DeLo A/C identical to GM, not Ford
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DeLo A/C identical to GM, not Ford



Fellow just stopped by Railroad with an '89 GMC truck. His A/C is
configured identical to DeLorean, including accumulator AFTER
evaporator. I guess it does accumulate gas (was dripping with
condensation). Why? Has already been metered and boiled. His low
pressure switch was on side of accumulator like 3 conductor DeLo, but
only two lines. Still plan to experiment with that one at lunch.

Old Ford A/C is all suction driven. Compressor INPUT is heart of
system. Rather than orifice tube, which appears to respond to high
side pressure, uses a "throttle suctioning valve" which responds to
low side (is located after evaporator). Actual pressure change occurs
at an expansion valve, but it just closes, not meters.

JZD was an old GM man, but he didn't personally design car...

Oh, this fellow also had problem losing refrigeration cycle in traffic
(engine mounted fan), so he added an electric fan in front of
condensor. Is tied to compresor clutch line. Odd, but works. Not
applicable to DeLorean I know, but anyone converting a different
marque in their stable might consider same.

Bill Robertson
#5939







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