I need to recharge my A/C but I haven't seen the R12 canisters at auto stores. I have a 92 which uses R12 and I know the 93+ are R134. Has anyone done this conversion from R12 to R134?

Is it possible? and what would I need?

 

Search eBay for "Johnson's Freeze 12".

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboixtc &raquo;</TD></TR><TR><TD CLASS="quote">I need to recharge my A/C but I haven't seen the R12 canisters at auto stores. I have a 92 which uses R12 and I know the 93+ are R134. Has anyone done this conversion from R12 to R134?

Is it possible? and what would I need? </TD></TR></TABLE>

R12 has been banned to public sales since the early 1990's only certified automotive shops carry it and the cans run about 100 bucks each now a days.

You can use R134a in your system while many will say it cannot be done.. it will work. what you will need to change is the oil in the system. which includes you have remove the compressor, and drain the oil, add the new oil, replace the Receiver/dryer and recharge the system.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mykizism &raquo;</TD></TR><TR><TD CLASS="quote">remove the compressor, and drain the oil, add the new oil, replace the Receiver/dryer and recharge the system.</TD></TR></TABLE>

I have done the complete tear down and rebuild, I just need to know what viscosity oil to use with 134a. Autozone's "ZNet" only shows the viscosity specifications for factory 134a, there is no information on the proper oil viscosity to use when doing a retrofit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by no1knows908 &raquo;</TD></TR><TR><TD CLASS="quote">

I have done the complete tear down and rebuild, I just need to know what viscosity oil to use with 134a. Autozone's "ZNet" only shows the viscosity specifications for factory 134a, there is no information on the proper oil viscosity to use when doing a retrofit.</TD></TR></TABLE>

you can use the viscosity oil of R134a. they are about the same. Or you can search google and buy a Retrofit kit.. either works.. in my experiece i just use the pag oil thats off the shelf at the autoparts store.

 

make sure you get the retrofit kit. it will have different sized fittings for r134a. also good idea to replace all of your o-rings as well.

 

in advance autoparts they sell the conversion kit dat comes with evrything u need

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h23fukvtec &raquo;</TD></TR><TR><TD CLASS="quote">dat</TD></TR></TABLE>

 

that(lol)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spoonfedcrx &raquo;</TD></TR><TR><TD CLASS="quote">make sure you get the retrofit kit. it will have different sized fittings for r134a. also good idea to replace all of your o-rings as well.</TD></TR></TABLE>

Im not sure how the system is on our ludes(mine is removed) but on R134a retrofits your supposed to change all the orings. R12 molecules are much larger than R134a. The composion of the R12 orings is different and will leak with R134a in the system.

 

Would explain why I blew out all my 134a even after using the "complete retrofit kit". Used the quick connect adapters and the "conversion oil" and still eneded up loosing all my freon after a little over a month. I bought a new o-ring kit, drier, and expansion valve so I might as well change it all.

 

I still haven't done this and will need to after doing my JDM digi cc.

Should I just take it somewhere and get it done? I still have idea as to how to do this. If I even had a clue or someone could help me out, I'd be more than happy to post a write up to help anyone else who needs this done.

 

it may be easiest to just buy an entire r134 system from a newer prelude....

 

Its not a system that lots of DIY guys are going to help you do or work on themselves without the right tools.

It is kinda dangerous to work with. You should use a recovery system before you do anywork. The recharge kits have a guage with them though so atleast you don't over fill them. If you have to service it or convert though you need to recover the r12. I had a friend do the conversion. The parts arn't much money, its just the recovery unit that is important.

If you still want to attempt it I'll talk to him and consult the manual and post the procedure here. I don't think the new manuals cover r12 conversions though. ANybody know if any manuals do?

 

Yeah I just called Honda and they want almost $600 to convert and recharge.

 

can't you just get a shop to empty out the system, do the work urself, and then have them recharge it after you're done to save some green?

I ask beacuse my 92 has already been converted, i'm replacing the bad compressor/compressor clutch soon though and I planned on having the system evacuated and doing my work and having a shop refill the R134 after I was done.

I'm patching up info from ehre and there as I go though.

best source of any information (for a noob like me) that I've found so far:

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/%5Bfaq%5D-how-charge-your-c-air-conditioner-conditioning-system-home-1665946/

 

anyone anyone?

 

Retrofit kit from Honda P/N 38020-SM4-A1AH. Its a teeny tiny box, contains oil, valves, threadlocker, and a underhood sticker.

 

YUuuuuuuupp. Thats the game plan boi

 

cool thats the plan then.

anyone got any links to any writeups or anything that can help me figure out what I'md oign while i'm doing it?

 

Wow, that's very informative. What should I grab from the 94 parts car to do this conversion?

 

Anyone??

What should I grab from the 94 parts car to do the R134a conversion?

 

Well, I'm guessing I should just rip out my entire A/C system and put in the one from the 94 in. Just spoke to sean1121, and he's the only on here who's actually made a suggestion about the parts car. Thanks anyway guys.

 

Has anyone had any experience removing an entire A/C system while the motor is still in the car? I just wanted to know if anything in particular would get in the way.

 

Wowwww anyone????