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Convert r12 to r134 of Technology
R134a systems use less refrigerant and more oil as compared to R12. The receiver/dryer should be replaced. If the new one has a sight glass, it'll be useless after the conversion, and the milky appearance is normal. It's normal for the cooling to be slightly less effective after the conversion.If you have a professional convert the R12 to R134a, you may spend about $250 for the entire service. However, this is much more cost-effective than replacing the entire air conditioning system. If you were thinking about getting an R134a system installed, your cost would be around $2,000 to $4,000. Usually, … See moreThe Charge: Bring the engine rpms up to a continuous 1200-1800 rpm. Begin to add refrigerant (if you have to) SLOWLY until you notice that the air at the vents is noticeably cooler than the ambient air, say at about 65-75 degs or so. At this point grab your garden hose and hose down the condenser; soak it once only.R12, the AC works best with R12. If it is still cooling, I would use some gauges to measure the pressures. and add R12 until the pressures read correctly for the ambiant temperature. If the system needed major AC component replacement I would. consider converting to R134 but some articles mention that to.R12, the AC works best with R12. If it is still cooling, I would use some gauges to measure the pressures. and add R12 until the pressures read correctly for the ambiant temperature. If the system needed major AC component replacement I would. consider converting to R134 but some articles mention that to.Switching from R12 to R134a makes the most economic sense when your A/C system needs major repairs such as a new A/C evaporator, A/C condenser, or A/C compressor. The cost of switching refrigerants normally do not add much to the total repair bill. It is fairly easy to convert vintage cars from the 1990s to R134a.The flush removes most of these unwanted items. It also is used to remove the old R12 mineral oil that was used in the system that is not compatible with PAG-46 oil for the new R134a freon. *** NOTE: YOU NEVER PUT FLUSH THROUGH THE COMPRESSOR *** Parts needed: AC flush: Auto Air Conditioner Clean and Flush (for R12 & R134a). Any AC flush willAbout $450 in parts. Expect an AC shop to want to charge over $1000 to do the conversion. I had my R12 freon removed and after I change the parts (there's instructions in the kit) I have a vacuum pump and gauges to draw a vacuum and recharge with R134. Depending on how bad the leak is you may want to spring for a R12 recharge each spring.the way I read it, the study compared R12 to R134a in two identical systems, and the purpose of the paper was the cooling efficiency of R134a vs R12 in those identical systems. with a retrofit or conversion, as far as the condenser is concerned, I thought I read it needs to be 30% larger with R134a. not sure the evaporator has any impact - at ...AAM CHN&STR CONVERTIBLE&INC CE 21-2 RE- Performance charts including intraday, historical charts and prices and keydata. Indices Commodities Currencies StocksNov 3, 2010 · R12 to R134a conversion. My A/C compressor has gone out. I have a 1970 Mustang convertible with factory A/C. Engine is a 351C. I believe I have the York compressor. Somewhere down the line it developed a leak in one of the compressor seals and it is now making a grinding noise when the A/C clutch is engaged. The system has R-12 in it.Replace the orifice with the 'Ford Blue' Orifice. 134a needs a different size hole in the screen than R12 to work effectively. Believe the orifice size is .067. Here's an example. Distribute the oil evenly across the compressor, evaporator, and condensor before assembly; Re-assemble the system with the appropriate R-134a compatible o-ringsR12 to R134 AC Conversion Part Selection. I have read so many threads about converting the AC system to R134. There are tons of info and need some clarifications on some items. I have a 92 325i convertible (ec28828). I am planning on keeping the stock fan for PnP operation but upgrading the condenser to a parallel flow.C3 Tech/Performance - 1980 r12 to r134 orifice tube size - I am converting my 80 from r12 to r134. Do I use an original 1980 spec orifice tube or a different size due to the difference in the gases? If you do recommend a different orifice tube size, can you please provide the right specs for it and source/part...This is Final video of the Ac conversion from R12 to R134a on my 1993 Chevy Silverado. Warning! Never Charge on the high side. When charging the high side on...Classic Auto Air is your source for converting classic cars like the Ford Muscle cars to 134a refrigerant a/c systems. ...Converting from r12 to r134a. Jump to Latest Follow 11K views 14 replies 8 participants last post by andyray187 May 17, 2006. N. NavySupra Discussion starter 13 posts · Joined 2006 Add to quote; Only show this user #1 · May 12, 2006. In order to get the a/c system to work properly I bowed down and bought the coversion kit for the a/c system. ...R22 to R134a A/c Retrofit Fitting Adapter Kit, R12 R22 to R134a Conversion Adapter Kit for A/c Air Conditioner Refrigerant System Compatible with 1/4 SAE Thread (Gold) $1199. Typical: $12.99. Save 5% with coupon. FREE delivery Fri, May 10 on $35 of items shipped by Amazon. Or fastest delivery Thu, May 9.The molecules in the R134 refrigerant are smaller than the R12 molecules and will leak more easily through the walls of an R12 hose. It us suggested that R134 "barrier hoses" be used with this type of refrigerant. Rick. Sent from my SM-G965U using Tapatalk. 70 El Camino, 5.3L LS Engine, 4L60E Transmission.Buy R12 To R134a Conversion Kit, with Dust Cap, R12 R22 R502 to R134A Fast Quick Conversion Adapter Switch, Adapter Valve 1/4Inch SAE Low Side Port Adapter, R134A Quick Coupler Interface, and Core Valve: Air Conditioning Line Repair Tools - Amazon.com FREE DELIVERY possible on eligible purchasesCharge up with R134a. I have an RV that I plan to do this conversion on. It was down a bit, I have recharged it and tested it with R12a (propane). I have found the leak on the receiver. I plan on replacing the compressor just so I know all the R12 oil is gone. I believe I can successfully flush the rest of the system.You really need to change the receiver / dryer and flush the old mineral oil out of the system with an AC flushing solution. Mineral oil is not compatible with R-134A systems. Ester oil is what I normally used for R-134A conversions on other makes and it is compatible with both R-12 and R-134A systems.https://www.wiseautotools.com/mountain-quick-connect-r12-ac-gauge-conversion-to-134a/ A/C gauge conversion kits from R12 to R134A. It's important to get good...【PREMIUM QUALITY】 - R12 to R134A retrofit fast conversion adapter kit are made of high quality metal and plastic, solid construction for high heat resistance, durability and safety. 【EASY INSTALLATION】 - R12 to R134A retro fit fittings connect to the thread for use with the valve, ...R12 to R134A Air Conditioning Conversion Kit This Mustang air conditioning conversion kit will completely and correctly upgrade your Fox Body 1987-1993 Mustang's R12 system to the newer R134A system. It includes a new Mustang compressor, lines, condenser, all hardware and instructions to upgrade, as well as a stock length serpentine belt. ...Dean. 41411 posts · Joined 1998. #3 · Sep 18, 2006. All I've ever done is replace the refrigerant oil in the compressor, flush out the system, replace the line to compressor O-rings and add the R-134 access valve adapters and charge it with R-134A. But like Tom said, R-12 works much better.If you want to convert it right, you need at least the compressor from a 91-92, they come from the factory ready for 134. The condensor is also different, but I'm not sure if that's a big deal or not. Freeze 12 and all those other 12 knock-offs are definitely a better way to go.EZ Chill-R134a--18 oz cans, it contains 15 oz refrigerant and 3 oz of oil and additives. this can not be shipped by air ,so i had it put in trunk of a Mercedes 230SL convertible ,i purchased as i wanted to convert a my 65 Riviera from R 12 to R134, and also charge a 84 Porsche 911 i owned here as well.No, it's not as simple as just vacuuming and adding r134, but it does not need to be done by a mechanic if you're fairly handy with tools. You also need to flush the old oil and replace with r134 compliant oil. If the system has been open for a while, you should replace the dryer as well. There are some other issues, such as hoses and ...R-134A has a smaller molecule size and is more likely to leak thru R-12 hoses. The R-134A hoses have a liner to slow the leak of gas. If you can I would advise to stay with R-12, if you can get. If you want to convert to R-12 follow Richardodn's advice. A lot of work to convert to R-134A. Also all the system o-rings have to be replaced.We'll show you both a quick and dirty way, and a precise, more complicated formula for converting a Celsius temperature to Fahrenheit (and vice versa). Advertisement Depending on w...Location: Youngstown Ohio. Posted April 27, 2015. It's also worth noting that the 134a system runs at a higher pressure than a r12 system and in some cases the hoses need to be changed with barrier hose . You will only need to put 70-80% of the recommended r12 amount with 134 a .Frequently bought together. Model 1029471 - Corvette Air Conditioning Conversion Kit, R12 To R134A, Late 1977-1982 - This kit includes a re-manufactured compressor which will operate with R134A Refrigerant, a drier, an evaporator orifice and the oil, seals, fittings and adapters. Allows Easy Conversion Includes All Conversion Parts.Retrofitting R12 to R134a by Classic Auto Air. Classic Auto Air is your source for Model Specific A/C kits for 80’s & older Ford, GM, Mopar, Porsche, Custom Street Rods & more.Converting from r12 to r134a. i have a 1987 f150 i have to convert the ac to r134a. I have the new fittings but it says that i have to change the receiver drier because it has to have a different type of desiccant in it i called technical support for 4 seasons to see whats in theirs and i was told that from factory the 1987s have a receiver ...Converting Air Conditioning to R-134 By Rob - [email protected] (Editor's note: Please read this article on Refrigerant Recovery.)I have a 1990 Miata which I wanted to convert to R-134a from R-12. I bought a rebuilt compressor (w/ clutch) from Advance Auto Parts which cost me $350 with a $10 core charge (I kept my factory compressor because I might as well rebuild it as get back a lousy 10 ...227 posts · Joined 2011. #8 · Apr 3, 2011. Yeah, California just switched from 134a to 134ca, which is the same thing, except instead of the puncture top, they are now self sealing tops, which require a special adapter which costs another $6, then you have an additional $10 core charge for each can, so that the state can reclaim the 8-10% ...Or $168 for r134a converted. The one issue with r12 that they said was if there was a leak within 2 weeks, to bring it back to check it out. But they would have to charge me to evac and replace the r12. With the r134 they wouldn't charge me again. Probably because it's much cheaper for them to get.[PACKING] These Low/High side retrofits/adapters/fittings will convert your old 1/4" SAE or 7/16"-20 UNF R12 R22 charging port and make it accept the R134a quick disconnect hose.R134a systems use less refrigerant and more oil as compared to R12. The receiver/dryer should be replaced. If the new one has a sight glass, it'll be useless after the conversion, and the milky appearance is normal. It's normal for the cooling to be slightly less effective after the conversion.May 31, 2006 · Junkyard Dawg. Minimum requirements for converting a system to R134a. If system has any refrigerant R12 left in the system it must be reclaimed by an approved recovery machine. Accumulator/drier must be replaced with an R134a compatible replacement. Conversion fittings and label must be added to the system.Mobile business communications means that you can virtually do most all your office work on the go. Learn about converting to mobile business communications. Advertisement There wa...Converting to 134a - Ford Contrary to popular belief, most cars originally equipped with R-12 can be converted to 134a and still keep you just as cool. ... R-12 is no longer used or produced in many countries and remaining quantities have skyrocketed in price. Since then, the industry standard has been R134a, which is an efficient replacement ...In order to extract the platinum from within a catalytic converter, the converter must be removed completely from the vehicle. Most catalytic converters simply bolt on to a vehicle...So, there is also a specific amount of R134a needed, and since it is low density than the R12, you would have to convert the charge weight to get the proper one during the retrofit process. You will have to fill the system with 80% of the factory’s specified capacity to accomplish the best cooling experience.Feb 27, 2024 · The Montreal Protocol, an international treaty to protect the ozone layer, played a vital role in banning the production and use of R12. The phase-out of R12 led to the emergence of more eco-friendly alternatives like R134a. Benefits of Converting to R134a. Converting your car’s AC system from R12 to R134a offers several benefits.The best way in the world to change from R12 to R134 is as follows: Have the R12 Vacuumed out (inorder to remove every last little bit.) REmove all the lines and replace each of the seals with R134A compatible seals. Replace the receiver drier with a new one that is R134A compatible. Flush the lines, evaporator, and reciever with a certified flush. Contrary to popular belief, most cars oriFound the conversion kit with the fittings and the neutr1991-1993 Cherokee 4.0L R134a Conversion Kit. #CK-9193XJR
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The best solution is to upgrade your R12 based system to R134A. With our upgrade kit, you'll enjoy ice cold air. Best of all, you'll be able to get it serviced anywhere. ... Conversion Kit,R-134a,85-87 Item EK-25-113507-1. Close X. Enter Your Email to Save Products. Enter.CORRECT CHARGE AMOUNT - The typical 134a charge of a factory R12 system is 70-80% of the original R12 charge amount. NOTE - Ignore the sight-glass. A properly charged 134a system will likely show bubbles in the sight-glass. If your sight-glass is clear with a 134a charge, the system is significantly overcharged.R134a conversions do work. Its best to remove all the oil from the old system by removing and flushing the compressor, changing the dryer and all hoses to R134a compatible units. It can be done without the change outs but R134a will leak through R12 hoses due to its much smaller molecule size.Properly recovered the R12, flushed the lines, replaced the receiver/dryer, installed R134 ports, and refilled with R134. BMW actually sells a conversion kit that includes the ports, etc. BMW also has instructions for converting which states that certain R12 Compressors are not compatible with the higher pressures of R134a.Buy Yaocom R22 to R134a A/c Retrofit Fitting Adapter Kit, R12 R22 to R134a Conversion Adapter Kit for A/c Air Conditioner Refrigerant System Compatible with 1/4 SAE Thread(Silver): Windshield & Glass Repair Tools - Amazon.com FREE DELIVERY possible on eligible purchasesJun 10, 2000. #3. I used the same kit on my 86. First remove and replace the orfice, then all the o-rings, then have the system flushed, the pull a vacuum then add the R134. My system still works great, I have no problems with the conversion. Some folks have and I cannot vouch for the way the installation went on theirs, but I did mine myself ...A/C conversion. It's hard to do a detailed step by step on this. The biggest problem is the difference in the oils used in R12. and R134a systems. It's generally accepted that one cannot effectively remove. all the R12 mineral oil from a compressor that has run it. Same goes with the receiver/dryer.A/C systems designed to use R12 will cool best when charged with R12 refrigerant. Even if the system leaks, repairing the leaks and recharging it with R12 is usually the best repair alternative. Converting to R134a typically reduces cooling performance somewhat, and may require some additional modifications depending on the vehicle …R134A Conversion. From 1990 to 1993, the Z32's air conditioning system used the refrigerant called R12. Due to environmental concerns, the EPA declared "And low, thou shalt not sell vehicles with R12 A/C systems." So all the car manufacturers, Nissan included, made tweaks to their cars to use the more environmentally-friendly R134A.R134a refrigerant O-rings are of a different composition than those for R12 systems. R-12 O-rings are black in color. R-134a O-rings are blue or green in color. Ester oil charge for lubrication (amount varies by model year). You can also use PAG (Poly Alkylene Glycol) or Castrol Retro Oil for lubricant. R134a refrigerant (amount varies by model ...The seals used for R12 are the same for R134a. In other words the R134a is alternatine to R12. You have to change the two service valves, the filter-collector unit (the pressure switch is the same) and the expansion valve on the evaporator unit. If you have any other questions dont hesitate to ask. 1.Installation video:Rspeed Miata R12 to R134 Air Conditioning A/C Conversion Retrofit Kit for 1990-93 MiataRspeed.netPart#: NAB-71450Product link: https://www...An R12 to R134a refrigerant conversion chart is a tool used to properly recharge or convert a vehicle air conditioning system based on the refrigerant type and operating conditions...the way I read it, the study compared R12 to R134a in two identical systems, and the purpose of the paper was the cooling efficiency of R134a vs R12 in those identical systems. with a retrofit or conversion, as far as the condenser is concerned, I thought I read it needs to be 30% larger with R134a. not sure the evaporator has any impact - at ...Whenever an R12 to R134 conversion has been done by a PO, it's impossible to know for sure if the original mineral oil was totally flushed from the system, if it was replaced with PAG (R12 incompatible) or ester (compatible) oil, if o-rings were changed, and other unknown questionable procedures.Bonus - no need to vacuum/dry the system or drain old oil. R12a is best filled at an atmospheric charge, works best in systems with a bit of moisture, and has far larger molecule size than R134a - minimizes leaks. Performance wise - it's close to R12, and quite a bit better than R134a. Lower head temperatures to boot.Easy way: have the system evacuated and drained, change the valves for the R134a type, add PAG oil and recharge with R134a. It'll work. Super anal way: either track down the rare '93-94 R134a factory system or get custom lines made for a new modern design universal condenser and relatively easy to find S14 compressor. It'll cool marginally better.Aug 1, 2019 · When doing the conversion flush the entire system then install new orifice, drier/accumulator, compressor, condenser, and add 8oz PAG oil, suck it down to -29" for at least 1 hour (overnight is better) and shut off the vacuum pump and see if it holds vacuum. If it does, then add the appropriate amount of 134A.Apr 8, 2020 · Buy R1234YF to R134A Adapter, Low Side Quick Coupler Conversion Kit， R12 to R134A AC Charging Hose Adapter Fitting Connector Refrigerant Can Adapter Valve for R1234YF/R12 to R134A Car Air-Conditioning: Air Conditioning Line Repair Tools - Amazon.com FREE DELIVERY possible on eligible purchasesFitting Type: Service Cap. Fitting Material: Plastic. Fitting Size: 3/8 Inch. 1. 2. 3. Last. O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. Shop O'Reilly Auto Parts online.Classic Auto Air is your source for Model Specific A/C kits for 80’s & older Ford, GM, Mopar, Porsche, Custom Street Rods & more.No on to "o-rings” to "properly" convert your R12 system. To R134A you will need to use "Esther Oil” synthetic based oil. This eats all of the old o-rings away so you will need to change around 12 o-rings. 4 for the compressor plate. 2 Barrier hoses to compressor. 2 for condenser side connections. 2 Dryer.You have no items in your shopping cart. 1-813-259-7688. 9:30am - 5:30pm ESTCost of Converting an R12 to the R134a System. It will generally cost you about $200 to have a mechanic convert an AC system for you. If you want to replace a vehicle’s AC system, it will cost between $1,500 and $4,000 with an average cost of $2,750. If you decide to have a professional work on your car, you will have several options for ...The DeLorean hoses are only R12-compatible, though, but DMC MW was able to make some R134 hoses for me. DeLorean Performance Industries and John Hervey both sell their own R134 split hoses, but I decided to go with DMC MW and single-piece hoses. The A/C compressor is just an off-the-shelf aftermarket compressor. The stock DeLorean compressor ...WIDE COMPATIBILITY ----- This R1234YF to R134A low side quick coupler fits for R1234YF/R12 to R134A car air-conditioning AC charging. PREMIUM QUALITY ----- R134A to R1234YF adapter is a perfect fit adapter which is made of solid premium aluminum with good quality and strong construction,to ensure highly working performance, long lasting to use.FULL DESCRIPTION: R12 TO R134 CONVERSION R12 TO Jun 16, 2006. #2. 134a in a system designed for R-12 wil
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John. You can convert it to R134 with just a Schrader valve conversion (kits available at your FLAPS). However, it will not be as efficient as if you replace the expansion valve with a new one. The expansion valve is mounted on the heater box, and requires you remove the dash to access it.The molecules in the R134 refrigerant are smaller than the R12 molecules and will leak more easily through the walls of an R12 hose. It us suggested that R134 "barrier hoses" be used with this type of refrigerant. Rick. Sent from my SM-G965U using Tapatalk. 70 El Camino, 5.3L LS Engine, 4L60E Transmission.The common problem when converting from R12 to R134a is lack of knowledge or equipment. The typical scenario here is when the car owner buys an inexpensive "retro-fit" kit from the local auto parts store. These cheap kits usually have a few cans of R134a (either 12 ounce or 16 ounce), maybe an extra can of refrigerant oil, a few generic ...Jul 14, 2012 · As for the R134 oil, 8 ounces of ester or PAG 150 will be fine. The system will probably take a little more than three cans of 134. Just check your pressure as you go. When you get the clutch cycling switch, the parts house should have a retrofit option for it. It'll have the old-style R12 plug but will work with 134.Buy BIHYNGAIR R12 to R134a Conversion Kit, R12 to R134A Convert Adapters, Convert R12 R22 to R134a, AC Retrofit Fitting Adapter Kit, High/Low Fitting Port Retrofit 1/4" to 7/16"-20 UNF Conversion Adapter: Air Conditioning Line Repair Tools - Amazon.com FREE DELIVERY possible on eligible purchases1. Most shops recommend to convert to R134a and find leak, The conversion kit consist of a few adapters. 2. Find leak with R12 and die then fix later. Does anyone know if it is OK (safe) to convert from R12 to R134 after vacuum out all R12, or what else need to be repleaced? I really appreciate any feedback/suggestions. Thanks, HBI would recommend against converting a W123-chassis car to R134A. R12 is readily available on craigslist, I often find it cheaper per can than R134 retail prices. Most folks I've read that have converted them are unhappy with the performace of R134A in their systems. I fixed similar problems with my 1982 240D, filled with R12 and was amazed ...As for the R134 oil, 8 ounces of ester or PAG 150 will be fine. The system will probably take a little more than three cans of 134. Just check your pressure as you go. When you get the clutch cycling switch, the parts house should have a retrofit option for it. It'll have the old-style R12 plug but will work with 134.R12 to R134 A High/Low AC Fitting Port Retrofit Conversion Adapter, Quick Coupler Valve A/C 90° Fitting, High and Low Side R-12 to R-134A Retrofit with 2PC Caps. 478. $1299. Save 5% with coupon. FREE delivery Fri, Jan 26 on $35 of items shipped by Amazon. Or fastest delivery Thu, Jan 25.We'll show you both a quick and dirty way, and a precise, more complicated formula for converting a Celsius temperature to Fahrenheit (and vice versa). Advertisement Depending on w...R12 to R134a Conversion. Working on my late Father's 88 Camry 4 cylinder so we can sell it. Currently R12 with a locked up pump. Keeping costs low as possible. Bought a working used pump and have R12. Would like to save it though and convert to R134a. Going to replace the receiver/dryer and orings. Orifice tube if it has one.R134a is lighter than R12. To get the proper charge during a retrofitting procedure, you must convert the charge weight. Start by finding the refrigerant capacity of your current system. Next, multiply the R12 charge specification by 0.9, i.e. 90 percent. Finally, subtract 0.25 pounds from that amount. For example, if you have 3 pounds of R12 ...R134a refrigerant; R12 to R134a Conversion – Factory Method. The following are the step by step instructions for converting from the R12 to the R134a refrigerant using the factory method: Proper Discharge of the R12 Refrigerant; Removal of the Mineral Oil; Application of Oil; Swapping Out; Replacement of the O-rings; Making Use of the Vacuum PumpIf you need to convert R12 to R134A, there are a few things you’ll need to know. First, you’ll need to figure out the percentage of R12 that needs to be converted. Second, you’ll need to find a converter that can do the conversion for you. Third, you’ll need to have the correct tools and supplies on hand in order to complete the conversion.Features: Our R12 to R134A conversion kit can fix your AC air conditioner refrigerant well, have good fit and effective performance, form a nice seal and hold its shape well. Our R12 to R134A AC retrofit fitting adapter kit is compact, easy to carry and store, convenient to use and fill, and easy to change position, no oil leakage.Re: Converting r12 to r134. « Reply #2 on: September 02, 2011, 05:40:26 pm ». You may not need to replace the compressor per-say, you may just need to add an oil conditioner, if it's a mineral-oil system ( you'd have to check the old compressors spec's to be sure) or just replace it with a polyester type. , yes a new filter-dryer would be in ...What is the ratio of R12 to R134a? The conversion is determined by multiplying the R12 charge value by . 75 (R12 charge x . 75 = R134a charge). Is R-12 refrigerant illegal? R-12 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone.Denver-based ultra-low-cost carrier Frontier has converted orders for 15 Airbus A320neo aircraft to the larger A321neo as the airline continues to grow its fleet. Ultra-low-cost ca...You will want to make sure that all of the r12 AND the old mineral oil is flushed out of the system. You are also going to want to replace the orifice tube, and Id recommend swapping out the accumulator while you are at it. Then all you should have to do is pull a vacuum, fill it with pag oil, and charge it with r134a.Kit wise fittings, 8 oz charge of pag oil, 3 cans of 134a, and a label that says it was converted, Oil type and charge amount. PAG oil doesn't mix with the mineral oil that is already in the system. Use 5 ounces of ester oil and 2 1/2 can's of r134a. Get any old oil out of the compressor if you can.I would recommend ester oil for R12 to R134a conversion if using the old compressor, that oil will work fine with R12 or R134a. Pag oil is good if you are replacing the hoses, compressor accumulator and using solvent to clean the condenser/ evaporator. You need to replace the o rings with the green/purple type do not use the black rubber ones.240 posts · Joined 2001. #8 · Aug 9, 2003. I converted my 1966 convertilbe with V8 and air conditioning to R134a in 1998. These systems use compression flare fittings at all the joints so there are no O rings to replace. Now in 1967 Ford installed the evaporator in an integrated heat/air assembly in the dash.Model 1028185 - Corvette Air Conditioning Conversion Kit, R12 to R134A - This Retrofit Kit will fit virtually all cars, light trucks, vans, heavyduty trucks, agricultural and off road equipment using a mobileair conditioning type system.Depending on the type and condition of the system retrofitting may requireadditional parts not contained in this kit.Kit Includes: 2032FJC A/C Flush Solvent ... This will work ok, but for much better results I woul