Home » Public Forums » GMCnet » Dead AC Compressor?
| Dead AC Compressor? [message #83832] |
Sun, 09 May 2010 19:58  |
Rick Denney
Messages: 430
Registered: January 2004
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So, while dealing with the leaking thermostat housing, I had to get under the coach to drain the radiator down a bit. While down there, I noticed oily drippage on the lower tranny cooling line. I just replaced those lines with stainless lines about a year ago, so I wasn't happy to see that. But I could find no evidence of leakage at the flare fitting into the radiator. The lower radiator hose was also wet with oily stuff, but the upper tranny line wasn't.
I poked a flashlight up into the engine compartment from below, and the oil is dripping from the bottom of the AC pulley. Up above that, everything is dry. This is coming from the front of the compressor.
Of course, I just installed all new AC componentry within the last coupla years. The compressor was set up for R134, and I used green O-rings on everything, installing new hoses, expansion valve, and dryer. I cleaned out both coils, so everything was pretty clean. I filled the rebuilt compressor (Four Seasons) with supposedly the right amount of ester oil, which is compatible with both R12 and R134, and then vacuumed it down thoroughly and charged it with HC12a. It has been working fine since then except for one mysterious fuse-blowing incident early on that has never repeated itself.
The driveway indicates that the oil drippage has been slow, but it has been going on for a while. I had seen the evidence on the gravel for months, but thought it was left over from the last time I put oil in the engine when I had some spillage. I have to rake my gravel a lot to get rid of that evidence.
So, have I lost the front seal on the compressor? Is this a sign of having used the wrong amount of oil, or is it just a cheap-crap rebuild?
If the compressor is leaking, then I'll have to replace it, of course. How easy is it to replace it with a Sanden? (My definition of easy: Uses the same bracket, hoses, and requires no custom fabriation that I can't do myself--and someone knows the necessary part numbers to make it easy). If not, where does one buy a NEW A6 compressor?
Rick "getting TIRED of doing the same things over and over and over" Denney
'73 Glacier 230 "Jaws"
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| Re: Dead AC Compressor? [message #83835 is a reply to message #83832] |
Sun, 09 May 2010 20:36  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Rick
I would say it is the latter a cheap crap rebuild and another compressor is in your future if you don't want to take a chance replacing the shaft seal. If the bearing isn't real good the new seal will leak in a short time. I would trade seal problems with you however. My new motor has developed a leak in the rear main seal. The 460 ford lip seal just didn't cut it this time and the thought of pulling the trans to fix it has me procrastinating.
Roy
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Dead AC Compressor? [message #83844 is a reply to message #83832] |
Sun, 09 May 2010 21:58 |
GMCWiperMan
Messages: 1248
Registered: December 2007
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Rick,
The Sanden/Clone replacement of the AC on the Olds is trivially easy. Those
with the 4 bolt holes spaced 90* around the front will bolt up to the flat
steel plate at the front of the A-6 with only minor elongation of the holes
in the plate. The cast iron stuff can go to the salvage yard. While I've
only done mine with a serpentine belt, everyone I've talked to says the
V-belts line up perfectly also. Just the front mounting is very sturdy, but
I added a rear strut from a double-ended head bolt for suspenders.
The hoses were not so simple for me. I had to have them specially made to
adapt the GMC hoses to the Sanden. I've never actually seen a Sanden/Clone
with the GMC-style connections, though they're shown in the Sanden manual,
but I"ve recently heard that they're used on many heavy trucks. I know
there are LOTS of junkyards for those around there. :-)
I got my NEW clone on eBay a couple of years ago for, IIRC, $75. The hoses
cost about the same, maybe a little more. The Sanden 508, small as it is,
outperforms the recently rebuilt (for AC) A-6 I replaced -- just so I
wouldn't have to lift the A-6 again.
Ken H.
On Sun, May 9, 2010 at 8:58 PM, Rick Denney <rick@rickdenney.com> wrote:
> ...
If the compressor is leaking, then I'll have to replace it, of course. How
> easy is it to replace it with a Sanden? (My definition of easy: Uses the
> same bracket, hoses, and requires no custom fabriation that I can't do
> myself--and someone knows the necessary part numbers to make it easy). If
> not, where does one buy a NEW A6 compressor?
>
> Rick "getting TIRED of doing the same things over and over and over" Denney
> --
> '73 Glacier 230 "Jaws"
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: Dead AC Compressor? [message #83847 is a reply to message #83832] |
Sun, 09 May 2010 22:22 |
Rick Denney
Messages: 430
Registered: January 2004
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| Rick Denney wrote on Sun, 09 May 2010 20:58 |
If not, where does one buy a NEW A6 compressor?
|
In doing a little googling before bed, I ran across this:
http://www.nostalgicairparts.com/air-conditioning/gm-a-6-replacment-compressor-black-673.php
(piece it together if you have to--I'm stuck with whatever the forum does to long URLs).
They list this as a direct bolt-in replacement for an A6, but made of aluminum and using Nippondenso-like innards. Might be just the ticket. Not that expensive.
And they say it can be use with either 12 or 134, suggesting to me that it's charged with ester oil. I've sent them a message asking about it and will report back when I get an answer.
Could this be the answer as an improved direct replacement?
Vintage Air has a Sanden with A6-style hose fittings, but the mounting isn't the same and they show applications only for Chevies. Probably one of those would work, too, if I can know which one to ask for in order to get the right pulley spacing.
Rick "throwing some more data out there" Denney
'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Dead AC Compressor? [message #83851 is a reply to message #83844] |
Sun, 09 May 2010 22:32 |
Rick Denney
Messages: 430
Registered: January 2004
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| GMCWiperMan wrote on Sun, 09 May 2010 22:58 |
The hoses were not so simple for me. I had to have them specially made to adapt the GMC hoses to the Sanden. I've never actually seen a Sanden/Clone with the GMC-style connections, though they're shown in the Sanden manual, but I've recently heard that they're used on many heavy trucks. I know there are LOTS of junkyards for those around there. 
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No junkyards around here, and no places I've been able to find that can make hoses. When I did this before, after much searching, I ended up buying new hoses from Cinnabar. I don't want to buy hoses again, even if I save a tone on the compressor.
Vintage Air does show a Sanden with a rear A6 header. It's shown on this catalog page:
http://www.vintageair.com/catalog09/09%20VintageAir%20Catalog%2055.pdf
Take a look at that and see if that's the same thing you have, except equipped for an A6 hose header.
Everything I've read suggests that Sandens come pre-oiled with PAG oil in the viscosity for the application, which would probably be PAG 100 for the applications they list for this compressor. That would require me to flush it completely--I think--since I used ester oil when I rebuilt the system. How did you deal with oiling?
Rick "thinking we need a better option than a poorly remanned Four Seasons A6" Denney
'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Dead AC Compressor? [message #83856 is a reply to message #83851] |
Sun, 09 May 2010 23:01 |
GMCWiperMan
Messages: 1248
Registered: December 2007
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Yep, that's the li'l booger.
So is this, sorta:
http://cgi.ebay.com/ebaymotors/New-Freightliner-Air-Conditioning-A-C-Compressor-_W0QQcmdZViewItemQQhashZitem5ad9568312QQitemZ390193382162QQptZMotorsQ5 fCarQ5fTruckQ5fPartsQ5fAccessories#ht_3341wt_932
< http://cgi.ebay.com/ebaymotors/New-Freightliner-Air-Conditioning-A-C-Compressor-_W0QQcmdZViewItemQQhashZitem5ad9568312QQitemZ390193382162QQptZMotorsQ5 fCarQ5fTruckQ5fPartsQ5fAccessories#ht_3341wt_932>That
one has a serpentine pulley like mine, of course, is probaly lubed for 134a,
and obviously doesn't have the A-6 fittings. But it is a 15 ci compressor
rather than an 8, like mine, so it should pump even better, which is the
main reason I'm posting it.
Since they mention plans to post lots more compressors, I'd contact them to
see if they can come up with a 13ci - 15 ci direct A-6 replacement,
including R-12, V-belt pulleys, and A-6 fittings.
Ken H.
On Sun, May 9, 2010 at 11:32 PM, Rick Denney <rick@rickdenney.com> wrote:
>
>
> GMCWiperMan wrote on Sun, 09 May 2010 22:58
> > The hoses were not so simple for me. I had to have them specially made
> to adapt the GMC hoses to the Sanden. I've never actually seen a
> Sanden/Clone with the GMC-style connections, though they're shown in the
> Sanden manual, but I've recently heard that they're used on many heavy
> trucks. I know there are LOTS of junkyards for those around there. :)
>
>
> No junkyards around here, and no places I've been able to find that can
> make hoses. When I did this before, after much searching, I ended up buying
> new hoses from Cinnabar. I don't want to buy hoses again, even if I save a
> tone on the compressor.
>
> Vintage Air does show a Sanden with a rear A6 header. It's shown on this
> catalog page:
>
> http://www.vintageair.com/catalog09/09%20VintageAir%20Catalog%2055.pdf
>
> Take a look at that and see if that's the same thing you have, except
> equipped for an A6 hose header.
>
> Everything I've read suggests that Sandens come pre-oiled with PAG oil in
> the viscosity for the application, which would probably be PAG 100 for the
> applications they list for this compressor. That would require me to flush
> it completely--I think--since I used ester oil when I rebuilt the system.
> How did you deal with oiling?
>
> Rick "thinking we need a better option than a poorly remanned Four Seasons
> A6" Denney
> --
> '73 Glacier 230 "Jaws"
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] Dead AC Compressor? [message #83861 is a reply to message #83847] |
Sun, 09 May 2010 23:57 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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Rick,
I have that compressor from Nostalgic Air.
It has a two groove pulley on the front. I can't tell
you much about fit on an olds as I have a Caddy.
But, it does have the openings on the back for the
GM manifold.
Gary Kosier
----- Original Message -----
From: "Rick Denney" <rick@rickdenney.com>
To: <gmclist@temp.gmcnet.org>
Sent: Sunday, May 09, 2010 11:22 PM
Subject: Re: [GMCnet] Dead AC Compressor?
>
>
> Rick Denney wrote on Sun, 09 May 2010 20:58
>> If not, where does one buy a NEW A6 compressor?
>
>
> In doing a little googling before bed, I ran across this:
>
> http://www.nostalgicairparts.com/air-conditioning/gm-a-6-replacment-compressor-black-673.php
>
> (piece it together if you have to--I'm stuck with whatever the
> forum does to long URLs).
>
> They list this as a direct bolt-in replacement for an A6, but
> made of aluminum and using Nippondenso-like innards. Might be
> just the ticket. Not that expensive.
>
> And they say it can be use with either 12 or 134, suggesting to
> me that it's charged with ester oil. I've sent them a message
> asking about it and will report back when I get an answer.
>
> Could this be the answer as an improved direct replacement?
>
> Vintage Air has a Sanden with A6-style hose fittings, but the
> mounting isn't the same and they show applications only for
> Chevies. Probably one of those would work, too, if I can know
> which one to ask for in order to get the right pulley spacing.
>
> Rick "throwing some more data out there" Denney
> --
> '73 Glacier 230 "Jaws"
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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List Information and Subscription Options:
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| Re: [GMCnet] Dead AC Compressor? [message #83862 is a reply to message #83856] |
Mon, 10 May 2010 00:12 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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Hey Ken,
As the Hertz ads say, Not Exactly!
That SD7H15 is the R-134 equivalent of the SD709 on R-12.
The 09 is cubic inches and the H15 is cubic centimeters(divided
by 10) And, of course, Sanden no longer sells any R-12
compressors,
hence the clones.
Gary Kosier
----- Original Message -----
From: "Ken Henderson" <ken0henderson@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Monday, May 10, 2010 12:01 AM
Subject: Re: [GMCnet] Dead AC Compressor?
> Yep, that's the li'l booger.
>
> So is this, sorta:
>
> http://cgi.ebay.com/ebaymotors/New-Freightliner-Air-Conditioning-A-C-Compressor-_W0QQcmdZViewItemQQhashZitem5ad9568312QQitemZ390193382162QQptZMotorsQ5 fCarQ5fTruckQ5fPartsQ5fAccessories#ht_3341wt_932
>
> < http://cgi.ebay.com/ebaymotors/New-Freightliner-Air-Conditioning-A-C-Compressor-_W0QQcmdZViewItemQQhashZitem5ad9568312QQitemZ390193382162QQptZMotorsQ5 fCarQ5fTruckQ5fPartsQ5fAccessories#ht_3341wt_932>That
> one has a serpentine pulley like mine, of course, is probaly
> lubed for 134a,
> and obviously doesn't have the A-6 fittings. But it is a 15 ci
> compressor
> rather than an 8, like mine, so it should pump even better,
> which is the
> main reason I'm posting it.
>
> Since they mention plans to post lots more compressors, I'd
> contact them to
> see if they can come up with a 13ci - 15 ci direct A-6
> replacement,
> including R-12, V-belt pulleys, and A-6 fittings.
>
> Ken H.
>
> On Sun, May 9, 2010 at 11:32 PM, Rick Denney
> <rick@rickdenney.com> wrote:
>
>>
>>
>> GMCWiperMan wrote on Sun, 09 May 2010 22:58
>> > The hoses were not so simple for me. I had to have them
>> > specially made
>> to adapt the GMC hoses to the Sanden. I've never actually
>> seen a
>> Sanden/Clone with the GMC-style connections, though they're
>> shown in the
>> Sanden manual, but I've recently heard that they're used on
>> many heavy
>> trucks. I know there are LOTS of junkyards for those around
>> there. :)
>>
>>
>> No junkyards around here, and no places I've been able to find
>> that can
>> make hoses. When I did this before, after much searching, I
>> ended up buying
>> new hoses from Cinnabar. I don't want to buy hoses again, even
>> if I save a
>> tone on the compressor.
>>
>> Vintage Air does show a Sanden with a rear A6 header. It's
>> shown on this
>> catalog page:
>>
>> http://www.vintageair.com/catalog09/09%20VintageAir%20Catalog%2055.pdf
>>
>> Take a look at that and see if that's the same thing you have,
>> except
>> equipped for an A6 hose header.
>>
>> Everything I've read suggests that Sandens come pre-oiled with
>> PAG oil in
>> the viscosity for the application, which would probably be PAG
>> 100 for the
>> applications they list for this compressor. That would require
>> me to flush
>> it completely--I think--since I used ester oil when I rebuilt
>> the system.
>> How did you deal with oiling?
>>
>> Rick "thinking we need a better option than a poorly remanned
>> Four Seasons
>> A6" Denney
>> --
>> '73 Glacier 230 "Jaws"
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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| Re: [GMCnet] Dead AC Compressor? [message #83890 is a reply to message #83862] |
Mon, 10 May 2010 06:32 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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OOOoop! They changed the scheme on me!
My apologies, world.
Ken H.
Americus, GA
'76 X-Birchaven
www.gmcwipersetc.com
On Mon, May 10, 2010 at 1:12 AM, Kosier <gkosier@roadrunner.com> wrote:
> Hey Ken,
>
> As the Hertz ads say, Not Exactly!
> That SD7H15 is the R-134 equivalent of the SD709 on R-12.
> The 09 is cubic inches and the H15 is cubic centimeters(divided
> by 10) And, of course, Sanden no longer sells any R-12
> compressors,
> hence the clones.
>
> Gary Kosier
>
> ----- Original Message -----
>
...
>
> <
> http://cgi.ebay.com/ebaymotors/New-Freightliner-Air-Conditioning-A-C-Compressor-_W0QQcmdZViewItemQQhashZitem5ad9568312QQitemZ390193382162QQptZMotorsQ5 fCarQ5fTruckQ5fPartsQ5fAccessories#ht_3341wt_932
> >That
> > one has a serpentine pulley like mine, of course, is probaly
> > lubed for 134a,
> > and obviously doesn't have the A-6 fittings. But it is a 15 ci
> > compressor
> > rather than an 8, like mine, so it should pump even better,
> > which is the
> > main reason I'm posting it.
> >
> > Since they mention plans to post lots more compressors, I'd
> > contact them to
> > see if they can come up with a 13ci - 15 ci direct A-6
> > replacement,
> > including R-12, V-belt pulleys, and A-6 fittings.
> >
> > Ken H.
> >
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Dead AC Compressor? [message #83900 is a reply to message #83858] |
Mon, 10 May 2010 07:41 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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| GMCWiperMan wrote on Mon, 10 May 2010 00:13 |
And here's how to change your hoses for Sanden/Seltec/etc:
|
It's tempting to go buy a hydraulic hose crimper. Buying a $600 tool to save $100 on a compressor sounds about right.
The Sanden with the A6 header fitting has those fittings on the side rather than at the back, so I don't think the hoses would fit on it without being modified.
And Gary's explanation of why there is no R12-style compressor from Sanden explains that issue. So, any actual Sanden will be filled, as per Sanden's documentation, with PAG. That eliminates that option, effectively.
As is usually the case with me, the time required to replace the compressor is more precious than the money, and I see the Sanden clone as a time-eater, mainly because of the hoses. And I have to add in the cost of a new dryer. If I replace the compressor using the existing hoses, I think I can keep the system open for a short enough period not to need a new dryer.
Rick "leaning in the A6-style direction again" Denney
'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Dead AC Compressor? [message #83904 is a reply to message #83861] |
Mon, 10 May 2010 07:54 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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| Kosier wrote on Mon, 10 May 2010 00:57 |
Rick,
I have that compressor from Nostalgic Air.
It has a two groove pulley on the front. I can't tell
you much about fit on an olds as I have a Caddy.
But, it does have the openings on the back for the
GM manifold.
|
The fact that you are using one and not complaining about it speaks volumes to me.
Do you normally have to change the pulley when moving an A6 from an Olds 455 to a Caddy engine? I'm thinking maybe not. If not, then those pulleys should work on the 455, too.
How much lighter is it? If they make it from aluminum, it ought to be considerably lighter than the A6, which I think must use lead-injected cast iron just to make it heavier.
I just heard the following back from Nostalgic Air:
"The compressor is used to replace the factory A6 as listed on the website. The compressor can be used with Ester oil, the oil that comes in the compressor has to be drained."
That suggests to me that the compressor comes with mineral oil in it. No problem draining that and putting in ester oil, so that I can say (with a straight face) that I "converted" the system to 134 before charging it with HC12a. Not that it matters--I found my stash of R12 (a nearly full 12-pound bottle) and can go that way, too.
Rick "curious about the weight" Denney
'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Dead AC Compressor? [message #83919 is a reply to message #83904] |
Mon, 10 May 2010 10:03 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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| Rick Denney wrote on Mon, 10 May 2010 08:54 |
Do you normally have to change the pulley when moving an A6 from an Olds 455 to a Caddy engine? I'm thinking maybe not. If not, then those pulleys should work on the 455, too.
|
Quoting myself, again. In a couple of places, it would appear that the same part number crosses between the Caddy Eldo applications and all the mid-70's Toro applications. The earlier Eldos used a two-groove pulley, but the later one seem not to have.
Rick "mighty tempted by a $150 hose crimper" Denney
'73 Glacier 230 "Jaws"
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| Re: [GMCnet] Dead AC Compressor? [message #83996 is a reply to message #83900] |
Mon, 10 May 2010 20:49 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Surely SOMEONE between where you live & Baltimore can crimp a hose fitting!
If you're going to use HC-12A/Duracool, I wouldn't change the
receiver/dryer, just vacuum it down for 24 hours for leak check and purging
of any moisture, then fill with the HC-12A. The hydrocarbons can't form
hydroflouric acid like the Freons can with just a little water. I would
plug the lines while they're disconnected though -- otherwise our dirt
daubers would seal them up for me; any your squirrels might eat 'em or
something.
Ken H.
On Mon, May 10, 2010 at 8:41 AM, Rick Denney <rick@rickdenney.com> wrote:
>
> ...
> It's tempting to go buy a hydraulic hose crimper. Buying a $600 tool to
> save $100 on a compressor sounds about right.
....
And I have to add in the cost of a new dryer. If I replace the compressor
> using the existing hoses, I think I can keep the system open for a short
> enough period not to need a new dryer.
>
> Rick "leaning in the A6-style direction again" Denney
> --
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Dead AC Compressor? [message #84002 is a reply to message #83996] |
Mon, 10 May 2010 21:20 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken et al,
Spot on!
No need to change the receiver/dryer; if you evacuate the system to a hard
vacuum for 24 hours the moisture in the system will sublimate (evaporate).
Rick,
IIRC you noted here that you had a Harbor Freight Vacuum pump, I bought the
same model after noting it would pump down to 25 microns. That is low enough
to dry the system out.
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Tuesday, 11 May 2010 11:50 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Dead AC Compressor?
Surely SOMEONE between where you live & Baltimore can crimp a hose fitting!
If you're going to use HC-12A/Duracool, I wouldn't change the
receiver/dryer, just vacuum it down for 24 hours for leak check and purging
of any moisture, then fill with the HC-12A. The hydrocarbons can't form
hydroflouric acid like the Freons can with just a little water. I would
plug the lines while they're disconnected though -- otherwise our dirt
daubers would seal them up for me; any your squirrels might eat 'em or
something.
Ken H.
On Mon, May 10, 2010 at 8:41 AM, Rick Denney <rick@rickdenney.com> wrote:
>
> ...
> It's tempting to go buy a hydraulic hose crimper. Buying a $600 tool to
> save $100 on a compressor sounds about right.
....
And I have to add in the cost of a new dryer. If I replace the compressor
> using the existing hoses, I think I can keep the system open for a short
> enough period not to need a new dryer.
>
> Rick "leaning in the A6-style direction again" Denney
> --
>
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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] Dead AC Compressor? [message #84060 is a reply to message #83996] |
Tue, 11 May 2010 10:03 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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| Ken Henderson wrote on Mon, 10 May 2010 21:49 |
Surely SOMEONE between where you live & Baltimore can crimp a hose fitting!
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You'd think. But there is exactly zero actual industry between here and Baltimore, except for farm stuff. And the one place on that route that promised me the power steering hoses they made for me could hold 3000 psi were unable to hold 0 psi--the PS fluid leaked out onto the ground before I could even start the engine.
(I figures to clamp a flat bar and rubber gasket over the header just as I pull off the hose, which I hope will keep much moisture from getting in there. And pulling a really hard vacuum is no problem, if'n that Harbor Freight vacuum pump doesn't burn up.)
Mostly, I'm just looking for the Easy button. Time is scarce. Of course, that's why I installed a remanned A6 in the first place.
By the way, what's the prescribed oiling when replacing a compressor? I figure at least half the oil will be elsewhere in the system. I seem to recall an amount of oil for a replacement that is less than for a fresh system.
Rick "who would be pleased, however, to be rid of the cast iron compressor mount" Denney
'73 Glacier 230 "Jaws"
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| Re: Dead AC Compressor? [message #84061 is a reply to message #83903] |
Tue, 11 May 2010 10:23 |
Rick Denney
Messages: 430
Registered: January 2004
Karma: 0
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Senior Member |
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| g.winger wrote on Mon, 10 May 2010 08:54 |
I just purchased a hose crimper. 150-160 plus the ride. So pretty I almost hate to clamp it in the vise. came with the dies. Got it off ebay. Send me your old hoses and new fittings and we'll give it a try. Or just come by, 1/2 between Columbia and st. louis.PL
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You mean like this one?
http://www.amazon.com/Mastercool-71550-Conditioner-Hose-Crimper/dp/B000WBQ4U2
Do you guys think this would work with the new hoses I bought from Cinnabar, and with the fittings as linked by Ken? For this price, I'd spend less on the crimper than I would save on the compressor, making it worth it. But not if the hoses are some dimension that won't work, or if the fittings won't fit in the hoses, or whatever. I just don't know enough about AC hoses.
Rick "wondering if regular hydraulic hose dies are available for that crimper" Denney
'73 Glacier 230 "Jaws"
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| Re: Dead AC Compressor? [message #84080 is a reply to message #83832] |
Tue, 11 May 2010 12:18 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Rick, don't over replace. There might be nothing wrong. All GM compressors leak at the front seal. Disuse is the number one enemy. Disuse over a wide temp range (cold shrinkage) parked outside over winter is worse. Maybe add some oil charge and top it off and USE it. Clean it off and run it, clean it off again after it slings the loose oil and then evaluate what is acceptable. GM cars alway have a slight streak on the hood pad in line with the pulleys. Doesn't mean it has failed.
John Lebetski
Woodstock, IL
77 Eleganza II
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