I need A.C. Advice - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TNTsigns · 02-25-2012, 10:34 PM

I have a 70 that has all the A.C. components in the cab and firewall. I am missing everything in the engine compartment. I would like to get the A.C. put back together and working. Is there a place out there I can buy all those components together. I am not real savvy on A.C. Systems. I've charged a few and fixed a few leaks. Any suggestions?

**allchevy58** · 02-26-2012, 01:40 AM

Old Air Products should have everything you need other than the brackets.

TNTsigns · 02-26-2012, 01:54 AM

Have you had personal experience with their products? With what little I read on this forum, guys are not to happy with them.

mrein3 · 02-26-2012, 01:32 PM

Since you are starting with a truck that already has AC, I would stick with stock components.

I converted a non-AC truck to a stock style AC truck and would do it again for what these aftermarket companies are asking for their stuff. Plus, what are you going to do when the aftermarket company goes under or switches to a different line and doesn't offer your parts any more?

I took a stock system, adjusted the stock POA to work with R134a, then charged the system with R134a. The reason I converted from R12 is that the cost of the R134a was way cheaper and I can still legally buy R134a. And you can still get it anywhere like Wal*Mart or your local auto parts supply house.

For the underhood stuff I collected parts over a couple of years so I don't know if somebody offers a "kit" with all the components you need.

TNTsigns · 02-26-2012, 06:21 PM

Thanks for the info. I may have to do that as well. One question what is the POA? I know it may be a stupid question?

I was a member of this Forum for several years. Just can't ever remember my user name and pass word.

I know there has got to be allot of people out there with the similar issue.
I have had about 4 of the trucks with air cabs and nothing in the engine compartment.

Eddie H. · 02-26-2012, 07:30 PM

What components are you missing?
Is the evaporater case that bolts to the firewall under the hood still there?
If so, you would still need the condenser, dryer, POA valve, hard lines, hoses, compressor, and mounting brackets. If you will PM me with the specific parts you need, I may be able to help you find them.

**allchevy58** · 02-26-2012, 10:42 PM

Quote:

Originally Posted by TNTsigns

Have you had personal experience with their products? With what little I read on this forum, guys are not to happy with them.

I bought all new hoses and heater control valve from the Truck Shop because they appeared to be like the originals. Everything came from Old Air Products and fit perfect. I could have had hoses made up in town cheaper but they wouldn't fit in a couple of brackets after they cut the old hoses off and install new hoses. You can buy direct through Old Air Product and save a couple of dollars. I also converted to R134, alot cheaper.

Asahi123 · 02-26-2012, 10:54 PM

Throw the old a/c as far as possible. Go with Vintage air newest system I have it in my 71. It so much better than the factory one.
Posted via Mobile Device

TNTsigns · 02-26-2012, 11:33 PM

What kind of cost did you have in it? Can a guy use his original vents and switch assembly
?
I like the original look.

BigCountryx · 02-26-2012, 11:48 PM

PM cparman about Classic Auto Air
Posted via Mobile Device

**70cst** · 02-27-2012, 12:30 AM

If not having a stock AC is important...then aftermarket might be the way to go.

mrein3 · 02-27-2012, 09:09 AM

Quote:

Originally Posted by TNTsigns

Thanks for the info. I may have to do that as well. One question what is the POA? I know it may be a stupid question?

I was a member of this Forum for several years. Just can't ever remember my user name and pass word.

I know there has got to be allot of people out there with the similar issue.
I have had about 4 of the trucks with air cabs and nothing in the engine compartment.

POA - Open your hood and put your nose next to the passenger side hood hinge. Look straight ahead. The POA is the bulbous looking deal that comes off the hard line coming out of the outside heater box. You need to adjust this to work with R134a if that is what you want to use for a coolant chemical.

I did a pretty detailed post about the procedure a while back. There is a link to an AC forum that tells you how to adjust the POA. Unfortuantely the picture with the instructions disappeared recently. The process is still there.

Read this:
http://67-72chevytrucks.com/vboard/s...d.php?t=478564
before you spend thousands with an aftermarket setup.

TNTsigns · 02-29-2012, 11:43 PM

That was a very helpful post. I am going to start gathering the rest of the parts and be back for more advice. Thanks

02-25-2012, 10:34 PM	#1
TNTsigns Registered User Join Date: Feb 2012 Location: Ontario, Oregon Posts: 17	I need A.C. Advice I have a 70 that has all the A.C. components in the cab and firewall. I am missing everything in the engine compartment. I would like to get the A.C. put back together and working. Is there a place out there I can buy all those components together. I am not real savvy on A.C. Systems. I've charged a few and fixed a few leaks. Any suggestions?

02-26-2012, 01:40 AM	#2
allchevy58 Senior Member Join Date: Aug 2011 Location: Reno, Nv. Posts: 1,440	Re: I need A.C. Advice Old Air Products should have everything you need other than the brackets. __________________ 1927 Willy's Knight 24,000 original miles, 1958 Impala 283/Powerglide, 1971 Monte Carlo 350/350, 1972 GMC K2500 350/350, 1976 Chev. K10 350/350, 2006 GMC Sierra 2500HD LBZ Duramax/Allison, 2006 Chev. Silverado K3500 LBZ Duramax/Allison

02-26-2012, 01:54 AM	#3
TNTsigns Registered User Join Date: Feb 2012 Location: Ontario, Oregon Posts: 17	Re: I need A.C. Advice Have you had personal experience with their products? With what little I read on this forum, guys are not to happy with them.

02-26-2012, 01:32 PM	#4
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Re: I need A.C. Advice Since you are starting with a truck that already has AC, I would stick with stock components. I converted a non-AC truck to a stock style AC truck and would do it again for what these aftermarket companies are asking for their stuff. Plus, what are you going to do when the aftermarket company goes under or switches to a different line and doesn't offer your parts any more? I took a stock system, adjusted the stock POA to work with R134a, then charged the system with R134a. The reason I converted from R12 is that the cost of the R134a was way cheaper and I can still legally buy R134a. And you can still get it anywhere like Wal*Mart or your local auto parts supply house. For the underhood stuff I collected parts over a couple of years so I don't know if somebody offers a "kit" with all the components you need. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

02-26-2012, 06:21 PM	#5
TNTsigns Registered User Join Date: Feb 2012 Location: Ontario, Oregon Posts: 17	Re: I need A.C. Advice Thanks for the info. I may have to do that as well. One question what is the POA? I know it may be a stupid question? I was a member of this Forum for several years. Just can't ever remember my user name and pass word. I know there has got to be allot of people out there with the similar issue. I have had about 4 of the trucks with air cabs and nothing in the engine compartment.

02-26-2012, 07:30 PM	#6
Eddie H. Registered User Join Date: Mar 2001 Location: Paradise TX USA Posts: 1,200	Re: I need A.C. Advice What components are you missing? Is the evaporater case that bolts to the firewall under the hood still there? If so, you would still need the condenser, dryer, POA valve, hard lines, hoses, compressor, and mounting brackets. If you will PM me with the specific parts you need, I may be able to help you find them. __________________ "Negative people always seem to have a problem for every solution"

02-26-2012, 10:54 PM	#8
Asahi123 Registered User Join Date: Jul 2011 Location: Texas Posts: 42	Re: I need A.C. Advice Throw the old a/c as far as possible. Go with Vintage air newest system I have it in my 71. It so much better than the factory one. Posted via Mobile Device

02-26-2012, 11:33 PM	#9
TNTsigns Registered User Join Date: Feb 2012 Location: Ontario, Oregon Posts: 17	Re: I need A.C. Advice What kind of cost did you have in it? Can a guy use his original vents and switch assembly ? I like the original look.

02-26-2012, 11:48 PM	#10
BigCountryx Registered User Join Date: May 2009 Location: Gonzales, LA Posts: 779	Re: I need A.C. Advice PM cparman about Classic Auto Air Posted via Mobile Device __________________ 1972 Pale Yella 2WD Blazer ..... 350HO/700R4.... '68 Clipped 1970 Original Paint SWB Farm Truck ..... 5.3/4L80.... 2x HRPT Participant

02-27-2012, 12:30 AM	#11
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,373	Re: I need A.C. Advice If not having a stock AC is important...then aftermarket might be the way to go. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

02-29-2012, 11:43 PM	#13
TNTsigns Registered User Join Date: Feb 2012 Location: Ontario, Oregon Posts: 17	Re: I need A.C. Advice That was a very helpful post. I am going to start gathering the rest of the parts and be back for more advice. Thanks

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