Engine Size: 2.4L
Refrigerant Type: R12
Country of Origin: United States
I am admittedly ignorant of many things A/C, that said, I want to change to 134a in this vehicle. I have a fresh rebuilt compressor (rebuilt by Denso) Denso P1013C that has not been installed yet, I have ordered a new evaporator core and also have a new (stock ) Denso TXV valve, does this need to be different ?. I am still looking for a parallel flow condensor that will work. The compressor says it has Denso oil 6 in it. i have seen in my recent searches for info that i need to change the service valves too. Do I have to get a different dryer than the stock one?
any help will be greatly appreciated, this car is getting a fresh rebuild on the motor and transmission, would be great if I can modernize the A/C system too, besides I am in Kalifornia and R12 is insanely expensive now.
Edited: Fri June 17, 2011 at 10:35 PM by Arcseeker
Everything is insanely expensive now like having to replace a fuel pump for 450 bucks when you could buy a complete rebuilding kit for a buck and do the job in five minutes instead of a day.
If not too badly mistaken, Tim will correct me, your system only holds around 24 ounces of R-12, with R-134a conversions that I have never tried, problems are encountered with attempting to obtaining a clear sight glass at 2,000 rpm, doors, open, AC on, blower at max on a 80*F + day. Also have to find an R-134a calibrated TXV besides that parallel flow.
Call me lazy, but a lot depends on the condition of your system, just stuck with R-12
We retrofitted a friends 86, 4runner to R134a. This truck had the larger condensor in it already. It's got a 2nd smaller condensor mounted in front of the larger one. Flushed the system with AC solvent, New dryer, Ester oil ( I forgot how much but I'd guess 6 or so oz)and 1.40lbs of R134a.
He says it works great! He drives across the desert on I-40 from SoCal to Arizona every month and he says that he has to turn it down going across the desert as it gets too cold.
Never thought about adding a second condenser, sounds like a good idea, have to give that some thought for my 88 Supra Turbo if converting.
It already has an intercooler, AT and engine oil cooler, and two auxilary electric booster fans in front of the condenser, but they say, there is always room for one more.
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