Home » Public Forums » GMCnet » [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed?
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328940 is a reply to message #328939] |
Wed, 07 February 2018 23:34   |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Bob, what the heck are you doing up on the top of your coach in the middle
of winter, checking on your Roof Air? Just wondering.
Jim Hupy
Salem, Or. ( where it was 60° and sunny today)
On Feb 7, 2018 9:29 PM, "Bob Dunahugh" wrote:
> I keep finding the Roof A/C air filters either not there, or not cleaned.
> It seems to be a filter that isn't well known about. Also on most roof
> units. There are oil ports on each end of the blower motor. Simple to find,
> and lube with a small amount of oil. Plus it's a good time to clean all the
> leafs out, and bee hives. As a note. The oil ports seem to have stopped
> being installed after January 1 of 1978. Bob Dunahugh
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328942 is a reply to message #328939] |
Thu, 08 February 2018 05:25 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Bob,
Do you think it would be possible to drill lube holes I motors that don't have them?
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bob Dunahugh
Sent: Thursday, February 8, 2018 4:29 PM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed?
I keep finding the Roof A/C air filters either not there, or not cleaned. It seems to be a filter that isn't well known about. Also
on most roof units. There are oil ports on each end of the blower motor. Simple to find, and lube with a small amount of oil. Plus
it's a good time to clean all the leafs out, and bee hives. As a note. The oil ports seem to have stopped being installed after
January 1 of 1978. Bob Dunahugh
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328943 is a reply to message #328939] |
Thu, 08 February 2018 06:23 |
Tilerpep
Messages: 404
Registered: June 2013
Location: Raleigh, NC
Karma: 7
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Senior Member |
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I messed around pretty thoroughly with my 13k and 11.5k 1975 units when I had to replace the capacitors, but never discovered oiler holes, and still don't have filters inside.
Pictures of the oil holes to gmcphoto site would be awesome if someone has, or will take some.
Ideas for what people are using for filter material is also appreciated.
1975 Glenbrook, 1978 Royale rear bath
Raleigh, NC
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328945 is a reply to message #328943] |
Thu, 08 February 2018 08:07 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Tacking onto this discussion... The interior ac panel has black foam glued
to it, which I assume is a measure of noise reduction? Possibly filtration?
It's quite old and deteriorating. In fact, small pieces blow out after what
I assume is jostling from the road. I plan to scrape it out. What would
you suggest replacing it with?
On Feb 8, 2018 7:42 AM, "Tyler" wrote:
> I messed around pretty thoroughly with my 13k and 11.5k 1975 units when I
> had to replace the capacitors, but never discovered oiler holes, and still
> don't have filters inside.
>
> Pictures of the oil holes to gmcphoto site would be awesome if someone
> has, or will take some.
>
> Ideas for what people are using for filter material is also appreciated.
> --
> 1975 Glenbrook, 1978 Royale rear bath
> Raleigh, NC
>
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328946 is a reply to message #328939] |
Thu, 08 February 2018 08:24 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I bought a square of filter material from the local hardware and cut filters to shape out of it. When they begin to look dirty I put in a new piece. Cheap and simple.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328951 is a reply to message #328950] |
Thu, 08 February 2018 15:08 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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I kinda figured it was something like that. I also have a heated shop for
GMC work. Just yanking your chain a little bit about the severity of the
winter weather. Don't think I will swap with you anytime soon. You make a
GREAT POINT about maintence. Lots better in a heated, well lighted, space
of our choosing, than the alternative of along the roadside in freezing
rain or snow.
Jim Hupy
Salem, Or.
On Feb 8, 2018 12:51 PM, "Bob Dunahugh" wrote:
> Well Jim. Yours maybe at 60 degrees there. But mine is always at 70. As I
> keep it in it's indoor climate controlled parking space. ( GRIN). Basically
> I try to work on it in the Winter. Drive in the Summer. As to oiling. The
> oil port will look like a round aluminum rivet head just above the bearing
> locations at each end. I've also found that some plugs are a yellow soft
> plastic plugs. As to drilling a hole a that location for oiling. I don't
> know. The filters are also for any window A/C unit. I also used the
> remnants to line the air duct in the faceplate. Used a contact adhesive. So
> sometime when your roof A/C blower motor dies. The oiling could have
> saved you buying a new A/C unit. Bob Dunahugh
>
>
> ________________________________
> From: Bob Dunahugh
> Sent: Wednesday, February 7, 2018 11:28 PM
> To: gmclist@list.gmcnet.org
> Subject: Have you kepted your roof A/C air filter clean, and blower lubed?
>
>
> I keep finding the Roof A/C air filters either not there, or not cleaned.
> It seems to be a filter that isn't well known about. Also on most roof
> units. There are oil ports on each end of the blower motor. Simple to find,
> and lube with a small amount of oil. Plus it's a good time to clean all the
> leafs out, and bee hives. As a note. The oil ports seem to have stopped
> being installed after January 1 of 1978. Bob Dunahugh
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328952 is a reply to message #328939] |
Thu, 08 February 2018 15:48 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I wouldn't driill oil holes in a motor without them. According to my bud who works locally at Baldor, permanently lubed bushings/bearings are not the same as oilable ones. You run a great chance of losing a metal partuicle in the bushing and achieving Condition Fubar. To re - oil a porus pe4rmanently oild bushing, put it in a pan of 40 weight and heat it and let it stay hot overnight. This should re - permeate it with oil.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328954 is a reply to message #328939] |
Thu, 08 February 2018 15:53 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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And as to an enclosed shop GMC size, Georgia weather isn't bad enough to justify the cost. I've asked 3 suppliers to quote me a 15 x 30 tin top with panels down the sides - 6 feet sun side, 3 feet other - to fit my pad, but no one has come up with a quote yet. All three are like 'materials are about this much and sooner or later a crew will come install.' Homey don't play that shit. First one to tell me price, date, and terms is likely to get the job. If none will, I'll build the thing myse'f this spring.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Have you kepted your roof A/C air filter clean, and blower lubed? [message #328981 is a reply to message #328939] |
Fri, 09 February 2018 10:15 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I bought sheet of open cell foam from McMaster years ago to reproduce the filter foam. Can't remember thickness I ordered or cells/in count but there are lots of choices. The one I got looked perfect and after cut to size I used small dabs of coear Goop adhesive to attach to grill. As far as the degrading sound insulation foam, I scraped that out and relined the surfaces with 2" wide sticky female Velcro to dampen resonance and drumming. I just put a drop or 2 of oil at the shaft/motor junctions with the Zoom spout oiler and hoped it would get into the bearings. Can't be sure but all rotate and coast freely.
John Lebetski
Woodstock, IL
77 Eleganza II
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