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Mercury 200 HP Compression

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05-02-2020, 04:15 PM

Duke01

Duke01 is offline

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Join Date: Oct 2017

Location: Canton, MI

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Mercury 200 HP Compression

Launched my V20 cuddy today on Lake Erie which gave me a chance to check compression on my 1980 Mercury 200 HP. She is hard to start, but runs well. 1570 hours. Compression is as follows: 130, 135, 120, 125, 125, 115. I tested hot. My understand is that the overall range should be within 10%. I am close to 15%. Any thoughts regarding these numbers?

Thanks, Duke

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