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#1
07-12-2007, 10:51 PM
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Compression testing
I want to compression test my 60 389 using my old sears compresssion tester gauge. Since I'll be doing this myself, can I get a reasonable comparison of the cylinders if I just crank it 5-6 revs per cylinder? The gauge I have holds the highest pressure it sees. Thx for any info / input.
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#2
07-12-2007, 11:47 PM
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remove the spark plugs from the other cylinders. more important than high psi rating is a psi rating on all cylinders that is within about 10% of each other. Make sure the engine is warmed up. A leak down testor is a more accurate way to tell more about an engines condition.
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