Factory Air

Elvis · 07-17-2006, 07:11 PM

I have a '67 with factory air and have just changed everything - dryer, compressor, expansion valve, etc - out to switch to 134. I bought the compressor (the big cast iron one) from Auto Zone and they assured me that it is compatible with 134. Well, it cools OK but the compressor makes a lot of noise which it did not do when I was using R12 - I have tried two compressors, same noise. Any ideas? I can't exist in this Texas heat without air but I could do without the noise. Thanks, E.

Gearhead999 · 07-17-2006, 08:53 PM

You added oil to the compressor, right??

You added the correct oil??

The 134 pushes the high side pressure way up, past the R12 numbers. Very hard on the system.

Lastly, you know that you should only recharge w/134 about 85% of R12.

mustangman65_79 · 07-26-2006, 02:19 AM

yea, did u add oil?

07-17-2006, 07:11 PM	#1
Elvis Registered Member Join Date: Jun 2000 Location: Sherman, Texas Posts: 188	Factory Air I have a '67 with factory air and have just changed everything - dryer, compressor, expansion valve, etc - out to switch to 134. I bought the compressor (the big cast iron one) from Auto Zone and they assured me that it is compatible with 134. Well, it cools OK but the compressor makes a lot of noise which it did not do when I was using R12 - I have tried two compressors, same noise. Any ideas? I can't exist in this Texas heat without air but I could do without the noise. Thanks, E.

07-17-2006, 08:53 PM	#2
Gearhead999 Registered Member Join Date: Sep 1998 Location: Oviedo, FL Posts: 992	Re: Factory Air You added oil to the compressor, right?? You added the correct oil?? The 134 pushes the high side pressure way up, past the R12 numbers. Very hard on the system. Lastly, you know that you should only recharge w/134 about 85% of R12. __________________ "Support our Troops" Dave 1968 Cougar 2004 Thunderbird 2007 F150 Harley-Davidson, SuperCrew 1986 LTD 1997 Ranger 1992 Honda Civic

07-26-2006, 02:19 AM	#3
mustangman65_79 My poor 79 RIP Join Date: Oct 2001 Location: Suisun City, Posts: 2,320	Re: Factory Air yea, did u add oil? __________________ '84 mustang GT turbo '85 LTD '89 Camaro Irocz z28 '94 Lightning '96 Trans am

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