Join Date: Sep 1999
Location: Des Moines, IA
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Re: The Old Heater Upgrade
At one of the NAPA's I went to for the blower motor, the parts guy said they had the squirrel cage in stock, but not the blower. That was before I heard about the new design of the squirrel cage. When I went back to check it out, he couldn't find the number for it anywhere, so I am not sure if NAPA has it or not. The local dealer doesn't stock the squirrel cage, so if I order it I have to keep it and I didn't want to buy it sight unseen. So I haven't been able to confirm the existance of the improved squirrel cage.
For enlarging the hole, I wanted mine to look good too. To make sure the center of the larger hole lined up with the center of the existing hole, I made a template out of cardboard. I glue a disk the size of the existing hole to a disk the size of larger hole, with the centers lined up. Then I just placed the template on the firewall with the smaller disk in the existing hole and traced around the larger disk. I used a Dremel with a tungsten bit to cut the metal.
After going through all that, I decided that a hole saw would probably work better. If I ever do it again, I plan on cutting a wood disk the same size as the existing hole and putting that on the drill bit of the hole saw to act as a pilot, so the larger hole will be centered to the existing hole.
My posts usually aren't this long, so I want credit for two on this one.
87 Cherokee 4.0, 90 Wrangler 4.2, 95 Wrangler 2.5