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Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have an 88 omc cobra 350 5.7 in a four winns I repaced

Customer Question

I have an 88 omc cobra 350 5.7 in a four winns I repaced impeller ,thermostat,checked for any plugged up hoses etc. she runs about120° for a few minutes then shoots to 180°+ Im stumped has this happened to anyone else that might help? Thanks
Submitted: 6 months ago.
Category: Boat
Expert:  Jason replied 6 months ago.
Good morning, my name is ***** ***** am I speaking with? Does the engine have open cooling, or closed cooing with a heat exchanger and antifreeze? What temperature thermostat did you install? Are you taking temperatures manually with an infrared temp gun, or are you relying on the boats gauge?

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