Search found 11 matches

by rattle_snake
Fri Jun 04, 2021 1:48 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Tbird, Agreed on shroud spacing, however I had to work within my packaging constraints. Had to move entire drivetrain (again) just to get fan to fit with a/c pump at all. Lots of work as you would imagine. Supposedly can cause cavitation which lowers efficiency. Pressure pinch point should be on bla...
by rattle_snake
Wed Jun 02, 2021 11:23 am
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Looking at your photos, it appears that the truck has clear glass. In your area of the country, it would help lower the interior temperature by a few degrees, and ease the load on the A/C a bit, if you had the windows tinted. Yes tint is on my list today. Classic pickups look good either way. But l...
by rattle_snake
Wed Jun 02, 2021 11:17 am
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

In some cases the probe has to be in a certain location to work properly, but I do not know how to determine that. The original location may not be ideal You are showing an auxiliary test fan in use. I assume there is no electric fan on the truck, just the mechanical. Is it shrouded? Wonder how far...
by rattle_snake
Tue Jun 01, 2021 10:11 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Thanks again Tim for your help. Yes the system has a cable controlled temp switch (aka thermostat) that should cycle comp off when it gets below temp setpoint. I tested at all positions, perhaps cable shifted or device is broken. I could hear it open/close before install, so appeared to work. Maybe ...
by rattle_snake
Tue Jun 01, 2021 12:17 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Yes it has R12 service ports on the back. too close together for 134 adapters... I read the 134 conversion sticky, minimum requirements. I attempted to get a new condenser locally as I already checked fitment earlier as drop in replacement. But that exact model was sold out. So I changed plans again...
by rattle_snake
Fri May 28, 2021 1:41 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

I drained the oil out of the comp, it is orange and has a sweet smell. Is there any way to easily determine if it is mineral or something else? solvent test? Mineral is clear and odorless, but obviously any oil in system has been in contact with refrigerant, hoses and so on. Just wondering if this i...
by rattle_snake
Fri May 28, 2021 8:23 am
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Hi John, Thanks for your help. Yes, unknow exactly what I have here. I'm guessing the old york comp and everything but the evap was replaced pre-r12 ban. The job was a hack. As stated the system was holding pressure when I bought the truck, which I found odd. The pump was so mis-aligned it was not p...
by rattle_snake
Wed May 26, 2021 12:20 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

I can only assume it is set up for R12, and was running on R12. Has R12 connectors and an R12 specific pump (9285). That said I assume it has mineral oil in comp/cond/evap now. Guessing these parts were installed in the late 80 or 90s, but have no idea. Question is, should I a) do nothing, put captu...
by rattle_snake
Wed May 26, 2021 10:56 am
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Any additional advice appreciated. 12 vs 134, oil, thanks. https://lh3.googleusercontent.com/pw/ACtC-3di8Sqce0QJMHWihoTYIEFMvNeLkpofEqzmasjy64q5YycBBqoXjntHFmDSf6sbEtfyx0kxXhVya0Rq-BS0IQ8B217SJZ3MwqNbafuCUMcJPjg44FpIwlFVVea4c5_Eq22Qr3Hc3RPsGLd6vBL-PqUZ=w1063-h797-no?authuser=0 https://lh3.googleuser...
by rattle_snake
Tue May 25, 2021 1:42 pm
Forum: Automotive Air Conditioning Forum
Topic: 1972 F-250 R12 system refurb
Replies: 27
Views: 12300

Re: 1972 F-250 R12 system refurb

Hi Tim,
Thanks for your help.
Yes have an existing PF condenser. Not sure it can be effectively flushed, or if it needs to be for 134 conversion.

Any advice on oil situation appreciated.

Justin