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Old 11-08-2011, 11:17 AM
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gastropodus gastropodus is offline
Mercedes Benz apprentice
 
Join Date: May 2010
Location: Portland, OR
Posts: 434
Quote:
Originally Posted by oiler View Post
Well it does smoke alittle, esp at start up...but in comparison to other diesels I've seen it's normal. As I had mentioned earlier,I checked to see if this engine has blow-by. I did this by turning the oil cap off,but let it sit on the valve cover...it didn't move! I guess that's a good sign.
If the pressure in the crankcase is being relieved elsewhere (because the PO left some other place open to the atmosphere) then the oil cap test isn't going to tell you anything useful. Even a good engine with little blow-by will have some pressure at the oil cap.

Kurt
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- '79 240D - engine swap complete! Engine broken in! 28-31 mpg! Lovin' the ride!
- '86 190D (W201-126) - 2.5 NA engine, 5 speed, cloth interior, manual climate controls, 33-34 mpg (sold to forum member).
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