Re: Change of radiator core affecting cooling performance in 1949, 23rd series

Posted by JWL On 2017/8/24 11:02:52

I had successful results using an after market 6-blade flex fan on a 55 Clipper Super. What Howard says about the water pump shaft diameter is true, and none of the modern fans have this diameter pilot hole. I used spacers under the four bolts to mount the fan so the pilot hole would clear the pump shaft. The bolt slots in the fan are at a diagonal in order to accommodate a variety of bolt patterns. Because of the diagonal shape they are self-centering. The fan was secure and true in my installation.

Packard 5-blade heavy duty fans are often for sale on eBay and in the For Sale sections of auto related websites, including this one. One of these fans would be desired over an after market flex type.

I had the radiator on my 47 Clipper Custom re-cored with a 4-row staggered tube type. I had good results with the re-cored radiator.

JWL