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Old 04-27-2012, 12:50 PM   #1
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1972 27' Overlander
Penokee , Kansas
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72 Overlander furnace blower

Hello all,,,

Searched and looked but just cant find the info I am looking for..

Our furnace works just fine.. But I can tell that the blower motor is needing a shot of oil.. It does not squeal or such but just sounds like the bearings are dry..

I would guess they were made to never be serviced but my goodness we are looking at 40 years now without any support.

I have studied it for hours to try and understand if there is a panel that could come off in place or does the entire unit need to be removed for any service..

Remove the gas line,, check,, DC wires check,, but does the heater just sit on top of the duct work or is that another problem?

Any help is more than welcome. .

Sodbust
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Old 04-27-2012, 01:02 PM   #2
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this thread has some info:
http://www.airforums.com/forums/f427...ace-60957.html

when searching, use the google search since it works best. these results came up:
furnace blower oil bearing - Google Search

i hope it is what you're looking for :-)
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Old 04-27-2012, 01:13 PM   #3
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I think you will find the entire unit needs to come out. While the furnace in our Argosy is not the same as yours. I think.
Because the duct work enters the sides.
I had to remove the entire furnace. It was one that had been on the recall list. So I wanted to check it out. Especially the infamous cross over tube.
The unit checked out fine. Actually, I don't believe it had ever been fired up. If so, not much.
It works great. You can hardly hear it running.
If only the AC was that quiet.
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Old 04-27-2012, 01:14 PM   #4
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Noise was the missing link I needed.

Quote:
Originally Posted by richinny View Post
this thread has some info:
http://www.airforums.com/forums/f427...ace-60957.html

when searching, use the google search since it works best. these results came up:
furnace blower oil bearing - Google Search

i hope it is what you're looking for :-)
Like any search the key word is the key,,,

Thanks and I see Andy speaks of oiling the motor..

Now does the entire unit come out or can a panel come off while in place..?

Thanks

Sodbust
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Old 04-27-2012, 01:39 PM   #5
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sorry, i work the reference dept., lol. you'll have to wait for someone that can verify the make and has actually done one ;-)
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Old 04-29-2012, 09:52 AM   #6
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Went out and looked the project over and fear I will just put it off till it gets cold again.. Axles must be done first so did that and a little winded today..

Thanks for the ideas and support.. Saved this data for later ..

Sodbust,,
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Old 04-29-2012, 10:07 AM   #7
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You do need to pull out the unit, but not quite the whole thing. 1. Disconnect gas and electrical lines 2. Remove inlet/ outlet cover from outside coach. 3. Remove screw at front bottom of unit that holds innards to the cabinet. 4. Slide out the innards towards the center of the unit on track

Personally I would replace the whole unit because parts are hard to find and even harder is to get a tech to work on a furnace this old. As a second choice I would replace the whole motor.

I may be wrong but I don't think the bearings can be lubricated.
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