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conversion to r134a 89 Plymouth

Anonymous on Wed March 19, 2003 7:05 PM User is offline

Year: 1989
Make: plymouth
Model: sundance
Engine Size: 2.50
Refrigerant Type: r12

I am going to rebuild my a/c system (evaporator, compressor, condenser, receiver/dryer and hoses). I wish to convert to r134a. Are hoses and receiver/driers sold today for my model year compatible with r134a. My research tells me that the dryer has to be xh7 or 9 to avoid destroying the dessicant bag. Are the hoses barrier type? If not, should I try to get parts for the 1994 Plymouth Sundance, since that model year used R134a. I'm concerned about the hoses for 1994 year. They look like a different length from mine. The high pressure valve is located on the dryer for my year. I don't know about 1994 Plymouth. Should I try to get a low pressure switch for r134a, or am I okay in getting a direct replacement for my year? Are the o-rings sold for my model year compatible for my year, or do I have to get different rings for r134a? Tanks

TRB on Thu March 20, 2003 9:37 AM User is offlineView users profile

Most shops that keep their stocks current will be using R134a components. Best to get a new hose set which uses barrier hose or have an a/c shop rebuild the ones you have. NBR or HNBR o-rings are used with R134a so again be sure to only use these types.

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Chick on Thu March 20, 2003 12:07 PM User is offlineView users profile

I would look up the parts you need, drier and expansion valve, and e-mail Tim at Ackits.com for the prices and ask about the O rings and get a bottle of Nylog to coat them. You won't have leaks. You will also need BVA 100 Ester oil for your system. You can check out there site at Ackits new site Use quality parts, charge to pressures and you'll do fine. You can e-mail me if you need the vac/charge instructions..Hope this helps..

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Chick
Email: Chick

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mk378 on Thu February 05, 2009 12:02 PM User is offline

Many TXV systems have a factory "trinary" style switch on the high side which will also cut out on low pressure (to protect the compressor in case of near-total loss of refrigerant). This will work for R-134a as well.

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