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International Automotive Technicians Network
Re: 1977 Lincoln Mark V
Posted to HVAC Forum on 6/16/2024

Hi Russell,

Are you refitting it to R-134a?

I recommend you update the TXV to an orifice tube if possible

If refitting, the volume will be less. I recommend you start off with 1.5 lbs. and use a pressure temp chart. Add a little refrigerant at a time unt... Login to read more.