the test mentioned.
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