New crate 454
Last month I broke the crank in my 1988 Winnebago Super Chief. It had only 57,000 miles on it. I located a GM crate engine 454. I took my time and installed the engine piece by piece. I went with a n...
Forum Discussion
While we're talking engine cooling,
NEVER - Like Friends Don't let Friends.... Put a Flex Fan on an RV or Tow Vehicle!!! - NEVER
Why? You gear down to climb a steep grade. Engine Revs go UP, Heat Load goes UP. But Flex Fan FLATTENS because of the RPM. That's how they work. You're trying to cool a revving engine at wide open throttle, with a Flat Fan.
The problem with the typical Fan/Fan Clutch setup is that once the OEM clutch fails, it's very hard to get a suitable aftermarket replacement, and the OEM may well have discontinued the original. Hayden is a great product line, yet RV results with their "severe duty" replacement have been spotty. Still, we gotta do it. If we can't get OEM there's not much choice.
NEVER - Like Friends Don't let Friends.... Put a Flex Fan on an RV or Tow Vehicle!!! - NEVER
Why? You gear down to climb a steep grade. Engine Revs go UP, Heat Load goes UP. But Flex Fan FLATTENS because of the RPM. That's how they work. You're trying to cool a revving engine at wide open throttle, with a Flat Fan.
The problem with the typical Fan/Fan Clutch setup is that once the OEM clutch fails, it's very hard to get a suitable aftermarket replacement, and the OEM may well have discontinued the original. Hayden is a great product line, yet RV results with their "severe duty" replacement have been spotty. Still, we gotta do it. If we can't get OEM there's not much choice.
