Help Me Fix my AC

[84blkstang]

I have made a few threads before about fixing my AC system. The old system that was on the car had a line that was cut into, it was the one going from the firewall to the condensor. the two other AC lines (compressor) were fine. I robbed all the lines condensor, evaportor and everything else off a 88 GT, even the heater core box. Tomorrow i want to install everything, is there anythign i need to replace besides the O-rings? The i will take the car to a shop and have it vaccumed out then i will buy the R134 and put it in myself since it is pretty simple. Now to the oil where do it get it? Can I get the right stuff at o rileys or walmart or somthing., I need some guidance here since i have never done this before. I want to do this once and do it right, Thanks

 

[PuterAmI]

I need some guidance here since i have never done this before. I want to do this once and do it right, Thanks

http://www.veryuseful.com/mustang/tech/general/R12-to-R134A-Conversion.html

 

[84blkstang]

Does the rest of my plan of attack sound ok?

 

[PuterAmI]

Have the shop vacuum and charge. It will cost a little more, put they will be charging into a vacuum as well as using pressures and vent temps to adjust the amount of refrigerant.

 

[84blkstang]

ok i called a few shops and on average they want 40 per lb of freon to vaccume and charge does this sound right?

 

[BlownFiveLiter]

$40/lb is assuming that they'll be putting R12 back into the system, since that's what your car was originally equipped with. If you're doing a complete swap, and 134a conversion, the price should go down drastically from there. It should only take a couple cans of 134a + 8oz of PAG oil to charge the system, if it's the same as on my 95. A/C is nice to have, I wouldn't ever remove it from my car, so it kinda sucks that the previous owner did to yours

 

[Traitor5150]

I know at the shop I work at i think we get $16 a pound for freon

 

[84blkstang]

so is 40 too high?

 

[sgarlic]

It's 25 per lb for r134a here in Tucson.. but everybody needs a/c work here.

 

[PuterAmI]

ok i called a few shops and on average they want 40 per lb of freon to vaccume and charge does this sound right?

Nope.
Explain that you are converted to R134A and ask again.