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Compression test...best place to ground it.
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<blockquote data-quote="jethro" data-source="post: 395910" data-attributes="member: 12381"><p>What you are testing in a compression test is how tight the motor is, specifically it's top end. The tool used in this case is air. A pressure gauge installed in the motor measures how much of the air is holding in the top end. All a motor really is at is most basic is a big vacuum pump. You want the throttle body to be open in most cases when performing this test.</p></blockquote><p></p>
[QUOTE="jethro, post: 395910, member: 12381"] What you are testing in a compression test is how tight the motor is, specifically it's top end. The tool used in this case is air. A pressure gauge installed in the motor measures how much of the air is holding in the top end. All a motor really is at is most basic is a big vacuum pump. You want the throttle body to be open in most cases when performing this test. [/QUOTE]
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Compression test...best place to ground it.
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