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Re: cranking compression question
[Re: MoparforLife]
#1481788
08/09/13 07:47 PM
08/09/13 07:47 PM
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Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
ek3
top fuel
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top fuel
Joined: Jun 2012
Posts: 1,899
MYRTLE BEACH SOUTH CAROLINA
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Quote:
Tell you what - It will run fine. All the cylinders are even showing me that it has pretty equal wear pattern. Doing a valve job (unless you have a valve leak) will do nothing for you. an even test like you have does not represent a leaky valve. A cylinder with a leaky valve most generally will have a pretty noticeable compression drop from the rest. Not an even reading like you have. 
no one said it had 1 leaky valve . hi mileage on -all- valve seats will flatten them out . worn guides will wear the valve seats and valve faces unevenly thus allowing leakage at "all" the tired worn areas. carbon build up on the valves and seats will further interfere with cylinder sealing . an even reading just means even wear. a burnt valve would have a lower reading on that cylinder. the typical fluid test represents how effective a good valve job is at sealing the combustion chambers. if they are leaking ,they are loosing compression..
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