87' Merc 115 V6... Heat increases/decreases...

frustratedboater

Chief Petty Officer
Joined
Jul 10, 2007
Messages
436
"Greeting all in the Merc World",
I need some advice from some of you who have expertise with heating issues. I have an 115hp engine that, when at an idle the temperature climbs. When it's throttled up, the temp decreases. Often times the alarm will sound if idling too long. To me, it sounds like possible impeller, or maybe thermostat, corrision/blockage issues.

Is this something that you have experienced before that you could help with? I am open for any suggestions on where I should start looking :) Thanks...

~FB~
 
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