Originally Posted by Stu & Filo. T
I'd put in a electric one for around $150.00
depending on the engine there may not be an electric one available as a retrofit.. borg-warner does make a front air clutch now that is designed for retrofitting from a viscous clutch... the big issue is if the hub for the fan is the water pump shaft vs a timing gear driven water pump or an offset fan..
if the bus was built for an electric-air clutch (and has air brakes) then its not a bad swap but it can be a bad swap if its set up as viscous already..
to the OP!! is the grill area 1/2 radiator 1/2 turbo cooler? if so please tell your shop to adjust the on temperature of the fan clutch down a few degrees or you may have similar issues...
mine was pre-set at 170-175 degree air from the radiator.. I adjusted it to 150-155... now I get the fan roar whemn I see my dash temp gauge reach about 185 or so.. (thats when my bus isnt in Pieces..)