Solving engine swap A/C problems
Soooooo, along with swapping out my /6 motor for a 318 magnum motor in my 74 Duster, I also decided to up grade my A/C system to a new Sanden compressor and R134A. The factory style big "V" compressor used a temp/pressure controlled expansion valve on the low side which used a - 12 line and hose. The system actually worked quite well, but the new Sanden compressor uses a -10 line on the low side. So I found a company in Phoenix, Az ( AAPAC ) that sells all kinds of automotive A/C parts as well as making up lines for special needs such as mine. Brought my stuff in and told them what I wanted to do. On the low side, they used part of my existing -12 tubing that contained the expansion valve and firewall ( evaporator ) fittings and welded a -10 hose fitting to attach to my -10 compressor fitting. Ran a -10 hose to a 135* 0-ring fitting ( with port ) and to my Sanden compressor. On the high side, I wanted to use the same -8 tubing that ran through my core support to the condenser. Again, they welded a -8 hose fitting ( with port) to the end of the -8 tubing. I hosed it to my compressor with another 135* -8 0-ring fitting. DONE! Clean set up. No leaks. cold air. And my new system only draws 3 HP verses 12 with the old clunker system.
Soooooo, along with swapping out my /6 motor for a 318 magnum motor in my 74 Duster, I also decided to up grade my A/C system to a new Sanden compressor and R134A. The factory style big "V" compressor used a temp/pressure controlled expansion valve on the low side which used a - 12 line and hose. The system actually worked quite well, but the new Sanden compressor uses a -10 line on the low side. So I found a company in Phoenix, Az ( AAPAC ) that sells all kinds of automotive A/C parts as well as making up lines for special needs such as mine. Brought my stuff in and told them what I wanted to do. On the low side, they used part of my existing -12 tubing that contained the expansion valve and firewall ( evaporator ) fittings and welded a -10 hose fitting to attach to my -10 compressor fitting. Ran a -10 hose to a 135* 0-ring fitting ( with port ) and to my Sanden compressor. On the high side, I wanted to use the same -8 tubing that ran through my core support to the condenser. Again, they welded a -8 hose fitting ( with port) to the end of the -8 tubing. I hosed it to my compressor with another 135* -8 0-ring fitting. DONE! Clean set up. No leaks. cold air. And my new system only draws 3 HP verses 12 with the old clunker system.
