POA valve testing

[randy500]

Heat it with a propane torch.

[phlegm]

Originally Posted by mrein3

In every AC post I've made when talking about a POA valve I refer to that first picture. There was an awesome post on and AC forum that showed you how to adjust your POA and it was accompanied by that picture. I used to post the link to the instructions but they link was taken down and I didn't copy that photo.

You blow 60 psi in like the picture shows and like randy500 says you adjust your POA with your socket like the picture shows to 29.5psi for R12 (which should be the stock setting) and 27.5 (I thought it was 26.5) psi for 134a.

If you're re-habbing a stock AC system, copy this photo.

There is a video on Youtube doing this on the vehicle as well. This thread and that videow are how I found out my POA was shot.
https://www.youtube.com/watch?v=B95_q7Z8DIE

[phlegm]

Originally Posted by randy500

Heat it with a propane torch.

Thanks Randy, I thought about heat but was worried that close to the box and with all the aluminum. I will try that after this and before I pull it to a bench.

[jjzepplin]

So does this also tell us the expansion valve is good?

[phlegm]

Originally Posted by jjzepplin

So does this also tell us the expansion valve is good?

I doubt it, everything I read said replace the expansion valve every time.

[leddzepp]

Originally Posted by phlegm

I doubt it, everything I read said replace the expansion valve every time.

Yeah, for $25 it’s a no brainer. Also required for warranty to be valid when you replace the compressor.