Home » Public Forums » GMCnet » AC Compressor leaking oil
| AC Compressor leaking oil [message #92216] |
Fri, 16 July 2010 17:11  |
Jon payne
Messages: 495
Registered: May 2008
Karma: 1
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Senior Member |
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Hi everyone,
This spring I did a complete rebuild on my dash air and just took our first long trip, some 1200 miles. Anyway after the trip I was checking under the hatch and noticed oil leaking from the front of the compressor.
I seem to recall from previous posts that some oil leakage could be normal but I can't seem to find them.
Should I be concerned about the leakage?
P.S. Our 1200 mile trip was wonderful. The GMC ran awesome - only hick-up was a blown rear tire. Oil usage was less then a quart and averaged around a disappointing 8mpg  That was with roof air off.
Jon Payne
76 Palm Beach
Westfield,IN
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| Re: [GMCnet] AC Compressor leaking oil [message #92218 is a reply to message #92216] |
Fri, 16 July 2010 17:29  |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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Jon,
Rick Denney mentioned a similar problem recently -- maybe someone knows where to look in the archive.
Or maybe he will pick up on this post.
Dennis
Dennis Sexton
73 GMC
Germantown, TN
USA
-----Original Message-----
From: Jon Payne <embrep@sbcglobal.net>
To: gmclist@temp.gmcnet.org
Sent: Fri, Jul 16, 2010 5:11 pm
Subject: [GMCnet] AC Compressor leaking oil
Hi everyone,
This spring I did a complete rebuild on my dash air and just took our first long
rip, some 1200 miles. Anyway after the trip I was checking under the hatch and
oticed oil leaking from the front of the compressor.
I seem to recall from previous posts that some oil leakage could be normal but I
an't seem to find them.
Should I be concerned about the leakage?
P.S. Our 1200 mile trip was wonderful. The GMC ran awesome - only hick-up was a
lown rear tire. Oil usage was less then a quart and averaged around a
isappointing 8mpg :( That was with roof air off.
--
on Payne/
6 Palm Beach/
estfield,IN
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: AC Compressor leaking oil [message #92274 is a reply to message #92216] |
Sat, 17 July 2010 11:59 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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It's ok for the front seal to weep a bit and that shows up as a film on close by parts, but a visible drip is not normal. I would keep an eye on it for a while and also see if you retain a charge before tearing it apart.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] AC Compressor leaking oil [message #92286 is a reply to message #92226] |
Sat, 17 July 2010 15:39 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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In that thread, I posted a couple of messages. One of them purported to
show a 15 ci Sanden. I've since been told that Sanden labels the
compressors differently for R-12 and R-134a, AFA displacement:
The SD508 and SD709 would have 5 pistons and 8 ci displacement, or 7
pistons and 9 ci displacement, respectively, and would be lubricated for
R12.
An SD7H15, on the other hand, would be have 7 pistons, be lubricated
for R134a ("h"), and have 15 cc (NOT ci) displacement.
Sorry for the bad poop -- and I can't verify this other than by reference to
a trusted source.
Ken H.
On Fri, Jul 16, 2010 at 8:06 PM, Dennis Sexton <dennisfsexton@aol.com>wrote:
> Jon, here is a link to the thread I mentioned in my previous post..
>
>
> http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=11786&prevloaded=1&rid=904&start=0
>
>
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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] AC Compressor leaking oil [message #92295 is a reply to message #92286] |
Sat, 17 July 2010 16:18 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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That doesn't sound right.
1000 cc = approximately 61 cu. in.
15 cc would be only .915 cu. in.
~ ~ ~ ~ ~ ~ ~ ~ ~
~ Mac Macdonald ~
~ Oklahoma City ~
~~ "Money Pit" ~~
~ '76 ex - P.B. ~
~ ~ ~ ~ ~ ~ ~ ~ ~
From: hend4800@bellsouth.net
Date: Sat, 17 Jul 2010 16:39:09 -0400
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] AC Compressor leaking oil
In that thread, I posted a couple of messages. One of them purported to
show a 15 ci Sanden. I've since been told that Sanden labels the
compressors differently for R-12 and R-134a, AFA displacement:
The SD508 and SD709 would have 5 pistons and 8 ci displacement, or 7
pistons and 9 ci displacement, respectively, and would be lubricated for
R12.
An SD7H15, on the other hand, would be have 7 pistons, be lubricated
for R134a ("h"), and have 15 cc (NOT ci) displacement.
Sorry for the bad poop -- and I can't verify this other than by reference to
a trusted source.
Ken H.
On Fri, Jul 16, 2010 at 8:06 PM, Dennis Sexton <dennisfsexton@aol.com>wrote:
Jon, here is a link to the thread I mentioned in my previous post..
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=11786&prevloaded=1&rid=904&start=0
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| Re: [GMCnet] AC Compressor leaking oil [message #92301 is a reply to message #92295] |
Sat, 17 July 2010 17:03 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Mac,
You're absolutely right, and I should have caught that. I suspect they drop
the final zero so that it's really 150 cc rather than 15 cc, which would
yield 9.15 ci, close 'nuff to 9 ci.
Maybe.
Ken H.
On Sat, Jul 17, 2010 at 5:18 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
> That doesn't sound right.
>
> 1000 cc = approximately 61 cu. in.
>
> 15 cc would be only .915 cu. in.
>
> ~ ~ ~ ~ ~ ~ ~ ~ ~
> ~ Mac Macdonald ~
> ~ Oklahoma City ~
> ~~ "Money Pit" ~~
> ~ '76 ex - P.B. ~
> ~ ~ ~ ~ ~ ~ ~ ~ ~
>
>
>
>
> From: hend4800@bellsouth.net
> Date: Sat, 17 Jul 2010 16:39:09 -0400
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] AC Compressor leaking oil
>
> In that thread, I posted a couple of messages. One of them purported to
> show a 15 ci Sanden. I've since been told that Sanden labels the
> compressors differently for R-12 and R-134a, AFA displacement:
>
> The SD508 and SD709 would have 5 pistons and 8 ci displacement, or 7
> pistons and 9 ci displacement, respectively, and would be lubricated for
> R12.
>
> An SD7H15, on the other hand, would be have 7 pistons, be lubricated
> for R134a ("h"), and have 15 cc (NOT ci) displacement.
>
> Sorry for the bad poop -- and I can't verify this other than by reference
> to
> a trusted source.
>
> 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] AC Compressor leaking oil [message #92303 is a reply to message #92301] |
Sat, 17 July 2010 17:18 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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That is what I suspected, also, but I haven't found any
details on the compressor through a Google search.
On another note, the compressor on my wife's 2002 Ford
Explorer is reported as "weak" by a local automotive
A/C shop. No leaks, and the pressures are good, but poor
cooling, especially in traffic and stopped at signals.
With the temperatures hear lately, it's quite uncomfortable.
I can get a complete Sanden "OEM" style compressor with
the associated parts for $315, but I sure don't know how
I would do the job myself here in OKC. Local shop quotes
about $950 for the job. I haven't gotten an estimate from
our local Ford dealer yet.
~ ~ ~ ~ ~ ~ ~ ~ ~
~ Mac Macdonald ~
~ Oklahoma City ~
~~ "Money Pit" ~~
~ '76 ex - P.B. ~
~ ~ ~ ~ ~ ~ ~ ~ ~
From: hend4800@bellsouth.net
Date: Sat, 17 Jul 2010 18:03:46 -0400
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] AC Compressor leaking oil
Mac,
You're absolutely right, and I should have caught that. I suspect they drop
the final zero so that it's really 150 cc rather than 15 cc, which would
yield 9.15 ci, close 'nuff to 9 ci.
Maybe.
Ken H.
On Sat, Jul 17, 2010 at 5:18 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
That doesn't sound right.
1000 cc = approximately 61 cu. in.
15 cc would be only .915 cu. in.
~ ~ ~ ~ ~ ~ ~ ~ ~
~ Mac Macdonald ~
~ Oklahoma City ~
~~ "Money Pit" ~~
~ '76 ex - P.B. ~
~ ~ ~ ~ ~ ~ ~ ~ ~
From: hend4800@bellsouth.net
Date: Sat, 17 Jul 2010 16:39:09 -0400
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] AC Compressor leaking oil
In that thread, I posted a couple of messages. One of them purported to
show a 15 ci Sanden. I've since been told that Sanden labels the
compressors differently for R-12 and R-134a, AFA displacement:
The SD508 and SD709 would have 5 pistons and 8 ci displacement, or 7
pistons and 9 ci displacement, respectively, and would be lubricated
for R12.
An SD7H15, on the other hand, would be have 7 pistons, be lubricated
for R134a ("h"), and have 15 cc (NOT ci) displacement.
Sorry for the bad poop -- and I can't verify this other than by reference
to a trusted source.
Ken H.
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| Re: [GMCnet] AC Compressor leaking oil [message #92309 is a reply to message #92303] |
Sat, 17 July 2010 18:42 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Mac,
Why don't you try just replacing the R134a with Duracool/HC12a? At $20 or
so, it's certainly worth a try. She may be pleasantly surprised at your
ingenuity.
Ken H.
On Sat, Jul 17, 2010 at 6:18 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
> That is what I suspected, also, but I haven't found any
> details on the compressor through a Google search.
>
> On another note, the compressor on my wife's 2002 Ford
> Explorer is reported as "weak" by a local automotive
> A/C shop. No leaks, and the pressures are good, but poor
> cooling, especially in traffic and stopped at signals.
> With the temperatures hear lately, it's quite uncomfortable.
>
> I can get a complete Sanden "OEM" style compressor with
> the associated parts for $315, but I sure don't know how
> I would do the job myself here in OKC. Local shop quotes
> about $950 for the job. I haven't gotten an estimate from
> our local Ford dealer yet.
>
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] AC Compressor leaking oil [message #92313 is a reply to message #92303] |
Sat, 17 July 2010 19:41 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""On another note, the compressor on my wife's 2002 Ford
Explorer is reported as "weak" by a local automotive
A/C shop. No leaks, and the pressures are good, but poor
cooling, especially in traffic and stopped at signals.
With the temperatures hear lately, it's quite uncomfortable.""
That sounds a little suspicious. If the pressures are good, I can't imagine what more the compressor should be doing.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] AC Compressor leaking oil [message #92318 is a reply to message #92313] |
Sat, 17 July 2010 21:17 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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sitting at a red light, your airflow is much lower across the condenser. My 2001 4L Explorer works just fine at red lights in the AZ heat. You may want to check your fan clutch or see if there is something blocking airflow such as a sheet of newspaper or something. Dirt? give her a good hose down through the radiator.
On another note, my explorer went through a summer a few years back where it just didn't seem right, but is fine now, at 105K on the odo.
Is hers a wagon? Mine is a sport trac pickup and also a different chassis...
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] AC Compressor leaking oil [message #92321 is a reply to message #92301] |
Sat, 17 July 2010 21:29 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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All right, all right!!!
Go to
http://www.sanden.com/support/servicemanual/english/compressor_nomenclatur.html
and it says approximate displacement in cubic centimeters
(divided by ten).
Gary Kosier
77EII & 77PB
Newark, Ohio
----- Original Message -----
From: "Ken Henderson" <hend4800@bellsouth.net>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, July 17, 2010 6:03 PM
Subject: Re: [GMCnet] AC Compressor leaking oil
> Mac,
>
> You're absolutely right, and I should have caught that. I
> suspect they drop
> the final zero so that it's really 150 cc rather than 15 cc,
> which would
> yield 9.15 ci, close 'nuff to 9 ci.
>
> Maybe.
>
> Ken H.
>
> On Sat, Jul 17, 2010 at 5:18 PM, D C *Mac* Macdonald
> <k2gkk@hotmail.com>wrote:
>
>>
>> That doesn't sound right.
>>
>> 1000 cc = approximately 61 cu. in.
>>
>> 15 cc would be only .915 cu. in.
>>
>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>> ~ Mac Macdonald ~
>> ~ Oklahoma City ~
>> ~~ "Money Pit" ~~
>> ~ '76 ex - P.B. ~
>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>>
>>
>>
>>
>> From: hend4800@bellsouth.net
>> Date: Sat, 17 Jul 2010 16:39:09 -0400
>> To: gmclist@temp.gmcnet.org
>> Subject: Re: [GMCnet] AC Compressor leaking oil
>>
>> In that thread, I posted a couple of messages. One of them
>> purported to
>> show a 15 ci Sanden. I've since been told that Sanden labels
>> the
>> compressors differently for R-12 and R-134a, AFA displacement:
>>
>> The SD508 and SD709 would have 5 pistons and 8 ci
>> displacement, or 7
>> pistons and 9 ci displacement, respectively, and would be
>> lubricated for
>> R12.
>>
>> An SD7H15, on the other hand, would be have 7 pistons, be
>> lubricated
>> for R134a ("h"), and have 15 cc (NOT ci) displacement.
>>
>> Sorry for the bad poop -- and I can't verify this other than
>> by reference
>> to
>> a trusted source.
>>
>> Ken H.
>>
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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| Re: [GMCnet] AC Compressor leaking oil [message #92325 is a reply to message #92321] |
Sat, 17 July 2010 21:44 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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That link gets hijacked somehow and takes me to a bunch of LinkSys pages.
~ ~ ~ ~ ~ ~ ~ ~ ~
~ Mac Macdonald ~
~ Oklahoma City ~
~~ "Money Pit" ~~
~ '76 ex - P.B. ~
~ ~ ~ ~ ~ ~ ~ ~ ~
----------------------------------------
> From: gkosier@roadrunner.com
> To: gmclist@temp.gmcnet.org
> Date: Sat, 17 Jul 2010 22:29:27 -0400
> Subject: Re: [GMCnet] AC Compressor leaking oil
>
> All right, all right!!!
> Go to
> http://www.sanden.com/support/servicemanual/english/compressor_nomenclatur.html
> and it says approximate displacement in cubic centimeters
> (divided by ten).
>
> Gary Kosier
> 77EII & 77PB
> Newark, Ohio
>
> ----- Original Message -----
> From: "Ken Henderson"
> To:
> Sent: Saturday, July 17, 2010 6:03 PM
> Subject: Re: [GMCnet] AC Compressor leaking oil
>
>
>> Mac,
>>
>> You're absolutely right, and I should have caught that. I
>> suspect they drop
>> the final zero so that it's really 150 cc rather than 15 cc,
>> which would
>> yield 9.15 ci, close 'nuff to 9 ci.
>>
>> Maybe.
>>
>> Ken H.
>>
>> On Sat, Jul 17, 2010 at 5:18 PM, D C *Mac* Macdonald
>> wrote:
>>
>>>
>>> That doesn't sound right.
>>>
>>> 1000 cc = approximately 61 cu. in.
>>>
>>> 15 cc would be only .915 cu. in.
>>>
>>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>>> ~ Mac Macdonald ~
>>> ~ Oklahoma City ~
>>> ~~ "Money Pit" ~~
>>> ~ '76 ex - P.B. ~
>>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>>>
>>>
>>>
>>>
>>> From: hend4800@bellsouth.net
>>> Date: Sat, 17 Jul 2010 16:39:09 -0400
>>> To: gmclist@temp.gmcnet.org
>>> Subject: Re: [GMCnet] AC Compressor leaking oil
>>>
>>> In that thread, I posted a couple of messages. One of them
>>> purported to
>>> show a 15 ci Sanden. I've since been told that Sanden labels
>>> the
>>> compressors differently for R-12 and R-134a, AFA displacement:
>>>
>>> The SD508 and SD709 would have 5 pistons and 8 ci
>>> displacement, or 7
>>> pistons and 9 ci displacement, respectively, and would be
>>> lubricated for
>>> R12.
>>>
>>> An SD7H15, on the other hand, would be have 7 pistons, be
>>> lubricated
>>> for R134a ("h"), and have 15 cc (NOT ci) displacement.
>>>
>>> Sorry for the bad poop -- and I can't verify this other than
>>> by reference
>>> to
>>> a trusted source.
>>>
>>> Ken H.
>>>
>>>
>> _______________________________________________
>> 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
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
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| Re: [GMCnet] AC Compressor leaking oil [message #92328 is a reply to message #92325] |
Sat, 17 July 2010 22:00 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
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Senior Member |
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Well, it was good in 2007 when I printed the Sanden manual.
Gary Kosier
----- Original Message -----
From: "D C *Mac* Macdonald" <k2gkk@hotmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, July 17, 2010 10:44 PM
Subject: Re: [GMCnet] AC Compressor leaking oil
>
> That link gets hijacked somehow and takes me to a bunch of
> LinkSys pages.
>
> ~ ~ ~ ~ ~ ~ ~ ~ ~
> ~ Mac Macdonald ~
> ~ Oklahoma City ~
> ~~ "Money Pit" ~~
> ~ '76 ex - P.B. ~
> ~ ~ ~ ~ ~ ~ ~ ~ ~
>
>
>
>
>
>
>
>
>
>
>
> ----------------------------------------
>> From: gkosier@roadrunner.com
>> To: gmclist@temp.gmcnet.org
>> Date: Sat, 17 Jul 2010 22:29:27 -0400
>> Subject: Re: [GMCnet] AC Compressor leaking oil
>>
>> All right, all right!!!
>> Go to
>> http://www.sanden.com/support/servicemanual/english/compressor_nomenclatur.html
>> and it says approximate displacement in cubic centimeters
>> (divided by ten).
>>
>> Gary Kosier
>> 77EII & 77PB
>> Newark, Ohio
>>
>> ----- Original Message -----
>> From: "Ken Henderson"
>> To:
>> Sent: Saturday, July 17, 2010 6:03 PM
>> Subject: Re: [GMCnet] AC Compressor leaking oil
>>
>>
>>> Mac,
>>>
>>> You're absolutely right, and I should have caught that. I
>>> suspect they drop
>>> the final zero so that it's really 150 cc rather than 15 cc,
>>> which would
>>> yield 9.15 ci, close 'nuff to 9 ci.
>>>
>>> Maybe.
>>>
>>> Ken H.
>>>
>>> On Sat, Jul 17, 2010 at 5:18 PM, D C *Mac* Macdonald
>>> wrote:
>>>
>>>>
>>>> That doesn't sound right.
>>>>
>>>> 1000 cc = approximately 61 cu. in.
>>>>
>>>> 15 cc would be only .915 cu. in.
>>>>
>>>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>>>> ~ Mac Macdonald ~
>>>> ~ Oklahoma City ~
>>>> ~~ "Money Pit" ~~
>>>> ~ '76 ex - P.B. ~
>>>> ~ ~ ~ ~ ~ ~ ~ ~ ~
>>>>
>>>>
>>>>
>>>>
>>>> From: hend4800@bellsouth.net
>>>> Date: Sat, 17 Jul 2010 16:39:09 -0400
>>>> To: gmclist@temp.gmcnet.org
>>>> Subject: Re: [GMCnet] AC Compressor leaking oil
>>>>
>>>> In that thread, I posted a couple of messages. One of them
>>>> purported to
>>>> show a 15 ci Sanden. I've since been told that Sanden labels
>>>> the
>>>> compressors differently for R-12 and R-134a, AFA
>>>> displacement:
>>>>
>>>> The SD508 and SD709 would have 5 pistons and 8 ci
>>>> displacement, or 7
>>>> pistons and 9 ci displacement, respectively, and would be
>>>> lubricated for
>>>> R12.
>>>>
>>>> An SD7H15, on the other hand, would be have 7 pistons, be
>>>> lubricated
>>>> for R134a ("h"), and have 15 cc (NOT ci) displacement.
>>>>
>>>> Sorry for the bad poop -- and I can't verify this other than
>>>> by reference
>>>> to
>>>> a trusted source.
>>>>
>>>> Ken H.
>>>>
>>>>
>>> _______________________________________________
>>> 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
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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| Re: [GMCnet] AC Compressor leaking oil [message #92333 is a reply to message #92329] |
Sat, 17 July 2010 22:20 |
Kosier
Messages: 834
Registered: February 2008
Karma: 1
|
Senior Member |
|
|
Mac,
Here's an update, in full glorious color.
www.sanden.com/images/SD_Service_Guide_Rev.2.pdf
It even has Henderson's 10rib pulley on the cover.
Gary Kosier
----- Original Message -----
From: "Ken Henderson" <hend4800@bellsouth.net>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, July 17, 2010 11:08 PM
Subject: Re: [GMCnet] AC Compressor leaking oil
> Mac,
>
> Try going to Sanden.com, then to Support, then the manual. The
> full link
> didn't work for me either.
>
> Ken H.
>
> On Sat, Jul 17, 2010 at 10:44 PM, D C *Mac* Macdonald
> <k2gkk@hotmail.com>wrote:
>
>>
>> That link gets hijacked somehow and takes me to a bunch of
>> LinkSys pages.
>>
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] AC Compressor leaking oil [message #92337 is a reply to message #92216] |
Sat, 17 July 2010 23:23 |
Richard Denney
Messages: 920
Registered: April 2010
Karma: 9
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Senior Member |
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On Fri, Jul 16, 2010 at 6:11 PM, Jon Payne <embrep@sbcglobal.net> wrote:
> This spring I did a complete rebuild on my dash air and just took our first
> long trip, some 1200 miles. Anyway after the trip I was checking under the
> hatch and noticed oil leaking from the front of the compressor.
>
> I seem to recall from previous posts that some oil leakage could be normal
> but I can't seem to find them.
>
> Should I be concerned about the leakage?
>
Leakage is always a problem, in theory.
My compressor had dripped enough oil so that it landed on the radiator hose,
ran down and dripped on the transmission cooling line, and then dripped on
the ground, making a large wet spot on a gravel driveway.
But it still had a charge--enough of a charge to keep the low pressure
switch happy.
I remembered when I first charged the system and I wasn't happy with the
memory of my technique, particularly with trying to view the gauge while
gunning the engine up to 1500 rpms. Too unstable to be sure of anything. So,
I did it right this time. I adjusted the idle to 1500 RPMs, and, making sure
my HC12a cans were upside down so that the system would draw in liquid, I
added another two cans. That brought the low side up to 22 psi at 1500 RPMs.
I believe I undercharged the system from the start, evidenced by occasional
evaporator core freezing on humid days.
That was before my trip up the mountain, and I've used the coach that time
and one other time since then. The AC is blowing cold and working fine, and
I've seen no more drips or puddles.
Maybe I put too much oil in it, and it just had to blow it past a seal.
Maybe I'm now out of oil and the compressor will burn up shortly. I dunno.
Rick "who'll replace the compressor if it blow, but not until then" Denney
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| Re: [GMCnet] AC Compressor leaking oil [message #92349 is a reply to message #92309] |
Sun, 18 July 2010 06:49 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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That's what I was going to say. I charged up my big Caprice wagon
with 2 cans of Duracool and it quit on the way to Tucson. I made the
mistake of running the blower on a mid setting and the whole mess iced
over. We near froze to death on the trip home. Reluctantly, I added
more Duracool to raise the output temp to 39 deg to prevent freezing
over. I was running 29 deg above 1,500 rpm, 30 - 32 at idle. Too
cold. That stuff is great.
On Sat, Jul 17, 2010 at 4:42 PM, Ken Henderson <hend4800@bellsouth.net> wrote:
> Mac,
>
> Why don't you try just replacing the R134a with Duracool/HC12a? At $20 or
> so, it's certainly worth a try. She may be pleasantly surprised at your
> ingenuity.
>
> Ken H.
>
>
> On Sat, Jul 17, 2010 at 6:18 PM, D C *Mac* Macdonald <k2gkk@hotmail.com>wrote:
>
>>
>> That is what I suspected, also, but I haven't found any
>> details on the compressor through a Google search.
>>
>> On another note, the compressor on my wife's 2002 Ford
>> Explorer is reported as "weak" by a local automotive
>> A/C shop. No leaks, and the pressures are good, but poor
>> cooling, especially in traffic and stopped at signals.
>> With the temperatures hear lately, it's quite uncomfortable.
>>
>> I can get a complete Sanden "OEM" style compressor with
>> the associated parts for $315, but I sure don't know how
>> I would do the job myself here in OKC. Local shop quotes
>> about $950 for the job. I haven't gotten an estimate from
>> our local Ford dealer yet.
>>
>>
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--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] AC Compressor leaking oil [message #92358 is a reply to message #92333] |
Sun, 18 July 2010 08:03 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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| Kosier wrote on Sat, 17 July 2010 22:20 |
Mac,
Here's an update, in full glorious color.
www.sanden.com/images/SD_Service_Guide_Rev.2.pdf
It even has Henderson's 10rib pulley on the cover.
Gary Kosier
----- Original Message -----
From: "Ken Henderson" <hend4800@bellsouth.net>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, July 17, 2010 11:08 PM
Subject: Re: [GMCnet] AC Compressor leaking oil
> Mac,
>
> Try going to Sanden.com, then to Support, then the manual. The
> full link
> didn't work for me either.
>
> Ken H.
>
> On Sat, Jul 17, 2010 at 10:44 PM, D C *Mac* Macdonald
> <k2gkk@hotmail.com>wrote:
>
>>
>> That link gets hijacked somehow and takes me to a bunch of
>> LinkSys pages.
>>
>>
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thanks, that has some good info.
Fred V
'77 Royale RB 455
P'cola, Fl
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