Re: BigKev's 1954 Packard Clipper Deluxe Sedan

Posted by HH56 On 2013/12/31 18:15:50

I believe the extension on the pump pulley is to give some clearance to the compressor belts and components more than to get fan closer to the radiator.

The belts are in a diagonal path to the lower crank drive pulley. The taper and width of the normal pump pulley may not have given enough clearance. There is also a large dual pulley idler assy located below the compressor and extending slightly in front of the engine which controls tension on the belts. That might have also caused clearance issues with the fan.