temp at 3200 rpm

robertwrocky@aol.com · Sun Aug 02, 2009 5:49 pm

i have the 318, port runs a bit hotter at 3200 then starboard, what should the temps be at 3200 rpm, fresh water cooled thanks

LandVF36 · Post by **LandVF36** » Sun Aug 02, 2009 7:25 pm

Your thermastats are likely between 120-140 degrees. They should be the same. Engines should stablize at the same temp, even at low idle and remain at that temp regardless of rpms.

Check the impellers on your external raw water pumps first. If chunks of rubber is missing, and you have tranny or oil coolers, the rubbe chunks are likely stuck in the cooler inlets. If not, the chunks often get stuck in the thermastat housing.

prowlersfish · Post by **prowlersfish** » Sun Aug 02, 2009 8:43 pm

Your thermastats are should be between 160-180 degrees If your fresh water cooled (140 if raw) I believe . other wise I agree with LV36
just rember no 2 engines will be the exatly the same

rossjo · Post by **rossjo** » Sun Aug 02, 2009 9:08 pm

And you thermostats and gauges may not be very accurate.

You can by an InfraRed Thermometer for < $100 to measure exact temps and calibrate (even if you just make mental corrections) your gauges ...

The Fluke 62 is $89 with FREE SHipping on Amazon ...
http://www.amazon.com/Fluke-62-Mini-Inf ... B000MX5Y9C

Ebay ...
http://shop.ebay.com/i.html?_nkw=infrar ... =1&_ipg=50

robertwrocky@aol.com · Mon Aug 03, 2009 8:51 pm

thanks

TC · Post by TC » Tue Aug 04, 2009 5:34 pm

How's this for conversation?
Two months ago stab engine suddenly started to run cold. Figured 'stat was stuck open. Decided to change both. Prior both engines ran @ 140'ish. They ran at that temp whether idling or under load.
Pulled out 2 identical 142' stats and installed two new 140' stats. First run out port engine 155', stab 160' both climbed to that temp under load and cool down to 145' and 150' at slow speeds. That weekend put on approx 6 hrs with no change.
Comments gentlemen.