. Refrigerant dispenser with hose and gauge (Also known as a Charging Hose) Owner’s manual for reference. #6. Jul 7, 2015 · According to the EPA’s announcement the chosen date for mandatory R-134a phase out is the year 2020. CAUTION: Do NOT overfill the the A/C system with too much compressor oil. A low oil level can starve the compressor for oil and lead to compressor failure. This HVAC valve core removal tool allows you to complete valve core replacement jobs in most R134a automotive A/C systems. 1 Year Limited Warranty. Between the age of your factory A/C system and the hassle of getting For massive fire in cargo area, use unmanned hose. For example, if R134a gas is released into the atmosphere, it has a lifespan of 13 years in comparison to Jul 7, 2017 · 1987-1993 Mustang 5. Ever since 1993 R-134a has been the staple refrigerant for automotive applications. 9 or 90%. Charging – Charge the A/C system with R134a to approx. The air conditioning system in your 1986 Mustang is nearly 30 years old now. Mar 18, 2022 · Received 32 Likes on 21 Posts. # 3. You don't need to change anything, just buy the conversion kit. Fitting Material: Brass. This video shows you how to convert your vehicle's A/C Jul 26, 2007 · With those old R12 systems that had very low air flow from the vents and had temped air at best held 3. We took the Bronco on an extended road trip and the AC worked perfectly. The R-134a and R-1234yf pressure charts are for guidance when using A/C Pro ® recharge kits, refills, and gauges. R134a Conversion Kits. This tutorial is specifically for the R134a type of refrigerant that newer use. ----If this video was hel Dec 11, 2013 · Add a few ounces of new oil (if any part of the system had R12 with mineral oil in it, use Ester oil. To charge the A/C in your Mustang at home, you will need a decent set of manifold gauges, a vacuum pump, PAG oil and a few bottles of R134A refrigerant, and a can tap. Quantity. Keep in mind that all information here is provided “as is” without any warranty of any kind. In the interest of continuous development, we reserve the right to change specifications, design or equipment at any time without notice or obligation. 0 Resto Factory Style R134a A/C Conversion. Jun 7, 2003 · Received 0 Likes on 0 Posts. I've dabbled into AC a little but never handled a conversion from R12 to R134a. Also, be sure and set aside a few hours to get this one accomplished. May 12, 2016 · Despite having 4 vehicles, this is the one I need to get to work and these temperatures are reaching above 100 degrees now in Phoenix. You'll need a 2nd mortgage to refill that system. Dec 17, 2007 · Orion Motor Tech 5FT AC Diagnostic Manifold Freon Gauge Set Fits for R134A R12, R22, R502, with Couplers, Adapter for Car A/C System Automotive Air Conditioning Maintenance 4. Angry Possum. Done. Reply Like. 5 times the ambient temperature entering the condenser. Note the pressure reading on the valve, which should be at least 45 psi. 1994. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. 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. Jun 18, 2015 · In this video, I show you how to refill your AC refrigerant in your car. Feb 23, 2020 · Manual. The factory hoses and components are most likely dry rotted or defective by now. Opening the air conditioning refrigerant system can cause personal injury. Pressurized container may explode when exposed to heat or flame. The condensors are larger on the 134a units. 31st 1995 to have them all converted to R134a . May 9, 2012 · So the cost of R-12 is real expensive, think along the lines of a 12 oz can of R-12 is about $80 last time I checked vs a 12 oz can of R-134a going for $19. Flush system with acetone. Install all the other components, install the adaptor fittings on the service ports. original R12 1000 grams, R134a retrofit charge 900 grams. When the air conditioner in your 2012 Ford Escape starts blowing hot air, you likely have a freon leak. Dick. Jun 29, 2019 · 2015 - 2020 Ford F150 - A/C Refrigerant Capacity - The owner's manual for my 2016 says the A/C capacity is 1. 14 – 1. 5 lbs of R-134A but the A/C specification sticker under the hood says the actual system charge is 1. FORD This works when the R12 charge specification is listed in pounds. I converted my 1966 convertilbe with V8 and air conditioning to R134a in 1998. Jun 24, 2011 · Ford Truck Enthusiasts Forums. 2WD. Jul 6, 2012 · The A/C system in many older vehicles needs to be converted from R12 refrigerant to R134a refrigerant. Jul 27, 2017 · The AC conversion to R134a has so far been just what I needed. 1987 - 1996 F150 & Larger F-Series Trucks - 1990 F150 AC 134a Conversion - I am a new member that is converting my 1991 F150 AC system from R12 to 134A. 2 lb. 4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis. Had he replaced the expansion valve with one calibrated for R134a, it would have probably worked out just fine. the refrigerant entering the condenser will be around 130°F. O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. 13. The factory specifications matches my foggy memory. Swap the drier, maybe some hoses, fittings and all the o-rings, and flush the system, well as the R12/R134a dont A/C Pro ® ’s recharge kits and accessory gauges have snap-lock couplers that only work with the correct type of refrigerant. Mar 10, 2012 · Check our A/C Pro® R-134a system pressure chart for guidance using A/C Pro® recharge products. A/C Schrader valves keep refrigerant inside the A/C system by using a spring-loaded piston that is located inside the valve body. 1987 - 1996 F150 & Larger F-Series Trucks - R134a Conversion (1993 f150) - Ok guys really simple, for a legit conversion disregarding cost, would it be better to use a kit Oct 12, 2022 · The typical 134a charge rate will be approximately 70-80% of the factory R12 charge amount. Sep 22, 2014 · 09:05 AM. 5 Tonnes. Temperature resistant gloves. Find Air Conditioning Service Ports R134a, high side A/C Service Port Size and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: REWARDS 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. Use to replace contaminated compressor oil and compressor oil lost by leaks or replacement of an A/C system part. 0 currently R-134A, the compressor is leaking out of the front shaft seal but the a/c still works, I have been adding a couple of cans every season for several seasons now, and I want to redo the entire system as Jun 13, 2005 · After that tuen the vehicle on and the ac on max and fan on high. Shop O'Reilly Auto Parts online. When the air conditioner in your 2012 Ford Fiesta starts blowing hot air, you likely have a freon leak. Prior years had higher R-12 capacities (44 -52 oz) and used higher amounts of mineral oil, typically 10 oz. 50 May 13, 2014 · Fox A/C R134 conversion. holder or monitor nozzles, if possible. 3, Viper 5701. O'Reilly Auto Parts carries R-134a refrigerant and oils formulated to work in your vehicle's A/C system. May 17, 2018 · Received 184 Likes on 140 Posts. Then shake the bottle of R-134a (they also have the oil in them) and attach it to the gauge. 06:21 PM. I put a 134A type clutch cycling/pressure switch in. R134a Conversion Kits are identical to the R12 Kit except supplied with a 134a compressor and proper hose fittings for system charging. Change or restore the filter drier. Engine oil (with oil filter) 6. Mar 4, 2024 · Step 1: Gather the Necessary Tools and Materials. The design of this valve core remover is the easiest solution for replacing old valve cores. Almost a 1/2 pound more than what the manual says so I assume Ford made a change after the manuals Feb 12, 2023 · R134a refrigerant is lighter than R12. Watch the pressures when filling and use the pressure/ambient temperature charts as a reference. for a complete fill. 0 Factory Style R-134a A/C Conversion. 1 qt (12. com/a-c-charging-and-refrigerant/r134a-refrigerant/p/sub-zero-r134a-synthetic-refrigerant-stop-leak-cold-air- Jun 11, 2002 · Received 0 Likes on 0 Posts. If you don’t see the Bronco a/c part you’re looking for, there’s a good chance we may still be r-134a refrigerant charge capacities in ounces / grams f-series econoline escape flex mkt explorer focus fusion mkz 41/1162 19/539 21. When the air conditioner in your 2014 Ford Escape starts blowing hot air, you likely have a freon leak. R134a Conversion and Parts. Classic Auto Air is your source for Model Specific A/C kits for 80’s & older Ford, GM Jun 24, 2024 · However, here are some general guidelines for normal operating pressures in an R134a AC system: Low-Side Pressure (Suction Pressure): At a temperature of around 65°F (24°C), the low-side pressure typically ranges from 25 to 35 psi. All I did was replace: All the O-rings, Accumulator, Orifice tube/expansion valve. PAG (ISO) 150 - Thick. Feb 16, 2013 · Almost forgot, pull vacuum for at least 1 hr after reassembling system with new o-rings and the 134a orfice you have. g. . PAG (ISO) 100 - Medium. 9 pounds then subtract by 0. Item. Fitting Size: 1/4 Inch. In this case, PAG 150 is generally accepted by most technicians. 134a removes a higher heat load from the interior, so it is extremely important for the fan clutch and condenser to be in excellent condition on any 134a conversion. Not open for further replies. Die nachfolgenden technischen Informationen und Tipps für die Praxis wurden von HELLA erstellt, um Kfz-Werkstätten in ihrer Arbeit professionell zu unterstützen. Idle RPM Reading - Raised Idle to 1500 RPM's. Low side readings 43 psi at idle Hi side readings 150 psi at idle Off idle, say around 1200 rpm, Low side 34 psi Hi side 160 psi Wichtige Hinweise zum Befüllen der Klimaanlage mit Kältemittel und eine Tabelle für Kältemittel- und Ölfüllmengen sind hier ebenfalls zu finden. Only qualified personnel should service the air conditioning refrigerant system. Jul 25, 2017 · Ford started phasing in R134a in 1992 on select model cars. Apr 4, 2024 · On the high side, R-134a pressures usually run 2. Modern day R134a systems blow ice cold AC at high blower with enough velocity to blow your toupee' off. 90% of the original R12 charge quantity e. R12 is going to be extinct in a few more years and I converted my 86 F-150 to R134A for less than cost of a few cans of R12 around here. on an R-134a system. Torredor Red - 7. Check fluid levels when adding or refilling as recommended in your 2013 Ford Focus Hatchback user's manual. 1993 F-250 A/C---R-12 0r R134a? R12 is definitely cooler than 134a unless your vehicle came equiped with 134a. You'll find three common viscosities when choosing PAG oil. When the valve core is depressed, the pin pushes against the spring, allowing Oct 14, 2022 · Classic Auto Air is your source for Model Specific A/C kits for 80’s & older Ford, GM, Mopar, Porsche, Custom Street Rods & more. To discover the capacity for refrigerant, you want to use the specs for the current system and multiply the R12 charge by 0. www. 5 - 1997 7. Then, subtract that result by 0. Air conditioning refrigerant: R134a. It seems simple enough to me. Oct 7, 2020 · Buy 10pcs AC Caps R134a Cap A/C Cap 13mm Low Side 16mm High Side Air Conditioning Service Charging Port Caps R134a AC System Leakproof Hat Low Pressure and High Pressure 5 Red High and 5 Blue Low: Valves - Amazon. . Required in the majority of Ford and Lincoln vehicles equipped with conventional (belt-driven) A/C compressors and R-134a refrigerant. Oct 12, 2022 · Recommended steps to converting your Ford R12 air conditioning system to 134a. autozone. WARNING : The air conditioning refrigerant system contains refrigerant under high pressure. Warning/Identification Labels – Remove all labels from the vehicle Feb 2, 2016 · Hello everyone, I have a 1999 Explorer Sport with the 4. Wide compatibility: Fits all vehicles 1976 – 1995. Power Hungry Performance FU Chip. The easiest way to convert is to lift out the whole sealed system from a '94-96 (& '97 >8500GVWR) F-series or Bronco (including the underhood HVAC box & hood latch support) with the same engine as Feb 17, 2016 · Have the OEMTOOLS 24529 No Gas Loss R134a A/C Valve Core Remover and Installer on hand for a quick fix. High Side - 270 PSI. Once the compressor was replaced by ORly after the initial failure of the first one, I was able to install the new one and run it to the shop for a charge of R134a. 1/598 21/595 30/850 26/737 21/ MUSTANG R134a CONVERSION KITS. You might notice a loss in performance after you complete the conversion. Outside temp was 100 degrees in the shade. The deadline was Dec. Silverline 4" TB Exhaust. Please check the existing valves size to ensure the proper usage. If your vehicle has it or been retrofitted it will have the larger quick connects at least on your suction line. If you have questions about converting your classic ride’s air conditioning system from R12 to R134a, feel free to contact Classic Auto Air for more information. 7 L) Engine coolant. Find quick and easy help to interpret your pressure reading. #8 · Aug 9, 2003. Then screw the screw in, until it punctures and back off until it starts filling. At an ambient temperature of around 75°F (24°C), the low-side pressure typically ranges from 35 to 40 psi. Hank's system was "calibrated" for lower pressure, resulting in poor R134a operation. Those systems hold 1. Jul 24, 2022 · Likes: 94. 134a kits remove a higher heat load from the interior, so it is extremely important for the fan clutch and condenser to be in excellent condition on any 134a conversion. I changed out everything, but the evaporator core, which I flushed. Most passenger cars or light trucks manufactured since 1995 were built for R-134a. 5-2. When the air conditioner in your 2018 Ford Escape starts blowing hot air, you likely have a freon leak. Jun 9, 2009 · The BEST way to recharge an ac system is to remove all refrigerant and recharge by the weight on the sticker. 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. BRONCO. Please be noted that all capacities listed here are approximate. 3L Power Stroke Diesel - Refrigerant and Pag Oil capacity - Guys I'm needing some info ASAP I drained the A/C system back in January to pull my engine. 5-4 lbs of R12. Mar 28, 2021 · Anyway, R1234YF is a completely different chemical. 515 – 545 g. The information contained in this publication was correct at the time of release. Start the truck and turn your air conditioning on high, and make sure the vents are open. 25 pounds to get the desired value. 134A charge will be 80% of R-12, or around 3 lbs. Use only when specified — do not use as a substitute for any Apr 26, 2024 · Discover the AC refrigerant capacity chart for Ford cars, including R134a and R1234yf filling quantities, ensuring air conditioner performance. Shop Genuine OEM Ford Parts Online - YN-19 Ford Part Number, this part number refers to the Refrigerant R 134A and is used in the following Ford Fitment Applications: All OEM Ford Parts on our Genuine Original Ford Parts Online Catalog come with a 2 Year/Unlimited Mile Warranty that is valid at any Ford Dealership Worldwide. Jul 9, 2020. Connect the hose from a can of the refrigerant to the low pressure valve. They did make an exception for vehicles that are specifically manufactured for export out of the country. 3. Empty oil from the compressor and flush oil from high-pressure and suction lines. 2002 F350 SRW Crew Cab Shorty Lariat. Parts used - Parts used - https://www. GM sometimes recommends oil which is close to ISO 135. It's even slightly flammable in comparison to R134A which is not. jerryparks. R134a Conversion Kits are identical to the R12 Kit except supplied with 134a compressor and proper hose fittings for system charging. Low Side -50 PSI. May 30, 2021 · R134a is safe to discharge (it's the "air" in canned air horns & computer-cleaning air cans), so it's not as tightly-regulated. Jul 1, 2018 · R-134a is the most commonly used refrigerant for automotive applications rather it be your twenty year old Toyota Camry or your Kenworth T-200 semi-truck. The system was vacuumed for 30 mins and filled correctly with R134. 05-30-2015, 07:13 PM. No part of this publication may be reproduced, transmitted, stored in a retrieval system or translated into any language in any form by any means without our Jun 8, 2010 · Here's what I found online for someone whose A/C was working decent: 2007 Ford Focus SES - R134a. Diesel. 937 lbs. And it works better. Most compressor companies want proof of 95% removal of the mineral oil. Converting R-12 Air Conditioning To R-134a. So, if the ambient temperature is 80°F, you’ll see high side pressures running between 176-psi and 200-psi. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. Contents under pressure. Subtract ¼ or 0. Thank you!! Great info I appreciate the heads up bud. 2. We definitely recommend reading more Oct 23, 2005 · Here is a pressure list I found for R138a R-134a TEMPERATURE PRESSURE CHART Ambient Temperature °F / °C (Temperatura Ambiental) Low-Pressure Gauge High-Pressure Gauge 65°F (18°C) 25-35 psi / 172-241 kPa 135-155 psi / 931-1069 kPa 70°F (21°C) 35-40 psi / 241-276 kPa 145-160 psi / 1000-1103 kPa 75°F (24°C) 35-40 psi / 241-310 kPa 150-170 Jun 11, 2002 · Converting R-12 Air Conditioning To R-134a. 25 pounds to get the proper amount of R134a charge. 9) – 0. 25 pounds from this number. Jul 18, 2017 · The total system oil capacity for many late model passenger car A/C systems is only about 4 ounces (120 ml). Jan 18, 2022 · Evacuation – Using R134a equipment, evacuate the A/C system for a minimum of 40 minutes at the vacuum of -100kPa. If not, withdraw and let fire burn out. 0L OHV engine (Vin X). Note: If the ports are not labelled, try connecting the recharge kit to both unlabeled ports on the AC hoses. Using an A/C flush kit, flush the evaporator and condenser to remove any remaining mineral oil in the system. Now in 1967 Ford installed the evaporator in an integrated heat/air assembly in the dash. If you are standing in the front of the truck the low side is on the left and the high on the right all you need to do is add the new fitting to the left side and add oil then 134 the high side you will add a fitting but not use it. again. 6 qt (12. Evacuate the system and check for leaks, and recharge. Idle RPM Reading - Idle was between 750 to 900 RPM's (hard to tell) Low Side -54 PSI. I'm just in the process of recharging my AC system with one of these AC Pro kits that has a cheap gauge on a can and a little thermometer for the vents. At 60f high side should go up to 135-150 psi at 100f 175-190 or so. Again, it uses a different oil and has differences to ac system parts like the condenser and expansion valve. 6 out of 5 stars 140 ratings Capacities and Specifications. com FREE DELIVERY possible on eligible purchases Feb 1, 2021 · Steps To Convert R-12 to R-134a. So you are in a grey area. Ensure your 1987-1993 Mustang's air conditioning system is functioning at full potential with this factory-style R134a conversion system. PAG REFRIGERANT COMPRESSOR OIL. At 200-psi. Jul 7, 2017 · Start at seventy-five percent of the R12 weight and go up from there until the system is properly charged. 99 currently. = R134a Charge Level. Apr 15, 2019 · WIDE COMPATIBILITY ----- This R1234YF to R134A low side quick coupler fits for R1234YF/R12 to R134A car air-conditioning AC charging. PAG (ISO) 46 - Thin. 4 L) Brake fluid. This covers all Jun 7, 2018 · A factory R134a 1994 F-series truck takes 33 oz. System takes 7 oz of PAG46. You have to get an oil test at the beginning of this project and keep on changing the oil, pulling unit into a vaccum, charge with r-134a run for a while,stop unit reclaim gas take oil test until you get 95% (the majic number) of Aug 8, 2018 · OE Style High Side Port Adapter R-134a A/C Service Schrader Valve Primary Seal Fitting W/Replaceable Valve Cores - 10 Pack Visit the Sherco-Auto Store 4. I have a 1986 F150 XLT Lariat with factory AC. Ensure your 1986 Mustang's air conditioning system is functioning properly with this factory style R134a conversion system. It will come with the conversion fittings. 0 qt (5. The original hoses and other components are most likely dry rotted or defective. The goal is for all vehicles with the model year of 2021 to use an alternative refrigerant in place of 134a. Replaces R12 with R134a charging port 1/4" SAE or 7/16”-20UNF adapter. The cap on your air conditioning valve protects the core from external elements and debris, preventing contamination and potential leaks. 93 GT, every part of the ac system is new, bought the car this way. Oct 20, 2021 · A new more environmentally friendly vehicle air conditioning system refrigerant gas (known as R1234yf) has become widely used (instead of R134a) from the 1st January 2017 on passenger cars and Light Goods Vehicles (LGVs) up to 3. Received 3,453 Likes on 2,399 Posts. Drain the compressor oil and recharge with 134a-compatible oil. Last. The three main questions I have at the moment are Aug 19, 2021 · This retrofit kit allows the conversion of a system running old refrigerant R12 to run on r134a. May 20, 2016 · Step 2 – Recharge the system. Fitting Type: Service Cap. Is the air conditioning in your 1999-2007 Ford Focus not When the air conditioner in your 2013 Ford F-150 starts blowing hot air, you likely have a freon leak. Apr 14, 2006 · If the compressor is short cycling on and off and the high side is low say close to static low side then you have a low charge. 6. To ensure the right charge, you must fill the new system with between 75 and 85% of the factory-set capacity for optimal cooling. (PAG or Ester Oil) Replace or restore all rubber hoses with barrier hoses. May 25, 2007 · The reason being R134a works better under higher pressures than R12. Feb 25, 2021 · Part 1: In this video I start the conversion of the AC from R12 to R134a on a 1992 Ford E250 Econoline Van. You need to charge until duct temps are near 40 and compressor suction at the compressor starts to get cold. Jul 27, 2014 · 32 oz is your R-134a capacity. The charts are intended to help provide an understanding of a vehicle’s air conditioning system pressure, which can be helpful during the diagnostic and recharge processes. As an example, let's say the R12 charge specification is Nov 22, 2022 · First, know how much the original R12 refrigerant does have your current system and multiply the r12 charge by 0. 5 lbs of R134a. 1992 f150 R-134A conversion. When R-134a replaced R-12, PAG became the factory specified oil. com. Formula: (R12 charge specification x 0. there should be a tag on the radiator support or hood with ac capacity. I've seen many cans of R12 on eBay, they're around $30-40 a can, but that stupid license requirement means I have to have a shop recharge it. Recharge The A/C On A 1999-2007 Ford Focus DIY: How To Add R-134A Refrigerant To Car Air Conditioner. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a freon. Cool containers exposed to flames with water until well after the fire is out. By 1994 all cars and light duty trucks and most medium to heavy duty trucks were using R134a. Vent temps are about 60 degrees, which sucks of course. Before 93 we used R-12 for our vehicles and now, as I write this article in 2018, there is a push to phase Only qualified personnel should service the air conditioning refrigerant system. Aug 9, 2003 · 240 posts · Joined 2001. May 30, 2015 · Likes: 3,106. Too much oil can hurt cooling performance. It i When the air conditioner in your 2013 Ford Focus starts blowing hot air, you likely have a freon leak. We’ve been providing rebuilding and restoration services for air-conditioning parts for the hobbyist since 1977 and our knowledgeable staff is here to help. Before you begin, make sure you have the following tools and materials: Refrigerant (R134a or R1234YF, depending on your vehicle’s system) Safety glasses. Be sure to consult the instructions provided with your A Only qualified personnel should service the air conditioning refrigerant system. In 96' it changed to 38oz, which is weird, because the only thing Most passenger cars or light trucks manufactured since 1995 were built for R-134a. If it's below 45 psi, there isn't enough refrigerant in the system and it Jul 7, 2017 · 5. 86 L) Brake fluid. Turn on the AC and set it to the coldest setting, and the fan speed to maximum. 25 = Amount Of r134a Refrigerant. 25 lbs. Engine oil fill capacity including the oil filter. acprocold. If all parts were originally R134a, you can use PAG 46 oil) Add the rest of the oil to the new accumulator. 1. Hey all, redoing the the a/c system on my 92 f150 5. 9. Cut the hose and clamp it to the torch nozzle (see pic) and then into the cannister and the compressor. Received 12 Likes on 11 Posts. Whether you need a single part or a complete system repaired, we can help. 3 out of 5 stars 638 4 offers from $28. Take the R12 charge specification and multiply it by 0. Take the vehicle to a repair shop licensed for A/C work that can evacuate the system of R-12 and recover it properly. Jun 28, 2022 · Start the engine. welcome to FTE. Wichtiger Sicherheitshinweis. 4L Power Stroke Diesel. 2 to 2. Be sure to check out A/C Pro ® ’s full line of products for R-134a and R-1234yf vehicles. 2008 f250 refrigerant charge. This prevents R-134a from being put into a system that requires R-1234yf, and vice-versa. My general recollection was a conversion vehicle took ~80% of the rated R12 charge. 6 4. These systems use compression flare fittings at all the joints so there are no O rings to replace. Capacity. Systems w/o Suction Valve Minimum Requirements. Mar 23, 2011 · If you can't find one, I have seen a R-12 /R134a conversion kit (a connector with 7/16" R-12 on one side and the 13mm quick connect R-134a on the other) at the hardware store, you can get that and then a R-134 hose. Good morning all. Though they operate at nearly the same temperature and pressure it's properties are a bit different. Dont screw in the puncture needle until youve attached it to the low end fitting. Formula: (R12 Charge Specification x 0. I would bet yours was R12 if it was a factory installed AC system. 33oz is the system capacity for the 94-95 R134a models, according to the sticker on the radiator core support. an rn mh nr op lv fm bt ey wv