Merc 350 Mag temp question

[skinut1]

I have a 2006 Crownline 240EX with a 350 Mag and Bravo III drive. When I just cruise around, the temp stays at the straight up temp of 160 but when I pull a skier or tuber it goes to about 180. It goes back down when I slow down. Will the 180 do any harm to the engine? I know my pickup is at straight up 210 all the time so I am thinking 210 sure won't hurt anything. Am I wrong thinking like this? The boat only has about 180 hours on it and is used in fresh water in Lake Norfork in North Arkansas.
Thanks for the help.

 

[kimcrwbr1]

What is the WOT rpm? Maybe use a prop with less pitch for water sports?

 

[RicardoMarine]

Whether RW Cooled or equipped with a Closed Cooling System, periodic temps of 180 should not be an issue while operating in lake or river water.

I do agree with Kim.... you should prop down when pulling tubes or skiers.


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[bondo]

Ayuh,..... How long has it been since the raw water pump impeller has been changed,..??

 

[Docksidemarineservices]

Take the boat out for a ride and push the throttle wide open, does the temp climb? If yes, you need a new water tube in the TA.

 

[RicardoMarine]

Take the boat out for a ride and push the throttle wide open, does the temp climb? If yes, you need a new water tube in the TA.

OP says; I have a 2006 Crownline 240EX with a 350 Mag and Bravo III drive.

Chris..... forgive my ignorance..... what is the TA?

 

[bondo]

He's talkin' 'bout the water tube trough the Transom Assembly,...

Bravoitis,....