What is a good operating temperature?

tigerhack

Petty Officer 2nd Class
Joined
May 7, 2007
Messages
157
what temperature my engine should not exceed and what is normal ?. i notice mine intend to increase at hi speed .
 

Haut Medoc

Supreme Mariner
Joined
Jun 29, 2004
Messages
10,645
Re: What is a good operating temperature?


That depends on if you are raw water cooled or closed cooled......
160 for raw & 180 for closed.......
Anything over 190 & you definately have a problem......;)
 

tigerhack

Petty Officer 2nd Class
Joined
May 7, 2007
Messages
157
Re: What is a good operating temperature?

my gauge dont even budge when it is idling ,only at hi speed it intend to go up more ...so should it be the reverse in this case ?
 

Haut Medoc

Supreme Mariner
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Jun 29, 2004
Messages
10,645
Re: What is a good operating temperature?

Budge from what?..... :confused:
 

AZSenza

Chief Petty Officer
Joined
Mar 11, 2008
Messages
521
Re: What is a good operating temperature?

From what I remember from previous engines, it sounds like your thermostat has been removed. the engine may have been over heating and a previous owner removed it. I would start by replacing the impeller (Pretty Cheap and Easy) see where that leads, if no change, replace the thermostat (Also cheap but not quite as easy)
 

Mkos1980

Chief Petty Officer
Joined
Oct 25, 2007
Messages
640
Re: What is a good operating temperature?

I have a 140 stat and after a hard run and an idle down it'll go to 150. After that at idle or taking back off It'll drop to 140ish. Raw water cooled here.
 

Haut Medoc

Supreme Mariner
Joined
Jun 29, 2004
Messages
10,645
Re: What is a good operating temperature?

I have a 140 stat and after a hard run and an idle down it'll go to 150. After that at idle or taking back off It'll drop to 140ish. Raw water cooled here.
Perfectly normal....;)
 

Bondo

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Staff member
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Apr 17, 2002
Messages
71,095
Re: What is a good operating temperature?

I have a 140 stat and after a hard run and an idle down it'll go to 150. After that at idle or taking back off It'll drop to 140ish. Raw water cooled here.

Ayuh,......

That's exactly what TigerHack's Should be doing.......
 
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