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HELP!!!! Converting R12 to R134 A/C System?

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Old May 16, 2004 | 06:57 PM
  #11  
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Originally Posted by KeepinOnThaDL
how can you tell if you have R12 or R134? i have 93 lx
You have R12
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Old May 28, 2004 | 06:35 AM
  #12  
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Originally Posted by NeverBX
to convert it just go to your local auto parts store and get the converter kit. i think its like 30-40 bux or something.
so if i get the converter kit and install, would tires plus fill it with r134 freon? because I was there today and they wanted $250 to convert (f*ck that) so would I be good to go after I convert?
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Old May 28, 2004 | 07:02 AM
  #13  
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I saw a how to on TV once to convert and it looked ez, but then again that is something that I wouldn't want to mess up on
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Old May 28, 2004 | 07:47 AM
  #14  
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Most likely the quote for $250 involved "proper" disposal of the old refrigerant. If you are wanting to convert, chances are you don't have any refrigerant left in your lines anyway.
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Old May 28, 2004 | 11:26 AM
  #15  
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yeah I don't get any cool air, so I don't have any refrigerent.

edit - can I just use this?
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101
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Old May 28, 2004 | 02:58 PM
  #16  
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Originally Posted by KeepinOnThaDL
yeah I don't get any cool air, so I don't have any refrigerent.

edit - can I just use this?
http://www.jcwhitney.com/webapp/wcs/...&storeId=10101

a friend of mine used that kit on his car. it was easy to install but the only thing is that the car didnt really cool as good as when it had r12.
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Old May 28, 2004 | 03:27 PM
  #17  
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Originally Posted by KeepinOnThaDL
how can you tell if you have R12 or R134? i have 93 lx
there's a tag on the underside of your hood that says what kind of refrigerant is used in the AC system. I'm guessing you have R-134 since that's what is in my 94. i think 1990 was the cutoff to convert to R-134 on all manufactured cars in the US, but i'm not sure.
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Old May 28, 2004 | 10:11 PM
  #18  
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I believe they have a A/C recharger kit for $35. Well thats what I got at my local Target store. It comes with 3 bottles to refill the good stuff plus the adapter to convert and a gauge so you don't over fill and a cd video so you don't mess up.
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Old May 28, 2004 | 10:47 PM
  #19  
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Converting R-12 A/C Systems to R-134a

BACKGROUND

Because of environmental concerns, production of R-12 refrigerant is being phased out. Honda is making retrofit kits available to convert systems that currently use R-12 refrigerant to R-134a refrigerant use.

VEHICLES AFFECTED

ACCORD:
1986 - 89 - With Nippondenso compressor only
1990 - 93 - All

CIVIC:
1985 - 87 - With Sanden compressor only
1988 - 91 - With Sanden compressor only
1992 - 93 - All

PRELUDE:
1990 - 92 - With Sanden compressor only

PREPARATION

Before retrofitting the A/C system to use R-134a, test its performance and inspect all components.

^ If the system is not cooling correctly, determine the cause (restriction, refrigerant leak, system contamination, etc.) and repair it before continuing.

^ If the system is not fully charged, determine if there are any leaks and repair them before continuing.

^ If the compressor is making noise, repair or replace it before continuing. Refer to Parts Information Bulletin A95-0005 for the proper components.

^ If the system has been open to the atmosphere, replace the receiver/dryer.

PARTS INFORMATION
R-134a retrofit kit A:

1988 - 93 Accord
P/N 38020-SM4-A1AH, H/C 4729828

1986 - 87 Accord
P/N 38020-SM4-A2AH, H/C 4729836

1988 - 93 Civic
P/N 38020-SM4-A1AH, H/C 4729828

1985 - 87 Civic
P/N 38020-SM4-A2AH, H/C 4729836

1990-92 Prelude
P/N 38020-SM4-A1AH, H/C 4729828

Receiver line "A" for 1990 - 91 Accord:
P/N 80341-SM1-A18, H/C 4052049

RETROFIT KIT INSTALLATION

1. Use the R-12 recovery/recycling station to remove the R-12 from the system.

Note Failure to remove all the R-12 from the system will cause contamination of the R-1 34a recovery/recycling station.

2. Disconnect the R-12 recovery/recycling station.

3. 1990 - 91 Accord only: Inspect receiver line "A." If the charge valve is fitted to a block and points toward the alternator, installing the retrofit valve will leave insufficient clearance. Install a new receiver line "A" (see PARTS INFORMATION) with the charge valve mounted in the line.

4. Use a shop towel wetted with Honda brake cleaner to clean the threads on the existing valves. Apply Locktite (included in the kit) to the threads of the existing valves. Install the R-134a retrofit valves from the kit.

5. Connect the R-134a recovery/recycling station to the system. Evacuate the system.

6. Add 120 ml of PAG oil (included in the kit) to the system.

7. Determine the amount of R-134a refrigerant needed to charge the system by subtracting 50 ml (1-2/3 oz) from the system's R-12 capacity.

8. Charge the system with the proper amount of R-134a refrigerant.

9. Start the engine and let it idle. Turn the A/C system on and off several times. Listen for any abnormal noises.

10. Repeat step 9 with the engine running at 1,500 rpm and 3,000 rpm.

11. With the system on, check the cooling performance at the dashboard vents.

12. Check the high and low side pressures and compare them to the R-12 specifications. They should be slightly higher.

13. Turn off the A/C system and the engine. Disconnect the recovery/recycling station. Install the caps on the valves.

14. Place the R-134a caution label from the kit over the existing R-12 label. If the R-12 label is no longer there, place the R-134a label on the right damper housing.
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Old Jul 6, 2022 | 08:11 AM
  #20  
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Do I use PAG 46 or PAG 100?
I have a 1992 Civic DX
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