Search found 6 matches

by JimnJudi
Thu Oct 01, 2020 8:46 am
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Re: Compressor Short Cycles with Correct Charge

The only person I know who has a set of gauges is about an hour away. I'll hook his set up the next time I'm out his way.
A couple more bits of info:
- Drained 1.4 oz oil from original compressor, after draining oil from new one added 2.0 oz.
- Added 1 oz oil to new desiccant bag.
by JimnJudi
Thu Oct 01, 2020 7:30 am
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Re: Compressor Short Cycles with Correct Charge

The 130 was on a dry 72 degree day at 700 rpm and the 240 was a humid 81 at 1500 rpm. Would that explain the wide range?
by JimnJudi
Thu Oct 01, 2020 4:48 am
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Re: Compressor Short Cycles with Correct Charge

When outside temp is 81F, 700 rpm, various readings over 1/2 hour, low side 42, high side 175, 43-190, 44-200, 40-150 At 1500 rpm 35 and 240, 33-175, 34-198. Outside temp 72F, 700 rpm, 30-145, 26-135, 24-130. These are all with approximately 11 oz of refrigerant (ie: when the first 12 oz can is almo...
by JimnJudi
Wed Sep 30, 2020 7:32 am
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Re: Compressor Short Cycles with Correct Charge

I feel confident the amount of charge is correct by weighing the cans before and after and taking into account the two seconds of purge from the yellow hose. I can only assume the contents of the can is 100% R134a. Regardless, the compressor kicks on when only a small amount has been added, and stay...
by JimnJudi
Tue Sep 29, 2020 3:17 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Re: Compressor Short Cycles with Correct Charge

Forgot to add that I brought the total charge to 14 oz on the first charge and the short cycles continued with tepid vent temps.
by JimnJudi
Tue Sep 29, 2020 2:41 pm
Forum: Automotive Air Conditioning Forum
Topic: Compressor Short Cycles with Correct Charge
Replies: 12
Views: 4464

Compressor Short Cycles with Correct Charge

New member here with a difficult issue. I inherited a 2008 Subaru Outback (57,000 miles) with weak cooling. The compressor cycled off/on every five seconds and the vent temps were around 70 F on an 85 degree day. The condenser was clean of debris and the cabin filter new. I had my mechanic remove th...