454 Running Hot
So I just got back from my 2nd trip in my '84 Allegro. First trip was 300-miles RT in high-80 degree weather. Engine temps fluctuated but didn't enter the red zone until the last couple of mile from m...
Forum Discussion
Gjac wrote:
Jimmy, the fan clutch is suppose to come on when the eng is first started after a minute or so it will disengage and quiet down. If your cooling system is working properly the fan clutch should not come on unless you are climbing a long steep hill or shorter hills on a very hot day. You can check the fan a number of ways. The easiest way is to spin it if it rotates more than several revolutions, if you see silicone leaking out, or if it has excessive play then I would think about replacing it. The fact that it comes on when you start the eng, it comes on after a hot hill climb and your temps recover quickly sounds like it is working the way it should. Like I said in my first post anyone can change parts based on age (we have all done it) but it takes a little more thought to figure out what is wrong first if anything. Do the thermostat and radiator testing first before you start throwing parts at it, it will be cheaper for you in the long run. I would suspect a 30 year old radiator and test that first.
Somehow I missed your first post. I just went back and read it. All makes sense. I think the fact that it recovers quickly is good, too. It will idle cool on an 85 degree day all day long. Temp goes a little right of center, but it doesn't get "hot". I was thinking of making baffles to force the air into the radiator. What is the material you used?
