A/C coolant
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Elder User
Joined: Aug 2005
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From: Katy, Texas
A/C coolant
How hard is it to put new A/C coolant in for yourself? I dont feel like payin someone to do it if its a pretty simple task. Also i just replaced my master cylinder and now when i brake it makes a clicking noise kind of like a pop. Its prety un noticeable unless im at idle but i just dnt want another master cylinder going out.
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Joined: May 2001
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From: Cabot, Arkansas
The easiest thing to do is go to your favorite parts store and pick up one of those R134 conversion kits. The instructions are fairly clear and the conversion is not difficult. It will work the best if you get the old refrigerant oil evacuated first as the oils are what is not compatible between R12 and R134.
Check the linkage at the top of the clutch pedal where the master cylinder pushrod attaches for the popping noise.
Check the linkage at the top of the clutch pedal where the master cylinder pushrod attaches for the popping noise.
Post Fiend
Joined: Nov 2003
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From: Nutter Fort, WV
You need to get the R 12 and R 12 oil out of the system by having the system evacuated. Any AC shop can do that for you.
Adding R 134 to an R 12 system will cause the R 12 oil to turn to penut butter, which is a bad thing.
Adding R 134 to an R 12 system will cause the R 12 oil to turn to penut butter, which is a bad thing.
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From: Katy, Texas
thanks scott, I did some more research yesterday and i am thinking that its not worth the time and effort to do it myself. Im jus going to take her in and get it done right. It wouldnt be a big deal if my windows worked, but i cant get the dang motors out of the door, any suggestions?
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From: NC
If wou still have some cooling left keep the system with r12, if you want to convert to 134a pickup a conversion kit, get the old r12 recoverd, pull the system apart and flush the condensor evapator hoses and compressor and replace the dryer and o tube and replace all the orings, resamble averything ,vacccum down to 30 inches of vac, charge with 134a to 80% of the r12 capacity . use only vrgin 134A Do not use any refrigent that has sealers in it. also get a manifold gage set and get some pressures of the system befor tearing it apart
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Joined: May 2001
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From: Cabot, Arkansas
Adding R 134 to an R 12 system will cause the R 12 oil to turn to penut butter, which is a bad thing.
That being said, having it evacuated and properly serviced with 134 is the best way to go.
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From: NC
Originally Posted by cookie88
Only if you let the oils mix. As long as you keep the 134 can upright and only let the gas into the system it will work fine.
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