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  1. #1
    Cadet
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    Default Engine temp for a 1986 Mercruiser 140?

    What is the WOT engine temp for a 1986 Mercruiser 140?
    Can someone give me the link to the manual or the manual # to this motor?
    Thanks

  2. #2
    Lieutenant superbenk's Avatar
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    Default Re: Engine temp for a 1986 Mercruiser 140?

    Quote Originally Posted by 1987sylvanoffshore View Post
    What is the WOT engine temp for a 1986 Mercruiser 140?
    Can someone give me the link to the manual or the manual # to this motor?
    Thanks
    Should be 150-160° max. Gets cooler with more water running through, though so it may be cooler than that if everything is flowing well.

  3. #3
    Chief Petty Officer grub1grub2's Avatar
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    Default Re: Engine temp for a 1986 Mercruiser 140?

    Should have a 140 thermostat in it.Mine run's at 120-130.Depending on water temps it will vary slightly.

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