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hello randy,
on my 86 245, i checked my low pressure side with a gauge which read below 25 psi (17 psi, i think). before, i just added what was recommended for r134--2.2 lbs?
this last time about 2 months ago, i charged it up to about 30 psi or so. i may have added more than the recommended r134 amount, but it's holding up and it's the coldest it's been since i retrofitted my a/c two years ago in march. the louver temps read something like 56 F at idle, on an afternoon in the upper 80s in may. but it gets colder when driving 50+ mph.
now, in the mid 90s here in houston, tx, it's still nice and very cool. i haven't check the temp again since, though. cools fast.
instead of staying within 2.2 lbs of freon, i went by what was on the manifold gauge this time--picked up the nice, single gauge at walmart. it's graduated just like a regular a/c gauges, but only one hose & gauge.
i did replace the a/c compr about 1.5 years ago with another diesel kiki from the jy. a good unit. and i added a puller electric fan last month, permacool finger chopper, and installed inside the plastic cowling in front of the mechanical clutch fan.
try adding a condensor fan, check the archives about adding a fan, and charge up to about 25-35 psi on the low side.
just some comments on what i did.
regards,
byron golden
86 245
92 245
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