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gavinbr

Jan 5, 2005 09:04 PM

compression on a 240D

hello,

i have low compression on my 1982 240D with 250K miles

how do you tell which is the problem, valves or rings.

any suggestions would be appreciated

brian

pberku

Jan 5, 2005 10:54 PM

RE: compression on a 240D

Put about a teaspoon of oil into each cylinder (one at-a-time), and measure the compression again. If now, it significantly increased, than its your piston rings. If no change, than most likely its your valves, or a valve adjustment is required.

Phil

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