Cost 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 ...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. ...Oct 5, 2018 · This video covers the basics on R12 to R134a conversion, as well as some things to consider before and while converting your system.----If this video was hel...This item: 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 . $8.99 $ 8. 99. Get it as soon as Wednesday, May 22. In Stock.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 ... R-12 To R-134a Retrofit Valve 7/16 Low Side Port Adapter with Blue Dust AC Cap Universal for Air Conditioning Systems. 4.2 out of 5 stars. 166 ...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 purchasesR12 to 134A Conversion Chart; Sell us your Parts; Support; Troubleshooting; Dealer Info; Request A Part; Submit Photos; Request a Catalog; Terms & Conditions; Technical Diagrams; Frequently Asked Questions; Aftermarket Systems. BLOG. R12 to 134A Conversion Chart. Contacts. 1-813-259-7688; 1-813-254-7419; 1-813-259-7688; [email protected] ...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.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. 4.0 out of 5 stars. 60. $6.99 $ 6. 99. FREE delivery Thu, May 16 on $35 of items shipped by Amazon.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 ...Refrigerant Can Leak Easier. For starters, R12 systems and R134a systems are designed differently to accommodate the gaseous state of each. R134a systems work at higher discharge-side pressures than R12 systems, which could lead to compressor seals leaks. Additionally, since R134a is composed of much smaller molecules, it has a greater chance ...Install 134a charge port adapters. Charge with 134a between 70-80% of the original R12 charge amount. Note: Hot gas valve will need to be adjusted during the charging process to properly adjust the low side by-pass pressure to 20psi. Replace any O-rings with 134a compatible. Recommended: Install hi/lo pressure switch.High-Side Discharge Port. We took our ’87 Ford F-250 to an A/C shop that had R-134a adapters, which also fit our smaller R-12 ports. On our truck, the high-pressure side port was located on the ...The early cars and 924S have the same capacity, 40.6 ounces of R12, conversion to 134 would be a charge of roughly 2.0 lbs. That's 32 ounces. The others (later 944's and 951's) have a smaller capacity, I think it's roughly 2.1 lbs. Therefore the correct charge should be 27 ounces of 134.In some areas, R12 may still be legal and available, but R12 will probably be more expensive than R134A. The fittings for recovering, evacuating and charging the A/C system are different between R12 and R134A, as is the equipment required to do it. As far as cost is concerned, it will depend on who does the work, and what type of refrigerant ...The R134a conversion seems to work better than both the R12 and R134a factory systems. The R12 system on the Grand National was a 3.25 lb (52 oz) system. The general rule of thumb is that the system should take about 80-85% of the R12 number in R134a refrigerant. Thus, I expected the system to take at least 40 oz of R134a.A short video covering tips for retrofitting older A/C systems to R134a. It's not as simple as adding R134a refrigerant. Be sure to use proper fittings and s...For automotive air conditioning systems converting from R-12, R-22 to R-134A Quick Disconnect Coupler. Completed with a 13mm low side port, Valve core and Blue Dust Cap. Works Excellent if you're trying to refill an R12 R22 system with R134a. Works flawlessly and doesn't leak. Simple Part but Worked Great.Learn how to convert your car's old R12 system to R134a using the factory method or the easy method. Find out what parts and supplies you need, how to flush and oil the system, and how to calculate …Using R12a in a R134a system is fine by the EPA and so is using R12a in a R12 system after it has been converted to R134a. Converting R12 to R134a just involves changing to R134a fittings and putting R134a in. Considering there is no way of know if R134a was in the system after you put R12a in, I would say that just swapping the fittings is fine.Instead you can convert an R12 system to an R134a system with a few parts and some basic tools. Step 1. Discard any R12 refrigerant still in the system by taking your vehicle …To convert your car's AC R12 system to R134a, only a few changes are needed, such as making the pressure ports, receiver drier, and pressure switches compatible with R-134a. To draw the refrigerant from the can, connect the blue hose to the low side port and open the system. Now below are some practical steps to convert R-12 to R-134a system.R12 virtually non-existent, last time we were able to get remanufactured stuff it was going out to dealers at $700 Canadian for 30lb cylinder. Personally would advise against conversion to R134a on older vehicles. There is the oil issue and also some seals and hoses dont take to 134 like they did to 12.Or change back to r12 but no oil change will be needed,just be sure to use correct orfice tube for r12. R 12 will work with the same oil as 134,but 134 will not work with r12 ester oil. Personally may want to change orfice to 134 orfice and use the 85-90% original charge when recharging. This if all components are working correctly will be as ...Nov 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.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.Jul 18, 2019. #3. There is a charge amount difference between 12 and 134. IIRC, They hold roughly 1.7lbs of R12, the conversion for R134 is supposed to be about 75% of that. When I did mine last week, it was happiest with only 1lb of R134, so keep that in mind as well. Just don’t put the same amount of 134 in as 12 came out.Manual. Jul 9, 2020. #6. You don't need to change anything, just buy the conversion kit. It will come with the conversion fittings. Pull the old r12 out and put a vacuum on it for a hour or so, and then put the conversion kit gas/oil mix in it. Done. Angry Possum.Convert R-12 to R-134a Procedure for SubZero and all refrigerators and freezers! No Sludge occurs!Convert R-12 refrigerators & freezers to R134a , The Facts ...The drains are on the side of the body. Remove both drain plugs to drain it and fill it through one hole. If you have an old R-12 system and you want to convert it to an R-134a system. You will need to do the following:The oil needs to be blown out of the system, and drained from the compressor. (DO NOT FLUSH COMPRESSOR) The compressor will ...Make sure the A/C system blows ice cubes! We go over inspection and repair of every component. #Moby the Lowered Squarebody Crewcab Dually gets the FULL A/C...Changing the desiccant to XH-7 is usually recommended if an R-12 system is converted to R-134a. The desiccant should also be replaced if a blend contains R-22 because R-22 is not compatible with XH-5 or XH-7 desiccant. The recommended desiccant in this case would be XH-9.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.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 ...Too often, we focus all our effort on creating and hosting an engaging webinar content but not enough time on the next step. Here are nine simple ways you can convert more webinar ...Apologies for the delay in replying but I couldn't find this immediately. I don't know if the kits are still available but this covers the procedure for cars from 1975 to 1990. For the 1991 on model the instructions are slightly different. Converting AC from R12 to R134 240 1975 to 1990.pdf. (3.37 MiB) Downloaded 1493 times.If you have a bad part, its actually cheaper to go ahead and convert the system rather than pay $35/lb. for R-12 (R-134a is $7/lb.). I’d been wanting to convert to R-134a (Dupont’s name for R-134a is Suva) refrigerant for years, due to the high cost and eventual unavailability of Freon.R134a refrigerant is lighter than R12. To ensure the right charge, you must fill the new system with between 75 and 85% of the factory-set capacity for optimal cooling. To discover the capacity for refrigerant, you want to use the specs for the current system and multiply the R12 charge by 0.9 or 90%. Subtract ¼ or 0.25 pounds from this number.R134 from what I understand is less efficient than R12 and must be run at higher pressures. If the new compressor is designed for R134, it would likely run at higher pressures. Regardless of what you put in it, the rest of the system may not be designed to handle these pressures. Thus, you could mix R12/R134 in an R12 system (R12 compressor ...Nov 15, 2012 · And two addaptors to screw onto you factory A/C lines, $10.00 ( for the 134 charging hoses) When you charge your A/C system. Whatever the factory charge is. REMEMBER R-134 has a different expansion rate than R-12, So you use LESS. To get it to function and be just fine, You MUST go with the 80-Per.Cent charge.None of the other refrigerants currently being marketed as replacement or drop-in substitutes for R-12 are approved for use in GM vehicles. R-12 and R-134a are not interchangeable. R-134a cannot be added to fill a low R-12 system. The combination of the two materials can cause high system pressures, which could cause damage to the system.An R-12 compressor that is operating properly can, in most cases, be left in the vehicle when it is retrofitted to R-134a. However, if a compressor failure is the reason the vehicle is in for service, and the vehicle will be retrofitted, or if a vehicle has already been retrofitted with R-134a and the compressor fails at some time in the future ...Jun 1, 2015. #8. R134a has a smaller molecule that seeps through old style hoses and seals. In other words, if your system has a minor leak with R12, it will be a major leak with R134a. Then there's the fact that 134a doesn't cool as well and there may be a compatibility problem with the compressor oil. R12 is around.The conversion of R12 to R134a refrigerant is according to a formula. Applying this formula will convert the value of the original R12 charge to the R134a charge. You can begin the formula in pounds by multiplying the R12 charge value by .75. When the scales are in point story .25 or .5 increments, it is adjusted to the highest quality.Whether R134a performs as well as R12 in any given a/c system depends upon system components and the amount of R134a used. Given two identical vehicles, each with the same weighted amount of refrigerant, the vehicle with the R134a has the “capability” to remove more heat (measured in btu’s) from the vehicle than the same type of vehicle …Remove the harmful R12 and refit your system with the R12 to R134a conversion, which we will discuss in more detail later in the article. There, we will learn what are the essential parts of these kits and how to carry out this procedure. 1) condensing coil, 2) expansion valve, 3) evaporator coil, 4) compressor.Function: converts from R-12 to R-134a air conditioning system, this valve can be screwed on top of a closed AC system that just needs a little refrigerant or top off ; Easy to install: connected to the thread for use with the valve, 1 gas valve inside, fitted with a plastic protective cover ;2 Reasons the 134A conversions will never work correctly. the gas filament inside the expansion valve is set to an R12 temperature. So original expansion valves will never work properly with 134A temperature. At night you might get a slight cool moment. Secondly, the design of the condenser is a "tube and Fin" design.FULL DESCRIPTION: R12 TO R134 CONVERSION R12 TO R134A CONVERSION A/C EFF. 1-122 THIS SB IS A FULL CONVERSION. RELEASED 3-27-00 LB REV 1 RELEASED 5-21-02. JB. Each delivered OEM part will meet the original manufacturer’s specification or, if the part is not an OEM part, it will meet or exceed the original manufacturer’s specification.Or change back to r12 but no oil change will be needed,just be sure to use correct orfice tube for r12. R 12 will work with the same oil as 134,but 134 will not work with r12 ester oil. Personally may want to change orfice to 134 orfice and use the 85-90% original charge when recharging. This if all components are working correctly will be as ...Jul 8, 2010. #4. proliane cooling and heat i believe is making the true multiple path condensers for our trucks now (81-87), would nicely compliment the r134a conversion and make it alot colder over the old r12 single path flow. I plan to install one whenever i get around to doing my ac, i have everything else.PDF (portable document format) files are convenient for sending and sharing online, but they are not made for editing. If the file is in Microsoft Word, you have more options when ...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 model year.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.1.79M subscribers. Subscribed. 5.3K. 641K views 9 years ago. Retrofitting AC systems is something that has been done for many years now. In 1996 systems …About this item . WIDE COMPATIBILITY - Charging port adapter R12 R22 Port to accept R134a Quick Disconnect. These Low/High side retrofits/adapters/fittings will convert your old 1/4" SAE or 7/16’’- 20UNF R12 R22 charging port and make it accept the R134a quick disconnect hose.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 ...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.BMW Refrigerant and oil capacity charts || TechChoice Parts. Oil and refrigerant capacity table for BMW vehicles. www.techchoiceparts.com. from there I got "R12: 53 ounces=1502 grams, mineral oil 6.75 ounces=191gram". since convert R134a system refilled to about 75% of original capacity, I got refill R134A with 39.75 ounces=1127 grams. Question 2:This video starts out with me showing you how to retrofit an AC system r-12 to r-134a on my 1977 Chevrolet C10, but is interrupted by a lunchtime mishap whil...The molecule size of R134a is smaller than that of R12, so there was concern that R134a could leak out through the hoses and flare fittings that R12 systems used. R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn't cool as well as R12.