| AC high pressure hose replacement [message #333580] |
Sat, 16 June 2018 11:58  |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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So my mechanic had done some work on the top of the engine and did not latch the AC hose off of the alternator belt so it cut into the hose. Something I didn't realize till I tried the add Duracool to the system last season and the refrigerant spewed right back out. I pulled the hose and had it repaired and put it back on and zip tied it back off the belt. This all happened at the end of season so I never got the system up and running again. This summer would like to get it working again. What will I need done to it before I put Duracool in it?
Tom Geiger
76 Eleganza II
KCMO
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| Re: AC high pressure hose replacement [message #333583 is a reply to message #333580] |
Sat, 16 June 2018 12:17  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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To do it right. Replace or renew the receiver - dryer. (Renew by baking it, but a new one would be better) If the oil has been drained, put 4 ounces or so of mineral oil in the system. If you replaced the dryer, pour out what oil is in it and replace that much oil. If it had R134a in it, drain the oil and clean the system, then add mineral oil. Pressure the system with dry nitrogen to ~~250 psi and let it sit overnight and check that the system hasn't leaked overnight. Take your vacuum pump, release the nitrogen, and pull a hard vacuum on the system. Watch it for 20 - 30 minutes to ensure there are no leaks under vacuum. Put a couple of cans of DuraCool in, then look at the gauge and run some of the third can in. Most folks shoot for 20 PSI on the suction side at ~~ 1500 RPM. Option - put your temp probe in the air outlet and ease the third can in as long as the outlet temp falls. Keep it above 32 degrees. Once it falls off minimum temp, seal it up and run it.
--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: AC high pressure hose replacement [message #333584 is a reply to message #333580] |
Sat, 16 June 2018 12:22 |
tgeiger
Messages: 518
Registered: February 2006
Location: kansas city
Karma: -1
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Senior Member |
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Hey Matt, honestly I don't know how long the system was open. When I discovered the breach I pull the belt and rubber band some cellophane over the ports right away till I got the hose fixed and back on. But I don't know how long it was open befor that. Guess I'll get a dryer and vacuum it down to be sure.
Thanks Matt!
Tom
Tom Geiger
76 Eleganza II
KCMO
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| Re: [GMCnet] AC high pressure hose replacement [message #333587 is a reply to message #333584] |
Sat, 16 June 2018 12:54 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Senior Member |
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Matt, do we have anyone local that would take this on? I have a leak and
I'd like to convert.
On Sat, Jun 16, 2018, 1:23 PM tom geiger wrote:
> Hey Matt, honestly I don't know how long the system was open. When I
> discovered the breach I pull the belt and rubber band some cellophane over
> the
> ports right away till I got the hose fixed and back on. But I don't know
> how long it was open befor that. Guess I'll get a dryer and vacuum it down
> to
> be sure.
>
> Thanks Matt!
> Tom
>
> _______________________________________________
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> Unsubscribe or Change List Options:
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] AC high pressure hose replacement [message #333595 is a reply to message #333593] |
Sat, 16 June 2018 19:53 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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Senior Member |
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Mr Collie,
I should be the one offering to help you! In no way was I requesting you do
the work for me! =) I was curious if you knew of any shops locally... But I
also understand that no shop will install Duracool. Plan changed!
I was giving thought to the harbor freight coolant sniffer to find my leak
vs die. Would come in handy twice a decade, and I do live twice a decade
tools!
To answer your questions - nope, I'm not sure where the coolant leaked out
between the fall of 2017 and the spring of 2018, but it was empty when I
started her up last month. R134.
Ill find the leak first. Might have to stop by if you have a mega vacuum
pump and some duracool once it's fixed.
Are the dryers easially sourced?
On Sat, Jun 16, 2018, 8:42 PM Matt Colie wrote:
> Will Albers wrote on Sat, 16 June 2018 13:54
>> Matt, do we have anyone local that would take this on? I have a leak and
>> I'd like to convert.
>
> Will,
>
> Whatever, I am a week +/- from getting my coach done.
> After that....
> Do you know where the leak is??
> I may have a cheap way to find it.
> Do you want to put HC-12a (Duracool) in the system?
> Does it currently have R-134a access fittings?
>
> This can all be handled in my driveway, but you have to chase the parts -
> I don't have time.
> I do have some Duracool and R-134a (not as good, but legal) is cheap at
> Ollie's.
> I also have a big can of vacuum (joke - it is a science lab 0.1u pump -
> serious over kill for A/C).
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] AC high pressure hose replacement [message #333597 is a reply to message #333595] |
Sat, 16 June 2018 20:12 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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Will,
Napa has it.
https://www.napaonline.com/en/p/TEM208508
On Sat, Jun 16, 2018 at 6:53 PM, Will wrote:
> Mr Collie,
>
> I should be the one offering to help you! In no way was I requesting you do
> the work for me! =) I was curious if you knew of any shops locally... But I
> also understand that no shop will install Duracool. Plan changed!
>
> I was giving thought to the harbor freight coolant sniffer to find my leak
> vs die. Would come in handy twice a decade, and I do live twice a decade
> tools!
>
> To answer your questions - nope, I'm not sure where the coolant leaked out
> between the fall of 2017 and the spring of 2018, but it was empty when I
> started her up last month. R134.
>
> Ill find the leak first. Might have to stop by if you have a mega vacuum
> pump and some duracool once it's fixed.
>
> Are the dryers easially sourced?
>
> On Sat, Jun 16, 2018, 8:42 PM Matt Colie wrote:
>
>> Will Albers wrote on Sat, 16 June 2018 13:54
>>> Matt, do we have anyone local that would take this on? I have a leak
> and
>>> I'd like to convert.
>>
>> Will,
>>
>> Whatever, I am a week +/- from getting my coach done.
>> After that....
>> Do you know where the leak is??
>> I may have a cheap way to find it.
>> Do you want to put HC-12a (Duracool) in the system?
>> Does it currently have R-134a access fittings?
>>
>> This can all be handled in my driveway, but you have to chase the parts -
>> I don't have time.
>> I do have some Duracool and R-134a (not as good, but legal) is cheap at
>> Ollie's.
>> I also have a big can of vacuum (joke - it is a science lab 0.1u pump -
>> serious over kill for A/C).
>>
>> Matt
>> --
>> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
>> Electronically Controlled Quiet Engine Cooling Fan
>> OE Rear Drum Brakes with Applied Control Arms
>> SE Michigan - Twixt A2 and Detroit
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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