Topic: Air Conditioning Thoughts?
in Forum: C3 Cooling and Heating Systems
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Thanx for expanding on the thought, Terry! I have converted quite a few systems on my own vehicles, and they all seem to work just as well, except the 'Burban, and it has rear air. It will cool eventually, just doesn't seem to cool as quick as it did with the R12.
I have to repair the system in the '74, sooner or later, as the comp. took a dump last year...so I will be switching it to 134 then.
I have to repair the system in the '74, sooner or later, as the comp. took a dump last year...so I will be switching it to 134 then.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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Former Member
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Spotsylvania, VA - USA
Joined: 1/20/2007
Posts: 293
Vette(s): 1977 Silver Coupe
Now I have to add to this. I need to convert to 134a this year. I was in wallyworld yesterday and I seen a kit conversion that says that says that you don't need to crack the system to use this kit. Comments? Suggestions? Or, INSTRUCTIONS, simple instructions.
Thanks
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
[QUOTE=OlrustysGhost] Now I have to add to this. I need to convert to 134a this year. I was in wallyworld yesterday and I seen a kit conversion that says that says that you don't need to crack the system to use this kit. Comments? Suggestions? Or, INSTRUCTIONS, simple instructions.
RUN, FOREST.....RUUUUNNN!!!!!!!!
Don't fall for that one!
Thanks
[/QUOTE]
RUN, FOREST.....RUUUUNNN!!!!!!!!
Don't fall for that one!
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
10-4 Joel. Yes you can buy so called conversion kits at Walmart etc. What it consists of is a can of R134 with sealer in it, and about 2 oz. of oil and an injector. First of all stay away from anything with sealer in it. I am getting cars in my shop that have been destroyed by sealer. Have it done by a shop that knows what their doing. As I stated above its a process to do it right. If your driving a beater its one thing, but if your talking about a Shark, don't do it. You know the saying, "if it sounds to good to be true,it is".
I've about given up on mine. I have no leaks that we can find, the pressure stays consistant, we can hear the fans in high mode with engine off, but when I go down the road the air coming out of the vents is a joke and the air is warm.
All switches and relays have been replaced a couple of times. I'm considering a complete Vintage Air System but it won't be this year. I don't have tell you how hot this BB with headers gets 
Former Member
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Spotsylvania, VA - USA
Joined: 1/20/2007
Posts: 293
Vette(s): 1977 Silver Coupe
Ok , no wallyworld.
Former Member
Send PM
Spotsylvania, VA - USA
Joined: 1/20/2007
Posts: 293
Vette(s): 1977 Silver Coupe
I like doing things myself, can someone tell me the right way? I'm a pretty good wrench and can follow instructions
[QUOTE=OlrustysGhost]I like doing things myself, can someone tell me the right way? I'm a pretty good wrench and can follow instructions[/QUOTE]
http://www.iceac.com/Book/basic_retrofit.pdf Here's a pretty good procedure guide. It may help you do it yourself
, or help you realize why you may need a pro with the right equipment.
The main thing is make sure your leaks are fixed before charging it. Terry
, or help you realize why you may need a pro with the right equipment. The main thing is make sure your leaks are fixed before charging it. Terry
[QUOTE=warbird]I've about given up on mine. I have no leaks that we can find, the pressure stays consistant, we can hear the fans in high mode with engine off, but when I go down the road the air coming out of the vents is a joke and the air is warm.
All switches and relays have been replaced a couple of times. I'm considering a complete Vintage Air System but it won't be this year. I don't have tell you how hot this BB with headers gets
[/QUOTE]
Are your suction hoses getting cold? If so you may need to replace heater control valve or replace with a manual. Terry Warbird,
Terry is correct, If the compressor is turning, with the ac cluth locked, and the hoses are cold then you either have a problem with the duct system or the heate rvalve is partially open, A cheap, non-complex fix is to install shutoff valve on BOTH heater hoses. This eliminates mixing cold air with hot air. NAPA has the shutoff valves.
Scott
Terry is correct, If the compressor is turning, with the ac cluth locked, and the hoses are cold then you either have a problem with the duct system or the heate rvalve is partially open, A cheap, non-complex fix is to install shutoff valve on BOTH heater hoses. This eliminates mixing cold air with hot air. NAPA has the shutoff valves.
Scott
in Forum: C3 Cooling and Heating Systems
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