1993 OMC 4.3L RUNS COLD about 93*F

spunkyman

Petty Officer 2nd Class
Joined
Jul 17, 2011
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Posting for a friend who has a !993 Four Winns with an OMC 4.3L (cobra).
Problem is that is runs cool. He can't get it up to over 100*F. New 160 thermostat installed, and everything has been checked. it runs great, but just cold. This was a transition year from OMC to Volvo, so I wonder if this has something to do with it? I know that later on on some manifolds with 3.0L's, they put metal plate between the manifold and riser to limit the amount of water flowing through it. Perhaps could this be the problem that there is too much water running through it, not allowing it to heat up? Could this be related? Perplexed.

Anyone had this issue? Perhaps there are other factors I could try?

Many Thanks
 

Don S

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