Closed Cooling Help/Advice
#11
Registered

Joined: Aug 2005
Posts: 711
Likes: 88
From: South FL
I have a few ideas as I have had issues with mine over the years:
1) did you "burp it" air can cause issues in the closed cooling.
2) related to above drill small holes in edge of thermos - lets air bleed out
3) triple check raw water flow ... thruhull, valve, impeller, oil coolers (if old check not clogged), and make sure all clamps are tight. I had a busted clamp - let in air - caused heating issues.
Good luck Bro
1) did you "burp it" air can cause issues in the closed cooling.
2) related to above drill small holes in edge of thermos - lets air bleed out
3) triple check raw water flow ... thruhull, valve, impeller, oil coolers (if old check not clogged), and make sure all clamps are tight. I had a busted clamp - let in air - caused heating issues.
Good luck Bro
#13
Registered

Joined: Apr 2014
Posts: 650
Likes: 123
From: North Florida
An important piece of missing information is that he isn’t using oil coolers of any kind. His issue is overheating after a hard wide open run when the oil temps would naturally be sky high without coolers. The temps don’t rise until returning to idle speed if I have his description right.



