98 merc 115

Sniper Spear-It · 07-28-2008, 11:13 AM

i have just replaced the thermostat but i still have a continuous alarm going off. Is there something that could be causing an over heat.I ran it yesterday for a few hours with the alarm going off constantly(very annoying). The motor ran fine. When i take the cover off it is hot to the touch but isnt every motor?i imagine the thermostat opens at 185 but i am not sure.Any help would be greatly appreciated

Thanks

Jeff

sosmarine · 07-28-2008, 11:32 AM

First I would disconnect the temp sensor and if the alarm is still on that means the warning amplifier is bad. If the alarm goes off then you need to get a reading on the actual temp of the head. If it is below 190 then the sensor is bad.

DOUBLE "D" & LV · 07-28-2008, 07:42 PM

If the alarm does not stop after what sos said, then the oil alarm module is probably bad.

07-28-2008, 11:13 AM	#1
Sniper Spear-It Senior Member Trigger Join Date: Jan 2008 Posts: 260	98 merc 115 i have just replaced the thermostat but i still have a continuous alarm going off. Is there something that could be causing an over heat.I ran it yesterday for a few hours with the alarm going off constantly(very annoying). The motor ran fine. When i take the cover off it is hot to the touch but isnt every motor?i imagine the thermostat opens at 185 but i am not sure.Any help would be greatly appreciated Thanks Jeff

07-28-2008, 11:32 AM	#2
sosmarine Senior Member Sailfish Join Date: Sep 2007 Location: Navarre/Town Center Posts: 1,856	RE: 98 merc 115 First I would disconnect the temp sensor and if the alarm is still on that means the warning amplifier is bad. If the alarm goes off then you need to get a reading on the actual temp of the head. If it is below 190 then the sensor is bad.

07-28-2008, 07:42 PM	#3
DOUBLE "D" & LV Senior Member Grouper Join Date: Oct 2007 Location: pensacola Posts: 863	RE: 98 merc 115 If the alarm does not stop after what sos said, then the oil alarm module is probably bad.

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