[mbass777]

I have a 93 F350 Duelly 7.3 IDI bone stock new inj pump at 220000 and new injectores at 275000 this is a zf5 speed with solid flywheel conversion at 275000 used to tow a 32 ft fifth wheel 14000 pounds with a 2500 pound pin weight we were pulling today in 90 degree wheather and the temp gauge was between the R and the M started to panic cause usalley reads around the N or O so pulled over first chance and poped the hood shot the rad intake and water pump nothing over 195 degrees what temp should it be running at I know I need a real gauge but am on the road and wont be able to tackle that for at least 700 miles until we stop for the summer in SD so all you guys with real gauges non turbo please respond

 

[drinkypoo]

One reference I found on a site that this site wordfilters out of your posts to avoid competition claims that the thermostat begins to open at 192 and fully opens at 212.

Hmm, here's a link on this site...
http://www.thedieselstop.com/forums/f24/203-degree-thermostat-why-164859/index2.html

Conclusion, I wouldn't worry about that reading, but do install a real gauge when you can.