2002 Mercury Optimax 135 SW Overheat solved

pennyanman1969

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Jun 1, 2017
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if getting overheat at idle, check poppet valve! Turns out the little teflon washer underneath the head disintegrated and we didn't realize until we looked at the rebuild kit and had a mystery "extra" washer...item (13)
 

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  • Screenshot 2021-07-01 at 17-44-22 Mercury-OB-2000-on-OM-115-135-150-175-OG960500-2-STR-SM-0653...jpg
    Screenshot 2021-07-01 at 17-44-22 Mercury-OB-2000-on-OM-115-135-150-175-OG960500-2-STR-SM-0653...jpg
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