R-134 conversion
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R-134 conversion
My '91 F-150 4.9 5-spd. is going to get the R-134 conversion in the next couple of months, and I have a few questions. What is the correct orifice that I need buy? Ford Part No.? Other? The complete system leaked down around a year ago after a quickie, out-of-town rebuilt compressor was installed. Should I just go ahead and replace the pump before charging the system? I was planning on replacing the accumulator anyway, along with all O-rings, and doing a complete system disassembly and clean out.
Guest
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R-134 conversion
Don't know how hot it gets where you live, but if you want, or have to have, really cold air don't do the conversion. R134 just doesn't have the same cooling juice as freon in stop and go traffic. It cools fine out on the road, as long as you are pulling air over the condenser coils. I had my 90 F150 300 I6 changed over this summer. They changed the orifices on the inlet and outlet lines to larger ones, replaced all o-rings and accumulator, flushed and cleaned the system, charged it with lube and then put in the r134. My cost was about $160. A good deal and more eco-friendly, but definitely not as cool. I'd reconsider unless you just want to swap to R134 or unless the cost of fixing your present system is too high.
Junior User
Joined: Jun 1999
Posts: 86
Likes: 0
R-134 conversion
I haven't had air on my 87 F-150 in several years for a variety of reasons. When I approached my mechanic about converting my system over to R134
he recommended I fix my the leaks on the existing system and gas with a Freon replacement gas. He's running it in his very old Chevy and it's got a cold A/C now. Costs about 1/2 what Freon goes for.
Not sure what its called, you can probably ask around for it.
he recommended I fix my the leaks on the existing system and gas with a Freon replacement gas. He's running it in his very old Chevy and it's got a cold A/C now. Costs about 1/2 what Freon goes for.
Not sure what its called, you can probably ask around for it.
Laughing Gas
Joined: Jun 1999
Posts: 903
Likes: 0
From: Banning CA
R-134 conversion
I live in the Lower Desert of Southern California and it gets over 125 in the summer, I converted several vehicles over to R134 including my 1987 F250 SC 6.9. It blows cold for me. IF you dont have good cold air at idle, check your presures both high and low.
Dave
Dave
