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  1. 12-01-2017, 08:25 PM #1
    jlperkins
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    Is these compression numbers ok

    2009, 200 mercury optimax compression numbers, sorry i do not have the serial number
    1-120
    2-111
    3-120
    4-130
    5-112
    6-120

    looking to buy a boat with this motor is this ok ,that they vary like this. Thanks
    This is a cold motor
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  2. SilverFox579
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    #2 12-02-2017, 01:15 PM
    See this topic at top of 3L forum and post any further questions there since the 200 Optimax is a 3L engine - Compression Testing
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    Phil
    '09 Hewescraft ProV
    '09 150 Optimax

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  3. EuropeanAM
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    #3 12-08-2017, 06:23 PM
    +1... you CANNOT rely on cold-compression numbers. MUST be performed exactly as specified.

    Moving this thread to the 3L forum for you. Be sure to obtain and provide the serial number.


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