A/C info needed please

[mvpco]

HI ALL!

I found out it was not the hoses at all!!! It was the R134 adapter for the low side, it had a split oil ring...wow!! i changed it out and no more pressure loss and it held a vacuum...sweeeet!

I have about 46 lbs pressure and will lower it after running a few days.

I changed out the compressor and dryer, Air is working but needs to be colder... I shut the hot water flow off just in case till I rule out everything.

I dont know about POA or VOA? Valve, when they did the R134 change over on this burb a few years ago, if they adjusted that. I remember 2 years ago reading on the list about the pressure adjustment on that from R12 to R134. dont know if that will help in lower the temp alittle bit more.

The rear air seems colder than the front???

Things known:
new compressor and clutch assy.
new dryer
new R134 & oil charge installed about 32 oz??(about 2, 18oz cans) front and rear air 1972 burb
hot water shut off to inside cab
flap all the way flipped for air flow to go through evap. side
46 psi on low side(should I lower it or wait and run it for a few days then bleed it off?)


any thoughts???????

[mvpco]

Hi All!

Would it be wise to replace the POA Valve with the following?
http://www.parts123.com/parts123/yb....P99.95~~~~~~~F

[mvpco]

I went on a 100 mile round trip today with A/C on and checked pressure when I returned and it is down to 35 psi(in the blue area) and was colder than when I started. So so far it is doing good, or atleast better. I will get a temp gauge and check the air temp at vents next.

[JimKshortstep4x4]

Do you have enough freon in your system? The manual lists the capacity of the Burb with rear AC at 4 lbs. 8 oz.

Jim

[mvpco]

Originally Posted by JimKshortstep4x4

Do you have enough freon in your system? The manual lists the capacity of the Burb with rear AC at 4 lbs. 8 oz.

Jim

WOW! Thats total right, for front and rear???
looks like I need more freon, I only put in 2 lbs

[mvpco]

I have 4 lbs 8 oz in and temp at center vent is 52 degrees and out side is 92 degrees and that was at 1pm and pressure is about 38 psi


thanks!!!

[JimKshortstep4x4]

The capacity of a system without rear AC is 3 lbs. 12 ozs. so the rear AC adds another 12 ozs.

Sounds like it is working pretty good!


Jim

[mvpco]

Originally Posted by JimKshortstep4x4

The capacity of a system without rear AC is 3 lbs. 12 ozs. so the rear AC adds another 12 ozs.

Sounds like it is working pretty good!


Jim

thanks Jim for the info, I overlooked that.