Jaguar fan clutch is the way to go. Hayden produces two versions now, get the HD one. Make sure to adjust the thermal clutch before installing, which will provide increased engagement at lower operating temperatures, very simple to do. The issue without running a clutch, is that a mechanical fan will literally will rob 30-HP at higher engine speeds, while there is minimal horsepower losses running a clutch fan. We do so much to increase the power of these old engines, it's literally a cam swap in reverse going from a clutch fan to straight mechanical.
I believe you are correct.To me that clutch on it right now looks like the short hayden one.
Sometimes it simply can't be helped, short of major surgery to the radiator support - or of course,Jaguar fan clutch is the way to go. Hayden produces two versions now, get the HD one. Make sure to adjust the thermal clutch before installing, which will provide increased engagement at lower operating temperatures, very simple to do. The issue without running a clutch, is that a mechanical fan can rob upwards of 30-HP at higher engine speeds, while there is minimal losses running a clutch fan. We do so much to increase the power of these old engines, it's literally a cam swap in reverse going from a clutch fan to straight mechanical.
Yep.Is the Hayden 2947 the Jag clutch you speak of? Totally agree with the HP robbing fixed fan....
1/2" may be?Good question Mike..there's a lot of meat on that flange...
Clutch fans just don’t work for me. Flex fan and whichever spacer works great and nothing to grenade. Less weight and fewer moving parts. Just my opinion and experience and that’s all.
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This may sound like a dumb idea, butSo I knew some time ago this issue would come up...we always do. Here goes. 64 Sport Fury 426, correct Glen Ray 3 core radiator. With the adjustment maxed out I recently decided to replace my stretched & squealing alternator belt with a new one..I had forgot I installed the radiator lastly after installing what I thought/think is the correct? fan clutch. It was very tight with probably less than a half inch between it and radiator. So tight that now I cannot remove the alt belt. I have the original factory steel fan shroud which is immaterial. I cannot remove the fan clutch off of the studs without contacting the core. I will have to remove the radiator and figure out if in fact I have the correct fan clutch. Anyone with this setup ever have this issue?
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How do you adjust the clutch? I've put quite a few of these on and never heard of such a thing.Make sure to adjust the thermal clutch before installing, which will provide increased engagement at lower operating temperatures, very simple to do.
This was my first thought. I think it would work well.Maybe milling off a lil on the fan clutch mounting surface? Anyone tried that?