Is Poor Man's Compression Check OK

06-11-2015, 10:11 AM

#1

mobythevan

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Is Poor Man's Compression Check OK

Is it reasonable to check the compression using a piston engine gauge with the shrader valve removed and then taking slo-mo video of the dial with a cell phone? Has anyone tried it?

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06-11-2015, 10:18 AM

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9krpmrx8

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If you just want to know if it is blown or not yes, if you want to get an accurate picture of the health of your engine then no.

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06-11-2015, 12:01 PM

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Williard

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The last motor I tested that was tested with an analog tester just prior to me testing it.

Analog=90 psi
Rotary tester=75, 73, 71

Travis

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06-11-2015, 12:08 PM

#4

mobythevan

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OK, I'll keep that in mind.

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