Home » Public Forums » GMCnet » [GMCnet] adjuster for A/C
| [GMCnet] adjuster for A/C [message #200804] |
Wed, 06 March 2013 17:40  |
Gary Worobec
Messages: 867
Registered: May 2005
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With all due respect to the actual "rocket scientists" we have in this group
(and I mean that sincerely) why doesn't someone come up with an easy
adjuster for the damn A/C compressor. I've probably spent more on Band-Aids
than the damn thing would cost to make. Grrrrrr....
Thanks,
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
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| Re: [GMCnet] adjuster for A/C [message #200805 is a reply to message #200804] |
Wed, 06 March 2013 18:10  |
An87ttype
Messages: 157
Registered: September 2012
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I just skinned my knuckles playing with that belt this weekend! No fun...I did see that Jim K has one for the AC like the one for the alt belt. I dont know how well they work but I might get both.
1975 Eleganza II
Hudson Valley NY
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| Re: [GMCnet] adjuster for A/C [message #200812 is a reply to message #200808] |
Wed, 06 March 2013 19:31 |
Gary Worobec
Messages: 867
Registered: May 2005
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Yes Gene I did look at this. But I cannot get a good enough picture to see
if it actually works. Hopefully the inventor will call me before I drop 60
bucks.
Thanks,
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of gene Fisher
Sent: Wednesday, March 06, 2013 4:39 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] adjuster for A/C
did you look here?
http://www.bdub.net/bovee/BoveeProducts.pdf
gene
On Wed, Mar 6, 2013 at 3:40 PM, Gary Worobec <gtw5@earthlink.net> wrote:
> With all due respect to the actual "rocket scientists" we have in this
> group (and I mean that sincerely) why doesn't someone come up with an
> easy adjuster for the damn A/C compressor. I've probably spent more on
> Band-Aids than the damn thing would cost to make. Grrrrrr....
>
>
>
> Thanks,
>
>
>
> Gary and Joanne Worobec
>
> 1973 GMC Glacier
>
> Anza, CA
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Gene Fisher -- 74-23,77PB/ore/ca
"Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] adjuster for A/C [message #200818 is a reply to message #200804] |
Wed, 06 March 2013 20:07 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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When I resealed mine, I took the fender liner out - a relatively simple task - to make it easier to get the hose assembly off and back on. Working from the wheel well, it was quite easy to set the belt tension. I don't think I'd want to try it through the engine hatch.
--johnny
'76 23' transmode norris
'76 palm beach
From: Gary Worobec <gtw5@earthlink.net>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, March 6, 2013 6:40 PM
Subject: [GMCnet] adjuster for A/C
With all due respect to the actual "rocket scientists" we have in this group
(and I mean that sincerely) why doesn't someone come up with an easy
adjuster for the damn A/C compressor. I've probably spent more on Band-Aids
than the damn thing would cost to make. Grrrrrr....
Thanks,
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
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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] adjuster for A/C [message #200835 is a reply to message #200804] |
Thu, 07 March 2013 02:52 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
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| Gary Worobec wrote on Wed, 06 March 2013 15:40 |
With all due respect to the actual "rocket scientists" we have in this group (and I mean that sincerely) why doesn't someone come up with an easy adjuster for the damn A/C compressor. ...
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I use a "sticK" (a length of 2x2 would work) and the jack from the sidekick. I place the jack under the coach and use the "stick" to "jack up" the alternator or AC compressor until the belts are tight enough... then tighten the bolts.
While I do have to go back and forth (inside and out) a few times for each belt, I find it much easier than the pry/hold and tighten methods.
JWID.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] adjuster for A/C [message #200887 is a reply to message #200804] |
Thu, 07 March 2013 11:45 |
Edward Jarmul
Messages: 30
Registered: November 2012
Karma: 0
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On the subject of A/C belt adjusters, my Saab 900 has one that works very
well considering the rear mounting of the accessory belts. There's one on
eBay (
http://www.ebay.com/itm/85-91-Classic-Saab-900-2-0L-Turbo-16-V-AC-Belt-Idler-Pulley-Adjustment-Bolt-/251219945480?pt=Motors_Car_Truck_Parts_Accessorie s&hash=item3a7de02808&vxp=mtr)
that, with some (a lot?) modifications, may be used on the GMC as well. A
better alternative is one of the GMCers/Jim's, in their spare time if they
have any, could fabricate one similar to the GMC alternator belt tensioner.
My eventual solution, given the issues I've had with the original unit
design, may be a Vintage Air A/C system complete with heater, compressor,
condensor and evaporator. I'm not sure if there's one adaptable to the GMC
but they have a complete system for my, V-belt driven, '69 Corvette I
intend to instal later this year. If that goes well, I'll try a unit in my
'73 GMC.
EdJ
Martinsburg, WV
'73 Glacier 26' 455
'77 Coca-Cola 26' 403
'69 Vette Coupe
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| Re: [GMCnet] adjuster for A/C [message #200904 is a reply to message #200887] |
Thu, 07 March 2013 15:29 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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ED,
If you want to add a Vintage Air (VA) system the only thing you'll need is the VA unit, hoses, and T-fittings. The GMC condenser and
compressor have more than enough capacity.
The problem you'll run into is locating the VA unit so it doesn't interfere with access to the Powerlevel valves.
I verified that there is enough room between the floorboards and the back of the OEM A/C unit to cut a hole to sink it into. That
will require a box to isolate the VA from the outside.
Regards,
Rob M.
-----Original Message-----
From: Edward Jarmul
My eventual solution, given the issues I've had with the original unit
design, may be a Vintage Air A/C system complete with heater, compressor,
condensor and evaporator. I'm not sure if there's one adaptable to the GMC
but they have a complete system for my, V-belt driven, '69 Corvette I
intend to instal later this year. If that goes well, I'll try a unit in my
'73 GMC.
EdJ
Martinsburg, WV
'73 Glacier 26' 455
'77 Coca-Cola 26' 403
'69 Vette Coupe
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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] adjuster for A/C [message #200910 is a reply to message #200804] |
Thu, 07 March 2013 15:48 |
Don A
Messages: 895
Registered: October 2008
Location: Dallas, TX
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"with an easy adjuster for the"
I don't know if this would work on the A/C belt because mine doesn't need adjusting, no charge in the system. 
But talk about cheap, easy and quick
http://www.gmcmhphotos.com/photos/samuri/p42825-belt-tensioner.html
Two standoffs, a bolt and a nut from the hardware store. Drill one hole all the way through one standoff and through just one side of the other. Leave the two bolts on the alternator slightly loose, hold the nut still with one wrench, ratchet the bolt until you get the belt tight as you want it, then tighten up all the mounting bolts. Leaving the "adjuster" bolt and nut on or take them off if you want.
Don Adams Dallas, TX
'76 26' Glenbrook, '90 Sidekick
rebuilt by R Archer, powered by J Bounds, Koba
[IMG]http://www.gmcmhphotos.com/photos/data/6109/G2.jpg[/IMG]
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| Re: [GMCnet] adjuster for A/C [message #200921 is a reply to message #200914] |
Thu, 07 March 2013 17:08 |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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| Edward Jarmul wrote on Thu, 07 March 2013 16:13 |
...On the A/C issues in general, the other options don't address the compressor/evaporator/condenser/fan issues for the old original design; great then but definitely not state of the art today and far less efficient. All use the A6 as the single cooler that would be even more strained with additional loads.
EdJ
Martinsburg, WV
'73 Glacier 26' 455
'77 Coca-Cola 26' 403
'69 Vette Coupe 350/350
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The A6 is "bulletproof", and can easily handle an additional evaporator like the "Vintage Air" units. The A6 can remove about 13,500 BTUs, the same as a roof air. It is far from "strained". The problems with the OEM AC are with the air handling and heat exchange capabilities of the dash part. See http://www.gmcws.org/Tech/air_conditioning/air_conditing.html
I don't think the "Vintage Air" units have a heater core in them, so that is a bit of a disadvantage.
Not sure what issues there are with the compressor/evaporator/condenser/fan, but you won't cobble together anything "state of the art today" that will significantly increase the efficiency without sacrificing something else, like reliability and capacity.
If you have your heart set on replacing your A6 compressor, check out http://www.bdub.net/Modern_AC_Compressor_Replacement.pdf
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| Re: [GMCnet] adjuster for A/C [message #200956 is a reply to message #200914] |
Thu, 07 March 2013 21:17 |
Edward Jarmul
Messages: 30
Registered: November 2012
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Wow, didn't realize there are that many A6 fans of which I am one as well
but also have a wealth of mixed experience. No question it is a reliable
(bulletproof) unit and the only compressor I liked better was the one in my
wife's 1970 Toyota Corolla MKII. a reciprocating piston unit (Nippondenso?)
that finally needed replacement in 1985. The lower mileage junkyard donor
still had a full charge or at least more than I've seen in a 15 year old
unit. My Chevy Van had an A6 compressor with a rear air unit/separate
expansion valve that worked some of the time and I've had several Cadillacs
with A6 compressors again with mixed reviews. The worst experience was in
my 1971 Vette with a 454 big block that, while on a drive from DC to LA, I
had to drive under 70 when using the A/C to keep from overheating. These
issues may not be directly related to the compressor itself but the history
is hard to ignore.
High output, no question. Ditto on the reliability but I still question
it's efficiency, i.e., it's ability to produce sufficient cooling with
minimal input (HP) especially compared with the newer designs. The biggest
problem, according to at least one A/C professional, with the newer radial
compressors is the demand for no contaminants in the system. Due to the
close tolerances between the high speed blades and the compressor housing,
even the smallest particles will trash even a new compressor (needed more
than one to successfully replace mine in a Subaru). That's why I wouldn't
just put in a new compressor (even with a system flush as well) for a
reliable system, hence my preference for the complete Vintage AIr package
as the "ultimate" solution to the cooling problem. FYI, the complete system
includes the heater as well.
EdJ
Martinsburg, WV
'73 Glacier 26' 455
'77 Coca-Cola 26' 403
'69 Vette Coupe
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| Re: [GMCnet] adjuster for A/C [message #200978 is a reply to message #200956] |
Fri, 08 March 2013 06:54 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Ed,
To me the question becomes just how much HP are you going to gain by installing a high efficiency and since the application is an RV
would it justify the expense and time to do it?
Regards,
Rob M.
-----Original Message-----
From: Edward Jarmul
Wow, didn't realize there are that many A6 fans of which I am one as well
but also have a wealth of mixed experience. No question it is a reliable
(bulletproof) unit and the only compressor I liked better was the one in my
wife's 1970 Toyota Corolla MKII. a reciprocating piston unit (Nippondenso?)
that finally needed replacement in 1985. The lower mileage junkyard donor
still had a full charge or at least more than I've seen in a 15 year old
unit. My Chevy Van had an A6 compressor with a rear air unit/separate
expansion valve that worked some of the time and I've had several Cadillacs
with A6 compressors again with mixed reviews. The worst experience was in
my 1971 Vette with a 454 big block that, while on a drive from DC to LA, I
had to drive under 70 when using the A/C to keep from overheating. These
issues may not be directly related to the compressor itself but the history
is hard to ignore.
High output, no question. Ditto on the reliability but I still question
it's efficiency, i.e., it's ability to produce sufficient cooling with
minimal input (HP) especially compared with the newer designs. The biggest
problem, according to at least one A/C professional, with the newer radial
compressors is the demand for no contaminants in the system. Due to the
close tolerances between the high speed blades and the compressor housing,
even the smallest particles will trash even a new compressor (needed more
than one to successfully replace mine in a Subaru). That's why I wouldn't
just put in a new compressor (even with a system flush as well) for a
reliable system, hence my preference for the complete Vintage AIr package
as the "ultimate" solution to the cooling problem. FYI, the complete system
includes the heater as well.
EdJ
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GMCnet mailing list
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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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