Running hot
It run hot 210 to 240 I put a new thermostat in . Both the electric and the motor fan works. its a 1992 winnebago Brave 30ft with a 454. Thank Jim
Forum Discussion
turbojimmy wrote:rgatijnet1 wrote:
Usually at highway speeds, neither the electric or clutch fan have too much affect on the temperature. The highway speed usually means enough air is moving through the system to keep things cool.
Since it is getting hot at both idle and highway speeds, it could be an air bubble in the system, a plugged radiator, a collapsing hose, or something else other than the electric fan or mechanical fan clutch.
I posted the same logic, and was corrected (though I don't recall the logic), when I was having cooling issues last year. I assumed that since it was getting hot on the highway that the issue had to be something other than the fan. But, even at speeds 45+ there is a dramatic difference in temperature with the new clutch. I can hear it roar at those speeds when it needs to.
I just recently replaced my fan clutch on my 8.1L GM engine. At highway speeds, unless I was climbing, the temperature was normal even tho I was pulling a toad. The only time I noticed the engine running hot was when I was stopped or moving slowly through city traffic.
My fan clutch would kick in and roar at 207 degrees when it was good so I knew it was the problem. I ordered a replacement fan clutch and had it shipped ahead to my next stop. While on the highway, for the next 250 miles to my destination, everything was fine and the water temperature stayed in the normal range.
I guess it might have a lot to do with the air flow across the radiator for the different coaches. I know some do tend to run hotter than others because of the design of the front cap.
