Search found 41 matches

by tbirdtbird
Mon Aug 17, 2020 6:04 pm
Forum: Automotive Air Conditioning Forum
Topic: 1979 F150 will not cool below 60F register temps/evap partially warm
Replies: 11
Views: 3416

Re: 1979 F150 will not cool below 60F register temps/evap partially warm

Today, unfortunately, new has little meaning. We had a devil of a time determining why we had high pressures on a system. Bunch of new parts incl new condenser. Was actually a new install on a vintage car. Finally decided condenser was no good. Once it was out, we shook all kinds of shiny aluminum c...
by tbirdtbird
Mon Aug 17, 2020 12:51 pm
Forum: Automotive Air Conditioning Forum
Topic: 1979 F150 will not cool below 60F register temps/evap partially warm
Replies: 11
Views: 3416

Re: 1979 F150 will not cool below 60F register temps

Which brand pump? name brand or HF? Have you changed the oil in the pump? That can make a lot of difference. Let's start there; sounds like low charge, but if there are non-condensibles (air) in there that tends to raise the pressures. How much less or more 134 have you tried? If no recovery machine...
by tbirdtbird
Tue Aug 11, 2020 3:37 pm
Forum: Automotive Air Conditioning Forum
Topic: 1969 Chevelle SS 396- factory air specs
Replies: 8
Views: 2429

Re: 1969 Chevelle SS 396- factory air specs

You probably mean R12, not R10.

"There are lots of charts out there that list in oz, without specifying weight or volume.
For example, they will say you need 48 oz of refrigerant and 10 oz of oil ..!"

oz is a measure of weight, at least in the USA
by tbirdtbird
Sat Aug 08, 2020 1:20 pm
Forum: Automotive Air Conditioning Forum
Topic: 1961 cadillac conversion
Replies: 64
Views: 25825

Re: 1961 cadillac conversion

Long thread. Has re-heating such as faulty blend doors etc been discussed. Sorry if it has been addressed
by tbirdtbird
Wed Aug 05, 2020 12:02 pm
Forum: Automotive Air Conditioning Forum
Topic: 2006 Ford F250 6.0 diesel AC accumulator replacement..how much oil?
Replies: 3
Views: 1754

Re: 2006 Ford F250 6.0 diesel AC accumulator replacement..how much oil?

Drill a hole in the bottom and measure what comes out. That amount of fresh oil goes in the new one
by tbirdtbird
Tue Aug 04, 2020 7:42 am
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 11802

Re: Forgot more than I know

"the condenser as its behind the radiator "
YIKES
lots of heat soak from the radiator in that case. Hard to believe it ever worked.

It is gonna take posters smarter than I am to get you out of this mess
by tbirdtbird
Mon Aug 03, 2020 9:41 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 11802

Re: Forgot more than I know

Wonder what is controlling the fans now? Imagine cycling the fan on a residential CU (Condensing unit)? What is the gap between the condenser and the radiator? Any trash, leaves, etc between the two? Is there any way air can get around the condenser before it goes thru the radiator? You may need air...
by tbirdtbird
Mon Aug 03, 2020 4:42 pm
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 11802

Re: Forgot more than I know

The method you want to use to adjust the charge is unconventional, and I am not convinced the charge level is wrong. Doug just followed me along with the idea of not enough airflow, and he knows lots more than I do. We do a lot of custom work here, and we always make sure the condenser fan is on if ...
by tbirdtbird
Mon Aug 03, 2020 11:18 am
Forum: Automotive Air Conditioning Forum
Topic: Forgot more than I know
Replies: 36
Views: 11802

Re: Forgot more than I know

From initial post,
"24" fan on high blowing directly into the grill of the car"

May have condenser issue nonetheless.
When temps get hotter instead of the fan use a garden hose on the condenser to see what happens
by tbirdtbird
Sun Aug 02, 2020 4:08 pm
Forum: Automotive Air Conditioning Forum
Topic: More RV Problems
Replies: 3
Views: 1962

Re: More RV Problems

Please provide both low and high side pressures at 1800 rpm when posting a problem.
Also ambient, and vent.