240 2006 sea Ray Sundeck overheats at low RPMS

johnsimeone

Cadet
Thread starter
Joined
Oct 29, 2026
Messages
13
If the problem was in the manifolds, wouldn’t the boat run hot when underway? The engine cools down when at 1000 rpm or above, heats up when going slowly.
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
44,701
We can keep guessing for a very long time, until you do some testing we may never know
 

johnsimeone

Cadet
Thread starter
Joined
Oct 29, 2026
Messages
13
Understood. I appreciate the help. What’s your opinion about it possibly being the circulation pump?
 
Top