Automotive Air Conditioning Information Forum

JohnHere wrote: ↑Thu Jul 11, 2024 7:19 am

andrew vanis wrote: ↑Wed Jul 10, 2024 10:29 pm I wonder if it would be easier to splice in a port fitting into one of the high side hoses.
What are the chances the hoses are a standard barrier or reduced barrier diameter?....And how could I check ideally without cutting one

It's probably worth a call to the folks at Cold Hose in Ocala, Florida. They specialize in all kinds of fittings, and I'm sure they could advise you further. Most likely, they can also tell you which type of hose you have.

Thanks JohnHere, I actually did yesterday and the short story on the result of that call is nothing. You are right, they have ALL sorts of things and in this case it didn't yield anything usable.

Its surprising how much I'm missing the high side info :-/ it is frustrating not to be able to verify full status.

If I go the splice route, I'll measure the existing OD of the hose hose and OD of the pipe that goes into it (figuring that will be the ID of the hose) and see what hose and thus fitting might be best fit.

Before then, I recognized the username (Abscate) of the poser/site admin that posted about the pressure switch (image above) as a respected user on the Vanagon site I mostly am on so reached out and he sent me the following so will give that a shot.

---

Yeah that me from Volvo world.

Best thing to do for a high side pressure is get a connector for that high pressure switch and then put the voltage ( 5 v ) onto the right pins to get the pressure reading ,,,,but…..

Unless you think you have a high side problem like plugged office tube or bad compressor, Volvos respond well to an evac, pump Dow, and 680g charge. Spec is 750g but in hot climates you. Will get best performance about 10% under

andrew vanis wrote: ↑Thu Jul 11, 2024 7:29 am Before then, I recognized the username (Abscate) of the poser/site admin that posted about the pressure switch (image above) as a respected user on the Vanagon site I mostly am on so reached out and he sent me the following so will give that a shot.
---
Yeah that('s) me from Volvo world.
Best thing to do for a high side pressure is get a connector for that high pressure switch and then put the voltage ( 5 v ) onto the right pins to get the pressure reading ,,,,but…..
Unless you think you have a high side problem like plugged office tube or bad compressor, Volvos respond well to an evac, pump dow(n), and 680g charge. Spec is 750g but in hot climates you will get best performance about 10% under

Very interesting. Let us know how that all works out.

I've nto read through much of this. You would remove the switch on the drier for old EU cars and then hook your red line to the R12 port.

Tim wrote: ↑Fri Jul 12, 2024 3:10 pm I've nto read through much of this. You would remove the switch on the drier for old EU cars and then hook your red line to the R12 port.

That is the discussion above. It would be nice if that worked however the high switch port is some type of ACME thread that is smaller than the typical half inch.

andrew vanis wrote: ↑Fri Jul 12, 2024 3:44 pm

Tim wrote: ↑Fri Jul 12, 2024 3:10 pm I've nto read through much of this. You would remove the switch on the drier for old EU cars and then hook your red line to the R12 port.

That is the discussion above. It would be nice if that worked however the high switch port is some type of ACME thread that is smaller than the typical half inch.

There were many R12 adapters around, possibly not the one you need. I'm just saying the process was to remove the switch for the high-side line.

Tim wrote: ↑Fri Jul 12, 2024 3:49 pm

andrew vanis wrote: ↑Fri Jul 12, 2024 3:44 pm

Tim wrote: ↑Fri Jul 12, 2024 3:10 pm I've nto read through much of this. You would remove the switch on the drier for old EU cars and then hook your red line to the R12 port.

That is the discussion above. It would be nice if that worked however the high switch port is some type of ACME thread that is smaller than the typical half inch.

There were many R12 adapters around, possibly not the one you need. I'm just saying the process was to remove the switch for the high-side line.

if it could be identified which fitting would fit this it would be really helpful

click on this link for CLOSEUP of fitting
https://photos.google.com/share/AF1QipO ... VUQ19yd2tn

I can't help with that from a photo. I had a half dozen or more in my toolbox. I just kept trying them until I got the right one.

Might glace through the different adapters on the tools page

Service Adapter

Tim wrote: ↑Fri Jul 12, 2024 4:28 pm I can't help with that from a photo. I had a half dozen or more in my toolbox. I just kept trying them until I got the right one.

Might glace through the different adapters on the tools page

Service Adapter

Thanks, I can't tell from a picture either

Wishing I had your tool box.

Fur others, this is the direct link to the adapters on Tims page
https://www.ackits.com/tools/service-to ... ol/page/2/

and

https://www.ackits.com/tools/service-to ... astercool/

The R12 Service port charging adapters are what I would look at first.

Service Adapter

JohnHere wrote: ↑Fri Jul 12, 2024 2:46 pm

andrew vanis wrote: ↑Thu Jul 11, 2024 7:29 am Before then, I recognized the username (Abscate) of the poser/site admin that posted about the pressure switch (image above) as a respected user on the Vanagon site I mostly am on so reached out and he sent me the following so will give that a shot.
---
Yeah that('s) me from Volvo world.
Best thing to do for a high side pressure is get a connector for that high pressure switch and then put the voltage ( 5 v ) onto the right pins to get the pressure reading ,,,,but…..
Unless you think you have a high side problem like plugged office tube or bad compressor, Volvos respond well to an evac, pump dow(n), and 680g charge. Spec is 750g but in hot climates you will get best performance about 10% under

Very interesting. Let us know how that all works out.

Have a 45F drop from center vents at 1800 rpm at 102 ambient. High fan, recirc on.

I'll take it.

The only thing I didn't like is that the overnight pressure test dropped from 415psi to 298psi. I didn't want to go chase it so moved on to an overnight Vacuum test and held 430 microns all night. Charged with 680g. low pressure at 1,800 rpm about 45psi with 102 ambient.