Hello
I would like to add R134 to my system(already converted)
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Where do I find the "low side" charging port on the 93 240?

 

It should be close to the passenger side firewall somewhere, on the receiver/drier (looks like a beer can). Hard to say exactly as conversions vary but follow the A/C hoses and look for the cap on the fitting, most are marked.

 

Yes, that's the location. There is another fitting there which is a factory fill port that has no tool in north america that can fit. However, there is a port on the accumulator as described above.

 

one question did you convert it or did a shop if a shop about how much did you pay

 

A 1993 Volvo 240 was R134a from the factory. There was no conversion.

 

Ah dang my 85 had r12 but dried up I'm trying to see how much to change to r134

 

Rough cost would be around $1000 . It depends on what condition your system is in. Most likely need to flush system , replace receiver/dryer and orifice valve. Maybe need a new compressor then leak test to see if there are any hose or fitting problems.

 

You can effectively retrofit these vehicles by flushing the components, draining the oil from the compressor, then installing a new drier unit with the appropriate fittings.

I use PAG oil on retrofits and they have always gone quite well. It has been over 10 years since I did a retrofit. The main thing is to change the drier and use the appropriate oil.

 

also change all the o rings and seals in the hvac, as hte original ones don't like pag oil

 

thanks any idea where I can get a drier that would fit a 85 I see the fitting are at autozone but dont lnow where to get a drier

 

https://www.fcpeuro.com/products/vol...42-244-245-260
https://www.fcpeuro.com/products/vol...dy-air-1394712


frankly, the only things I'd get at Autozone for a older Volvo are coolant (Zerex G05), oil, and wiper blades. ok, and wax.

 

Ok so all I need to do this conversion is the fittings. The expansion valve, a drier, and the r134a?
if so that doesnt sound that bad

 

Here are some parts for an 85 Volvo 240

https://www.rockauto.com/en/moreinfo...287592&jsn=413

https://www.rockauto.com/en/moreinfo...287592&jsn=420

https://www.rockauto.com/en/moreinfo...287592&jsn=427

If you are going to retrofit an 85 model, I would suggest changing the fan clutch so that is working to its full potential as you are going to need all of the airflow that you can get.

https://www.rockauto.com/en/moreinfo...287592&jsn=448

I would also recommend some type of gasket or baffle between the radiator and condenser so that all of the air coming through the radiator has to pass over the condenser too. At idle, some air will go around the condenser so a trip to the hardware store for some vinyl to act as a baffle would be helpful.

I did this type of retrofit on my 85 Suburban and improved the airflow and performance.

 

Thank you so much for the help I'm just trying to get that nice cool air flowing. Expansion valve, fan clutch, gaskets, fittings, drier, r134a am I missing anything?

 

I would recommend flushing the evaporator and condenser. You have to remove the lines to do it. It is not absolutely necessary but better if you do.

You are going to need a vacuum pump to pull a vacuum before you charge the system. I add oil when I inject the refrigerant but you can also add it directly to the line before you hook it up.

PM me for more details.

 

yes, its important to flush out all the R12 oil from the condensor and evaporator and compressor before you put the PAG oil in with the R134...

I would flush it, THEN change the seals, expansion valve, and drier. then pull a hard vacuum, wait sufficient time, and recharge it.