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A/C?

Vman911

Well-known member
Joined
Sep 18, 2005
Messages
358
Location
Douglas county, Ga
for those of you who have switched to R134 did you change your expansion valve to a stock one (r12) or did you find a r134 valve that fits? if it got change where did you find it at. did dash have to come out to do it? thanks Vinman
 

DR1665

Well-known member
Joined
Oct 19, 2005
Messages
4,640
Location
Phoenix, AZ
I converted to R134 when i re-installed the Ac in 464/1000. I sprayed out all the lines with brake cleaner, replaced all the o-rings, coated the o-rings in mineral oil before assembly, and re-used everything else, including the dryer. The only differences between my system now and when it left the factory are:

a. R134 and fitting adapters on that one hardline
b. R134 in the system
c. I *might* be running a 2G DSM compressor. (Not sure.)

464/1000 pumps out 45*F air when it's 118*F outside here in Phoenix. #lifesaver
 

bmxkid415

Well-known member
Joined
Jan 27, 2008
Messages
204
Location
Bradenton FL
I yanked out the AC years ago then Tim Reed sent me his system. Only thing I did was vac down the system (since it was open for some time) for about 45 mins. Switched to the R134A fittings. Mine blows ut @ 48 degrees in 110 degree shop.
 

alansupra94

Well-known member
Joined
Mar 3, 2010
Messages
1,909
Location
Wayne,NJ
Where do you get these "o-rings" from as I will be re-installing my A/C system soon enough.
 

jepherz

Staff member
Joined
Aug 8, 2004
Messages
7,877
Location
KC, Missouri
Quoting alansupra94:
Where do you get these "o-rings" from as I will be re-installing my A/C system soon enough.



You can buy an O-ring kit for our cars from rock auto.

A question for the OP, are you sure the expansion valve is actually different? I've been wanting to order up the parts to do this and wasn't sure if the valve was necessary or not.
 
Last edited:

iceman69510

Turn Right Racing
Staff member
Joined
Mar 5, 2001
Messages
10,918
Location
Michigan
I'll be putting R12 back in mine by end of this week I hope. I found a coworker sitting on a 30 lb bottle and an A/C service machine. /ubbthreads/images/graemlins/devil.gif
 

Terry Posten

Well-known member
Joined
Dec 16, 2003
Messages
9,009
Location
Davenport, Iowa USA
Wow, that must be one cold enama.
 

rgeier11

Well-known member
Joined
Sep 26, 2004
Messages
726
Location
Chicago Suburbs, IL
We have like 4 30lb bottles at the high school I teach at. We also have about 50 of the old school cans. The old auto teacher stocked up on R12 when Venture had a sale back in the day, 2 cans for $1!!!!
 
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