Low Engine Temp question

Chaos · 04-21-2010, 12:14 AM

I just took delivery of a new boat (new for me) last week. On my maiden voyage I noticed the engine temps (twin mercs) were reading low. They were at about 85 degrees after 30 minutes of idling and then after a relatively energetic pace from Weirs to West Alton Marina, they only got to about 100.

I would have expected about 160 after running for a bit, even with the 45 degree water, and of course a bit higher after the cruise.

I ran through all the smartcraft calibrations and settings and no change. The dealer believes that maybe both thermostats were removed.

Has anyone out there had a similar experience?

Twin Mercury 4.3MPI 220HP with Alpha drives.

04-21-2010, 12:14 AM	#1
Chaos Senior Member Join Date: Apr 2009 Location: Danville, NH and West Alton Marina Posts: 134 Thanks: 111 Thanked 32 Times in 20 Posts	Low Engine Temp question I just took delivery of a new boat (new for me) last week. On my maiden voyage I noticed the engine temps (twin mercs) were reading low. They were at about 85 degrees after 30 minutes of idling and then after a relatively energetic pace from Weirs to West Alton Marina, they only got to about 100. I would have expected about 160 after running for a bit, even with the 45 degree water, and of course a bit higher after the cruise. I ran through all the smartcraft calibrations and settings and no change. The dealer believes that maybe both thermostats were removed. Has anyone out there had a similar experience? Twin Mercury 4.3MPI 220HP with Alpha drives.