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Old 01-09-2002, 11:32 PM
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Mike Murrell Mike Murrell is offline
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Join Date: Feb 2000
Posts: 2,357
What do your spark plugs look like? Have you pulled them?

Some will tell you that at 250K, not only are your seals gone, but so are your guides. That's a valve job - alot more than $500.
You'd need to get the seals off to get an idea of how much guide slop there is in the head.
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
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