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'88 740 A/C questions[ALL/1998] posted by Adam B. Dixon on
Wednesday, 26 March 1997, at 5:20 p.m.
The A/C on my '88 740 wagon has a leak on a pipe/hose in the underside front right corner of the engine compartment. I have several questions for which any advice is appreciated:
1. What is this section of A/C line called? Cost? 2. If I am able to have the system purged, is it reasonable for me to attempt to replace this section? 3. I called Volvo about the R12-to-R134A conversion kit (saw a post on the SwedishBricks FAQ). The local cost is $78. Is this worth considering?
Thanks for your thoughts!
Adam Dixon
Re: '88 740 A/C questions[ALL/1998] posted by Stoney on
Wednesday, 26 March 1997, at 6:34 p.m.
Adam, You can get the hose replaced by any good hyraulic hose type shop. I did both inlet and outlet hoses for $50 with new hose and fittings. Be sure to replace ALL the o rings and lube 'em well. O ring seal leakage is main bummer in Volvo AC units. I haven't tried r12 to r134 swap so can't help but with r12 selling for more than good cocaine I'd suggest the swap. Stoney
Re: '88 740 A/C questions[ALL/1998] posted by Adam B. Dixon on
Friday, 28 March 1997, at 4:15 p.m.
Thanks for the advice, Stoney. I am a newbie to A/C repair (most auto repair for that matter!) and have one or two more questions. When you say to have the work done at a hydraulic hose shop, what should I expect them to do? Are you describing that the shop would reassemble the fittings where the hose is connected (with me responsible for the disassembly)? My idea of the flow of the repair work is like this:
1) evacuate remaining R-12 from system (done by a shop w/the evacuation equipment). 2) disassemble hoses/fittings of the section to be replaced. 3) insert new hose 4) reassemble fittings 5) recharge w/refrigerant
If I try the R134A conversion kit, then there is some additional level of disassembly/reassembly to replace the different parts required by the kit.
Any additional detail/clarification is greatly appreciated! :)
Best regards, Adam Dixon
Re: '88 740 A/C questions[ALL/1998] posted by Robert on
Thursday, 27 March 1997, at 9:52 p.m.
Adam, I believe the retail price for a Volvo accumulator is actually more than the conversion kit. You should replace the accumulator whether you convert or not. The conversion kit contains an accumulator, a R-134 fill valve, and a can of Ester oil. Ester oil is compatible with both refrigerants. It should cost about the same or even less to convert the system while you make the repair.
My hat's off to Volvo for being enviroment friendly and for making it possible to convert to R-134a at a reasonable price. Most manufacturers don't even offer this option at this point.
Robert