I have a 99 triton tr18 with 99 mercury 150 efi. Just did a compression test and here was the results.
100 110
100 110
102 112
Don’t know a ton about outboards, but what does results like that mean. I’ve been told they should be within 3% of each other. Thanks in advance!
hot batt ,mtr warmed , all plugs out , wide open throttle????? =no retest / not too bad
.................................................. ...the scariest thing in life is the unknown ...................................
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See the FAQ at top of the 2.0/2.4/2.5 Liter forum (which covers your engine) for detailed procedure on compression testing - Compression Testing
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Phil
'09 Hewescraft ProV
'09 150 Optimax
The motor was tested while being serviced at a boat mechanic shop. The mechanic wasn’t in when I picked it up so he never explained how the test was done. Nothing was ever said about the results so I assumed they just have been within or close to spec.
Moving thread to the correct (2.5L) forum for you.
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