Thread: 1983 240d zero compression #3 stuck intake valve
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Old 10-17-2011, 02:38 PM
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whunter whunter is offline
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Answer
Quote:
Originally Posted by barry123400 View Post
What are you thinking Mr Hunter? Do these heads have valve seat inserts? I have been wondering how he went from basically wide open to normal compression during the initial testing.. I cannot see an application of a light oil sealing that valve up that well. Bunker C maybe.

Although I am old enough to know that everything is not always logical progression. I even remember opening up some piece of equipment and the defective part had developed a basic face in the failure mode. . Not only that it was just sitting there and smilling at me.
I am expecting:
* Massive carbon on seat and valve.
* Damage on the valve seat and/or face.
* Damaged valve guide canting valve against seat.

Note:
The OM617 INTAKE and EXHAUST valve guide ID specification is 10.000 - 10.015 MM.
I have found many valve guides with 0.75 slop.
Last edited by whunter; 10-17-2011 at 04:28 PM.
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