What Cooling Temperature Should My Boat Be @ So It don't overheating?

Oshkosh1

Ensign
Joined
Jun 8, 2009
Messages
968
Re: What Cooling Temperature Should My Boat Be @ So It don't overheating?

170-190...or thereabouts depending on the accuracy of your gauge.

No more than around 40deg or so hotter than your T-stat(OEM is a 160 I beleive).
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: What Cooling Temperature Should My Boat Be @ So It don't overheating?

Your engine should have a 140? thermostat, and you should never see over 175? on the temp gauge. 190? is too hot for any Mercruiser raw water cooled engine.
 

hvluve

Seaman Apprentice
Joined
Oct 5, 2010
Messages
43
Re: What Cooling Temperature Should My Boat Be @ So It don't overheating?

Thanks guys for the info.
 
Top