air con disassembly question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CG · 07-23-2005, 01:40 PM

im going to be taking a complete heat/air con system out of one truck and moving it all to another. is there anything i need to know about taking off the compressor or that can thing (evaporator?). ive read something about high pressure side etc etc. i dont care to have this take off the top of my head...thanks

Blue85 · 07-23-2005, 01:51 PM

make sure you get the system evacuated before removing the hoses.

CG · 07-23-2005, 10:17 PM

so is this something i can do myself?

Blue85 · 07-24-2005, 11:19 AM

you have to take it in to a shop or a/c place unless you want to buy the equipment

chickenwing · 07-25-2005, 08:43 AM

Yes you can do this yourself but it is illegal. The refrigerant is supposed to be recovered and not vented to atmoshpere.

mrein3 · 07-25-2005, 01:05 PM

"Back in the day" when you needed to repair something on a partially charged AC system a tech would simply crack open one of the fittings and vent the R12 into the atmosphere. You want the coolant to slowly hiss out so all the oil doesn't blow out.

As "chickenwing" pointed out this is now illegal.

If I had a nickle for every pound of R12 I vented before the law changed I wouldn't have to work any more.

So how does R12 create a hole in the ozone layer when it is heaver than air? Was that out loud?

86k10 · 07-25-2005, 01:18 PM

[QUOTE=mrein3]

As "chickenwing" pointed out this is now illegal.

Yeh but sometimes being bad feels pretty good. If you ask me why worry about it, big brother hasn't taken over yet, or has he. Just crack a line so it bleeds slow and not lose to much oil.

matthufham · 07-25-2005, 01:43 PM

i vented mine in the driveway, some mexicans sure were lookin at me but you have to watch out because it can freeze anything it comes to contact with. mine was brown, so it probably wasn't any good anyways.

07-23-2005, 01:40 PM	#1
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 19,992	air con disassembly question im going to be taking a complete heat/air con system out of one truck and moving it all to another. is there anything i need to know about taking off the compressor or that can thing (evaporator?). ive read something about high pressure side etc etc. i dont care to have this take off the top of my head...thanks

07-23-2005, 01:51 PM	#2
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	make sure you get the system evacuated before removing the hoses. __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

07-24-2005, 11:19 AM	#4
Blue85 Oilfield Trash Join Date: Sep 2003 Location: Raymore, Sk, Canada, Earth Posts: 3,171	you have to take it in to a shop or a/c place unless you want to buy the equipment __________________ 14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr.

07-25-2005, 08:43 AM	#5
chickenwing Lovin' Life in Miss.! Join Date: Mar 2004 Location: Puckett, Mississippi Posts: 1,937	Yes you can do this yourself but it is illegal. The refrigerant is supposed to be recovered and not vented to atmoshpere. __________________ The truck... you hear that? No really, you did hear that?!!!

07-25-2005, 01:05 PM	#6
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,253	"Back in the day" when you needed to repair something on a partially charged AC system a tech would simply crack open one of the fittings and vent the R12 into the atmosphere. You want the coolant to slowly hiss out so all the oil doesn't blow out. As "chickenwing" pointed out this is now illegal. If I had a nickle for every pound of R12 I vented before the law changed I wouldn't have to work any more. So how does R12 create a hole in the ozone layer when it is heaver than air? Was that out loud? __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

07-23-2005, 10:17 PM	#3
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 19,992	so is this something i can do myself?

07-25-2005, 01:18 PM	#7
86k10 Registered User Join Date: Feb 2003 Location: Bertrand, Nebraska Posts: 355	[QUOTE=mrein3] As "chickenwing" pointed out this is now illegal. Yeh but sometimes being bad feels pretty good. If you ask me why worry about it, big brother hasn't taken over yet, or has he. Just crack a line so it bleeds slow and not lose to much oil. __________________ 98 Neon 97 Grand Prix GT 02 Grand Prix 40th Anniv. 86 GMC 5.0 77 Olds 98 6.6 REAL AMERICANS, DRIVE AMERICAN

07-25-2005, 01:43 PM	#8
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	i vented mine in the driveway, some mexicans sure were lookin at me but you have to watch out because it can freeze anything it comes to contact with. mine was brown, so it probably wasn't any good anyways.



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