a/c and heater blower/fan question

john r. lebetski

New member
Dec 20, 2006
4,659
2
0
I have had good luck oiling the bearings with a zoom spout oiler. I also flush the commutator and brushes with Caig F5 spray. Flushes out spent carbon
and leaves behind a light safe lubricant. You can get to the end bearing through the cooling hole. If the lube has dried this works well. If bearimgs
have heen squealing might be too late. There are several motors listed in the interchange. Maybe take old one to NAPA. to match.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
I went through that drill a short time back.

First I ordered a new blower motor from Applied. It turned out to be a different configuration from the original (the motor was deeper into the
bracket) and didn't fit. I sent it back and then blew a large amount of dust out of my old motor, oiled it up, and ran it for a few months. It then
started to make noise again. I guess the bearings were too far gone to save with a fresh oil job.

I then picked up a new motor from my local parts house that fit fine with my original blower wheel. Some time later, the blower wheel got all wobbly
on the shaft and hogged out the hole. I then went through the process of finding a new wheel (not available by it's self) and ended up buying another
new motor with a blower wheel on it. It was the same motor I had received from Applied, but with a wheel attached to it that fit the AC box.

IIRC, the listing was for a '75 Toronado. I still have a next to brand new blower motor that doesn't fit my current setup.
--
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
 
I see John had the same issue I had and ended up double posting. :roll:
--
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
 
I bought it from Merle's Auto Parts here in Tucson (Parts Plus)

I don't remember the part number, but the GMCMI Parts Interchange has a few numbers that might get you started:

4 Seasons 35587
Murray 208990 or 208971

Those numbers are for '73 - 76 coaches. '77 & '78 are different.

Best chance of getting the right thing is to order one from Applied (motor and blower assy)
--
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
 
> Do you remember the part number from the 75 Toronado you found and where you bought it?

Sandy,

This is a great example of the sort of thing that will be easier if you:
A - Are a GMCMI member and/or know how to access the part interchange list
B - Fill in a sigfile with at least the specifics of the coach.

All of us are interested to assist you, but it is more difficult if we have no idea what specific coach you have. Lots of things changed through the
years of manufacturing and some matter a lot.

Example: For some coaches, the blower motor for a '75 Toro is not correct.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
what Matt is saying is true and I can tell you it's worth it.
You are always welcome to call us as we will help out by giving you part #
and tech help FREE!!!.
Figure it out; since we have a shop that work on these coaches, we mut have
parts and some smarts to help you.
Our Customer base is over 4.000 so we got that way with helping.
Use our toll free line for all your calls.

> > Do you remember the part number from the 75 Toronado you found and where
> you bought it?
>
> Sandy,
>
> This is a great example of the sort of thing that will be easier if you:
> A - Are a GMCMI member and/or know how to access the part interchange list
> B - Fill in a sigfile with at least the specifics of the coach.
>
> All of us are interested to assist you, but it is more difficult if we
> have no idea what specific coach you have. Lots of things changed through
> the
> years of manufacturing and some matter a lot.
>
> Example: For some coaches, the blower motor for a '75 Toro is not
> correct.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Sandy,
A 26', finished by Coachmen would be a Royale. The TZE (VIN) would start with "368Vxxxxxx".
--
John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
Web Site: GMCmhRegistry.com
Email: john at gmcmhregistry dot com
 
> Good idea
> What is the parts interchange list and how do you get on it?
> I see that most everyone has a short coach description at the bottom of their reply, I can't see anywhere to add that on.
> 78 GMC 26 foot, left factory as a transmode and was finished by Coachman, no model designation anywhere including the tag in the glovebox.

Sandy,

Sorry, I usually include that in the greeting that I usually write.

Goto
Scroll down some and you will find the place for a sigfile.
It will help if it has a real name so we can know who you are when we meet, a bit about the 78 Royale and include any major mods. A geographic
reference is also good because you probably have a brand new friend that is close by and a chapter you should hook up with as soon as practical.

'78 is probably why the fan motor was wrong. A lot changed in 77 and the HVAC was one of them.
If you look around at http://www.bdub.net/GMCLinks.html you can find the online interchange list.

Matt

--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit