CUCV Heater/ Defroster Motor Assembly Upgrade

How to modify the heater blower motor to what was referred to as a arctic configuration when I was last in service. I'm really not sure why it was called that because its not the gas/fuel fired heater assembly like the swinggate type.

By doing this you will get an increase in air flow from the heater/defroster, any way this is what the mod amounts too.

Whats Needed:

A.

1. Blower motor from a Air Conditioned Chevy truck, 1973-1987 (?)

Siemens PM 102X 12V o3295

Napa 455-1039

2. Squirrel cage of the same years or there abouts, (these are larger and will hold at least 2 squirrels possibly 3 -- instead of 1)

Napa 655-1412

3. 1 inch long screws of the same diameter and thread pitch or you can simply re-thread the holes using a number 12 self tapping machine screw.

B:

Take the heater blower motor housing,

3. grind out the center hole where the Squirrel cage goes to match the new cage's diameter and they do vary in size due to re-manufacturing by different company's. (in other words the damn Chinese company's have problems using measuring tools!)

4. make a spacer ring, heavy Plexiglas or metal, at least 1/2 thick the same size as the flange on the heater motor making sure the cage will not rub when mounted to the shaft.

5. make two gaskets from quality rubberized victorpac material also sold at Napa

JV 127 1x32"

6. use a good military grade ATV on the gasgets and reassemble components with the 1" screws.