Air Conditioning Question...
Thread Starter
Racer
Joined: Apr 2006
Posts: 262
Likes: 3
From: Philly Suburbs (Pa.)
Air Conditioning Question...
Am replacing the main air compressor hose on my '72 and would like to know which (picture please) valve to use to refill with R134A....
The can says large diameter hose but the former owner has a blue cap on the smaller hose! ?????? Any help would be appreciated!
The can says large diameter hose but the former owner has a blue cap on the smaller hose! ?????? Any help would be appreciated!
Burning Brakes
Joined: Oct 2004
Posts: 904
Likes: 0
From: Murphy NC
The large diameter hose is the low side the the small is the high side. This is always the case and disregard the cap color. It means nothing. You will have to have adapter fittings to add 134a. Hopefully you replaced the drier as well and added the proper about of pag oil. Make sure you pull a nice long vacuum to check for leaks and to get all the moisture out.
Instructor
Joined: Oct 2004
Posts: 124
Likes: 0
From: Madison WI
If it isn't too late, I would discourage you from converting to 134 refridgerant. I previously looked into doing this and was told by a few Corvette specialist shops that these conversions do not work very well and even when they do the a/c won't be very cold. I had them repair and refill my a/c with R12, which works so well it can freeze me out of the '79.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
Team Owner
Joined: Oct 2004
Posts: 23,831
Likes: 10
From: Springfield MO
St. Jude Donor '07
If it isn't too late, I would discourage you from converting to 134 refridgerant. I previously looked into doing this and was told by a few Corvette specialist shops that these conversions do not work very well and even when they do the a/c won't be very cold. I had them repair and refill my a/c with R12, which works so well it can freeze me out of the '79.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
Those "Corvette specialist shops" obviously either didn't have a clue how to properly set up a 134a system or just wanted to gouge you for the R12.
Thread Starter
Racer
Joined: Apr 2006
Posts: 262
Likes: 3
From: Philly Suburbs (Pa.)
If it isn't too late, I would discourage you from converting to 134 refridgerant. I previously looked into doing this and was told by a few Corvette specialist shops that these conversions do not work very well and even when they do the a/c won't be very cold. I had them repair and refill my a/c with R12, which works so well it can freeze me out of the '79.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
Also, the last I heard it has been recently discovered that 134 is worse for the environment than r12 is.
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Thread Starter
Racer
Joined: Apr 2006
Posts: 262
Likes: 3
From: Philly Suburbs (Pa.)
Pro
Joined: Sep 2002
Posts: 624
Likes: 1
From: Melbourne, Fla. 6 months- New Middletown, Ohio 6 months
hosspowerinc is not trying to be a smart$*#. There is a lot more to charging the system then just pouring freon into it. Do you have a vacuum pump? Do you know how much freon to put into the system and how to bypass the low pressure switch in order to get the compressor to kick in if necessary? Do you have a set of guages so that you can see what the high side reading is? Do you know what the high and low side readings should be?