 Heater Blower Motor ~ Are these repairable?, ....loud squeals when running |
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| Woodside914 |
 Oct 14 2019, 11:39 AM
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#1
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Member  Group: Members Posts: 170 Joined: 19-May 10 From: Woodside, CA Member No.: 11,743 Region Association: Northern California 
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Other than removing the center nut holding the fan blades, is there any way to get inside this blower motor to repair or lubricate this motor from my 1971, or are these motors factory sealed?
It whines & squeals inside when it's run at medium-high speeds. I'd hate to replace the blower motor with another good used one (presuming I can find one), but I may be forced to if I cannot fix this. Has anyone had success on these? Thanks, Ken   |
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| Mikey914 |
Oct 14 2019, 11:41 AM
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#2
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The rubber man Group: Members Posts: 12,638 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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I'd bet it's rebuild-able. My guess is a bearing.
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| Woodside914 |
Oct 14 2019, 11:48 AM
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#3
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Member Group: Members Posts: 170 Joined: 19-May 10 From: Woodside, CA Member No.: 11,743 Region Association: Northern California
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QUOTE(Mikey914 @ Oct 14 2019, 10:41 AM)  I'd bet it's rebuild-able. My guess is a bearing. Yeah, that's my guess, too...the hard part is getting inside, and try to lubricate, but I'm willing to try....just need a lil guidance. |
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| 914Sixer |
Oct 14 2019, 07:03 PM
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#4
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914 Guru Group: Members Posts: 8,869 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Guessing maybe an alternator shop would be able to do something with it.
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| mepstein |
Oct 14 2019, 07:04 PM
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#5
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914-6 GT in waiting Group: Members Posts: 19,238 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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Electric motor repair shop.
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| Rob-O |
Oct 14 2019, 08:01 PM
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#6
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Senior Member Group: Members Posts: 1,251 Joined: 5-December 03 From: Mansfield, TX Member No.: 1,419 Region Association: Southwest Region
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You can get in them fairly easily. Pull the fan off. Under that should be two screws. Those two screws are holding the two tabs that you see sticking outside of the motor body (one is showing in your second pic, right near the wiring coming from the motor). Once the screws are out the whole back shell/cover of the motor comes off.
The bearing in the cover is tough to get out because it’s pressed into the end of the motor cover. The one in the main part of the body is easier. |
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| partwerks |
Oct 14 2019, 09:52 PM
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#7
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Senior Member Group: Members Posts: 1,593 Joined: 7-September 06 From: Grand Island, NE Member No.: 6,787 |
I think when I did mine a few years ago, after getting it tore apart, I just stood it upright, and put some oil around the bearing, and let it soak in.
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| Retroracer |
Oct 15 2019, 10:57 AM
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#8
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Senior Member Group: Members Posts: 609 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest
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<sorry, replied to wrong post>
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| Chris H. |
Oct 15 2019, 02:44 PM
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#9
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Senior Member Group: Members Posts: 4,028 Joined: 2-January 03 From: Chicago 'burbs Member No.: 73 Region Association: Upper MidWest
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There is/was a free one in the classifieds.
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| Woodside914 |
Oct 15 2019, 04:06 PM
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#10
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Member Group: Members Posts: 170 Joined: 19-May 10 From: Woodside, CA Member No.: 11,743 Region Association: Northern California
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So, I took the heater blower apart last night. Quite easy getting in there, but what an ugly mess inside! After some consideration (and a beer), I decided not to fuch with it any more, because I really don't know if I'd fix it correctly....and, I might really fuch it up!
So, at the good advice of some members here, this afternoon I took the motor to a local electric motor repair shop, in my case called Palo Alto Electric Motor Corporation. I think that was the right move, as they'll do a complete degrease cleaning, and shaft lubrication, and repaint the silver base & black housing for just one hour $140 labor charge. And, if I want to, they'll replace both sides worn brushes for about another $60. Ya know, I'm good on that. Whole lot quicker & easier for me...lol. If any of you guys are interested in getting your old & squeaky heater blower repaired , they're at (650) 493.5585 Regardless, thanks to all who chimed in here.... For grins, here is the base with the fan removed. Just pull the two retaining rings, and remove a couple bolts & screws, and it's apart....and, dirty as hell since 1971.    Cheers, Ken |
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| Rob-O |
Oct 15 2019, 05:32 PM
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#11
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Senior Member Group: Members Posts: 1,251 Joined: 5-December 03 From: Mansfield, TX Member No.: 1,419 Region Association: Southwest Region
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Wow that’s dirty! I think you made the right call!
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| Bartlett 914 |
Oct 16 2019, 07:57 AM
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#12
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Advanced Member Group: Members Posts: 2,214 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
That is not so bad. Really! Moisture has gotten in and did a little corrosion. Wire / sand off the obvious crud. Clean out the inside of the housing. Oil the bearings and reassemble. I doubt the bearing is even worn Your problem looks like age and some crud. Use a light oil and not WD40
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