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Re: 1978 Ford F600 overheating problem - long post
Posted to HD/Fleet Forum on 5/25/1999

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is it using a clutch fan? If so,use a photo tach, is it turning 80% of engine RPM? If its not,is it becouse the center of the outside of the radiator dirty,not allowing true heat to engage it? Or poss... Login to read more.