Operating Temperature

[Beefer]

I've combed through my engine's owner's manual, checked every spec listed in the Seloc, and read gobs of posts here, to no avail.

I have a Mercruiser 488r (aka 170), and I'd like to know what the proper operating temperature range is for it. Most of the time she runs right at 160*F, but it gets up to 180*F after about 2 hours at 3500rpms. Hasn't run hotter (yet).

Just wanting to know at what temp I need to worry, and the books aren't helping....

 

[Alpheus]

Re: Operating Temperature

Those temps are absolutely normal ( if thats the correct temp for the thermostat you have installed) and you have nothing to worry about. 20 deg F after 2 hours of running almost WOT. Relax and enjoy your perfectly normal operational 470. You are one of the lucky ones...

http://forums.iboats.com/showthread.php?t=418315


PS


Ditch the Seloc and get the REAL manual. This is for the 85 and up but its a start...

http://www.4shared.com/document/gh-PNxn3/Mercruiser_Service_Manual_8_19.htm

 

[Beefer]

Re: Operating Temperature

I found (in the manual from Alpheus) a little note that the normal operating temp is between 165* and 200*.

 

[Eric 3.7LX Alpha 1]

Re: Operating Temperature

Here while your at it:

http://www.4shared.com/account/document/zz_5pj9o/Service_Manual_06.html

Finish off the set

 

[nola mike]

Re: Operating Temperature

when did the manuals come back?

i installed a thermocap on mine, which reads ~30' higher than my gauge. i run at about 180', a little higher when skiing.