240 Sea Ray overheating at high speed

Susan Rivera

New Member
Jun 16, 2019
5
Boat Info
240 Sea Ray Sundancer 2008
Engines
454 Mercruiser w BRAVO III Drive
Hello Sea Ray friends. I took the beauty out yesterday and realized the engine overheats at high speed Its fine on idle or slow 7 to 10 mph Any ideas?
 
2008 Sundancer?

Can you post some water pressure readings from various rpm? ie 1,000 2,000 3,000 rpm.

Also we need a little service history. (Thermostat, water pump, manifold/riser)
 
When was the last time you changed the impeller in the raw water pump?
 
Hello Sea Ray friends. I took the beauty out yesterday and realized the engine overheats at high speed Its fine on idle or slow 7 to 10 mph Any ideas?

Were you able to resolve this issue ??? Thanks
 

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