Search found 5 matches

by ZOOOOMZ
Mon Sep 25, 2017 5:01 pm
Forum: Automotive Air Conditioning Forum
Topic: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees
Replies: 10
Views: 13333

Re: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees

That's FANTASTIC advice, Cusser; THANKS! I did drive it today, and was pleasantly surprised that it performed even better on the road in actual driving than it did in driveway tweaking! It bottomed out at 35F Vent air, on the highway, and 41F at stoplights... The air feels truly 'chilled' now, which...
by ZOOOOMZ
Sun Sep 24, 2017 6:31 pm
Forum: Automotive Air Conditioning Forum
Topic: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees
Replies: 10
Views: 13333

Re: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees

I'm declaring victory! I installed a vacuum operated shutoff valve in both coolant lines to the heater core. (Motorcraft F87Z-18495-AA) The result was zero warm coolant to the heater core, except when the heater or defroster is turned on. Now I've got consistent 41F vent air, with 32F accumulator @ ...
by ZOOOOMZ
Sun Sep 24, 2017 5:39 am
Forum: Automotive Air Conditioning Forum
Topic: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees
Replies: 10
Views: 13333

Re: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees

All of these measurements were at 1,200 rpm engine speed, windows open, all vents closed except center vent. These latest were in ambient of 88F; I don't know the humidity, but, based on the condensation and frost observed, I'd say it's fairly high humidity. When I did slow the engine to idle speed ...
by ZOOOOMZ
Sat Sep 23, 2017 9:03 pm
Forum: Automotive Air Conditioning Forum
Topic: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees
Replies: 10
Views: 13333

Re: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees

Thanks for the advice! First, I adjusted the pressure cycling switch 1/4 turn CCW, which improved the cycling such that it cycled between 25-40 psi, but it was still only able to produce 49 degree vent air at 25/215 psi. Next, I took another 1/2 turn CCW on the pressure switch, and this stopped all ...
by ZOOOOMZ
Thu Sep 21, 2017 5:31 pm
Forum: Automotive Air Conditioning Forum
Topic: 86 Bronco 134a all new system can't get better center vent air better than 50 degrees
Replies: 10
Views: 13333

86 Bronco 134a all new system can't get better center vent air better than 50 degrees

I've converted an '86 Bronco to 134a by installing a new Compressor (delivered with 3 oz oil inside), all new hoses, new condenser, new accumulator, new FOT (red), new low pressure cycling switch (26psi off/47psi on), flushing&drying the evaporator, then adding 5 more oz of PAG 100 oil to the ne...