Well, I just converted my AC system to the Freeze 12 product. It was super easy and it works really well.
A little background here. I had my engine rebuilt about two years ago before which the AC was working. The shop that installed the engine never recharged the AC system(I assume that one of the lines had to be cracked open to take the engine out). Anyway after fixing most of the major stuff I had nothing else to work on so I did the ac this weekend.
Here is the breakdown:
Parts
$17.00 - new high and low side fittings and 2oz. ester oil
$13.00 - 2 12oz cans of freeze 12
Tools:
135.00 - 1.5cfm vacuum pump
110.00 - manifold gauge set
9.50 - can tapper device
All I did was connect the new fittings to the high and low side of the compressor and connect the manifold gauge accordingly. Hook up the vacuum pump to the manifold gauge and suck the AC system down to a vacuum for 20 minutes at negative 29psi. Next I closed off the vacuum line and made sure that the system could hold the vacuum for 5 minutes which it did. Then you disconnect the vacuum line and hook up the can tapper line and add the freez 12 oil and the refrigerant. Easy squeazy stuff.
I was originally going to do an r134 conversion but you have to get all of the old oil out of the system which requires a lot of work. The freeze 12 is compatible with the old r12 oil so it isn't necessary to flush the oil. The only thing which I should have done but didn't was switch out the receiver drier $40 from toyota.
I hope this helps some of you out there. I figured I would rather buy the tools and do it myself considering a shop would probably charge me the same to do it. By the way r12 is $61 a can (two cans needed)
Dave
A little background here. I had my engine rebuilt about two years ago before which the AC was working. The shop that installed the engine never recharged the AC system(I assume that one of the lines had to be cracked open to take the engine out). Anyway after fixing most of the major stuff I had nothing else to work on so I did the ac this weekend.
Here is the breakdown:
Parts
$17.00 - new high and low side fittings and 2oz. ester oil
$13.00 - 2 12oz cans of freeze 12
Tools:
135.00 - 1.5cfm vacuum pump
110.00 - manifold gauge set
9.50 - can tapper device
All I did was connect the new fittings to the high and low side of the compressor and connect the manifold gauge accordingly. Hook up the vacuum pump to the manifold gauge and suck the AC system down to a vacuum for 20 minutes at negative 29psi. Next I closed off the vacuum line and made sure that the system could hold the vacuum for 5 minutes which it did. Then you disconnect the vacuum line and hook up the can tapper line and add the freez 12 oil and the refrigerant. Easy squeazy stuff.
I was originally going to do an r134 conversion but you have to get all of the old oil out of the system which requires a lot of work. The freeze 12 is compatible with the old r12 oil so it isn't necessary to flush the oil. The only thing which I should have done but didn't was switch out the receiver drier $40 from toyota.
I hope this helps some of you out there. I figured I would rather buy the tools and do it myself considering a shop would probably charge me the same to do it. By the way r12 is $61 a can (two cans needed)
Dave
