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Originally Posted by deltatango I have an 82, 280. It has a new crate engine, new radiator, new clutch fan, all new engine stuff. It cools great at idle. It gets warm at speed. (approx 210) Let it idle again and its down to 170.
I know it's making more residual heat at speed so it has to dump more heat. But there is the cooling fan shroud that looks to me like it is blocking the natural ram air at speed thereby making the engine run hot.
Take off shroud. More air at speed. Better cooling.
Anyone? |
deltatango- concerning removing shroud: we have a 1970 GMC 'Jimmy', 350 small block. I tried to drive it across town (once) without the shroud on (to wrecking yard to get new shroud) and it ran wayyy to hot where I had to stop more than once to let it cool down. Fortunately I was able to find one there but had the same trouble getting home until I could put in on. Once it was in place, no more running hot problem. I would think the shroud directs the cool air that the fan pulls thru the radiator to the front of engine. Just my 2cents.
However, on our motorhomes, it sure would open up access to everything if that shroud wasn't there blocking it all but I think you would be creating new problems.