Topic Options
#2497061 - 05/17/18 12:37 AM New A/C System Charge Questions
340clone Offline
mopar

Registered: 11/28/04
Posts: 478
I have a '74 Charger with a 440 and factory air that I just finished putting back together. All of the A/C components are relatively new or have been replaced. Rebuilt RV2, new hoses, evap and condenser are fairly new. Compressor has no oil.

Here are my questions:

1.In a system like this, would I be better off converting to R134, or sticking with original setup? If I keep the R12 setup, I only have Freeze-12 available.

2.Would it be necessary to flush system in either case? There may be traces of Ester oil in system. Can Ester oil be used with either setup, and how much oil should be added to dry compressor before charge?

Thanks in advance!

Top
#2497313 - 05/17/18 05:14 PM Re: New A/C System Charge Questions [Re: 340clone]
John_Kunkel Offline
I Live Here

Registered: 01/20/03
Posts: 19902
Loc: Rio Linda, CA
1) Freeze-12 is mostly R-134A. R-12 is readily available but pricey, with all new components the wise thing to do is stick with R-12.

2) A new system will take 10-12 ounces of oil. If you're using mineral oil, a little residual ester will mix with it no problem.
_________________________
I'm supposed to respect my elders, but its getting harder and harder for me to find one now.

Top

Advertisement
Forum Stats
25,705 Registered Members
32 Forums
196,818 Topics
2,306,409 Posts

Most users ever online: 1,424 @ 06/20/18 07:18 PM
Moparts Newest Topics
Can you make a Dominator carb streetable?
by GY3
4 minutes 40 seconds ago
Sputter / backfire FiTech fuel injection
by BDW
16 minutes 3 seconds ago
Worst dragracer ever
by BloFish
18 minutes 44 seconds ago
First 68 Super Bee
by moparpollack
21 minutes 19 seconds ago