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Truck engine bay showing A/C system retrofitted to R-134a refrig…

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A/C Conversion to R-134aView all 15

Engine bay of a truck with hood open showing inline engine

Engine bay of older Ford pickup or SUV with inline engine, alternator and battery visible

Two-panel view of an A/C accumulator and condenser in an engine bay

Open engine bay of a blue truck showing V engine and accessories

Used automotive A/C condenser with hoses, drier and compressor on driveway

Labeled diagram of 80-96 Bronco and F-series A/C system components

Close-up of a spring-lock A/C line coupling and metal tube

A/C evaporator core and accumulator with orifice tube and o-ring kit

Ford R-12 air conditioner caution charge label in English and French

Hand using white fin comb tool to straighten black radiator cooling fins

15photos in this albumView all

Everything has been reassembled. The compressor was shipped with 7oz of oil, and the dye is blended with 1.5 oz, and all other components were emptied, so 4oz of PAG46 oil needs to be added since the total oil capacity is 11 oz per TSB 97-10-05. Normally, 1/3 of the total oil charge is poured into each of the compressor, condenser, & accumulator. To ensure all moisture is removed, I'll hold a vaccum for at least 30 min. Based on TSB 94-19-20, I'll charge the system with 2 lb 6 oz (38 oz) of R-134a.

Factory R-134a service ports use rubber balls (which are easily cut) instead of Schrader valves; the conversion fittings are F3AZ-19E762-A & F3AZ-19E762-B.

Note the spare water stored beside the radiator for use in the cooling system, or w/s sprayer; and the jumper cables behind the battery; and the PS fluid beside the brake master cylinder. There's also brake fluid & engine oil farther back.