| AC Question [message #303653] |
Sat, 16 July 2016 12:29  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma:
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Senior Member |
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During the process of trying to replace the blower motor on my dash air, I discovered that my '75 coach has the recirc door in the blower housing that, according to Zay Brand, is typical on '73 & '74 models. I tried operating the vacuum servo with a vacuum pump, and it did work. However, it does nothing with the coach running (17 - 18" vacuum) and the AC on. I looked over the controls behind the dash and didn't spot anything amiss there.
I am wondering if anyone has any pointers on a. - how to fix it properly so it works the way it should, or b. - if it is a good idea to pull that door up into the recirc position and put a screw in it to keep it there. That way, according to Zay Brand's essay, I will get 80% recirc on the AC instead of 100% outside air.
Maybe my coach has a '74 dash air unit. The SN is TZE 165V101455, so it's not really an early '75 coach, but it has the full length body pads like the earlier coaches had. This might explain why the blower motor I got from Applied didn't fit (goes in the hole too far). I blew out the old motor and lubed it up and it will have to do until we can straighten out the motor issue.
Thanks
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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