quick help with egine

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09-05-2005, 01:56 PM

OneFine89Mustang

4th Gear Member

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Join Date: Aug 2005

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Posts: 1,410

quick help with egine

how long do you have to crank the engine over for a compression test.
thanks

09-05-2005, 02:38 PM

posnick

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RE: quick help with egine

just a few seconds is all you need. do you know what numbers are good? all engines are different. some are good at 150 and others are good at 125

09-05-2005, 02:43 PM

cammedlx

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Join Date: Jul 2004

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RE: quick help with egine

^^^^^Just turn it over until the guage stops building pressure.

09-05-2005, 03:41 PM

mustang8719

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Join Date: Jun 2004

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Posts: 937

RE: quick help with egine

How ever many time you crank it make sure you do it that many for each cylinder.
I mean crank it over the same amount of times for each cylinder.You are also supposed to hold the throttle wide open when doing it.

It is also supposed to be a warm engine.