a/c in a different vehicle

[powerboatr]

54 does seems low based on a few computations,
i will use it as a starting point,
the oil just for the lines comes out to 11 oz.
how much for the condenser?
i do have a new tx valve and dryer being delivered tomorrow.
spent two hours at o rielles going through the big book of ac parts, and found the replacements, glad i took both with me.
i did find the source of the LEAK other than the shrader valve. look at teh rubber o ring on the high pressure line where it connects to the tx valve

 

[stamp11127]

Here is some interesting reading on o-ring materials:

https://www.compressorworks.com/Upload/Four Seasons/documents/Tech Tips/English/4S 376 O-RING COLOR CHANGES.PDF

I noticed that the o-ring is black in the picture. Probably safe to assume that is safe to use with r134a but you never know if it is the r12 version.

Usually add one oz for each component, most of the oil will be added to the compressor to start with. Just don't go over the total amount recommended.

 

[powerboatr]

that would put me near 11 oz for the lines, plus 1 for the condensor and how many for the pump?
there is no way i can remove the compressor to re oil it on the bench.
there is a service port on the low side line,
so i have to re oil it on the engine.
what the heck is the flushing solution made of, some sort of citric acid, smells like a orange.
i flushed the condensor and evap and only thing that ran out was flushing fluid, no chunks or other debris in the white cloth.

 

[stamp11127]

If the specs call for 11 oz total usually the compressor will hold 6 - 8oz of the 11 total.
None of the AC Flush I've used smelled of citrus. FJC flush is Polyol Ester.

 

[powerboatr]

stuff flat cleaned my floor real good where is dripped.
any way, i have to call freightliner in am to get the model of ac compressor, its just to darn tight to get my body up next to it to see a model number.

can i add the oil through the high side line at the pump?
i have to see if o rielles has some more of this sticky tape stuff to fill the hole around the lines going into the evap

 

[powerboatr]

looks like using the sanden workbook for my compressor and hoses, i come up with 14 ox total of oil for the system.

i just have to figure out how the heck i can remove the compressor and see if any oil is in it.
WOOOOOWW

 

[stamp11127]

You can bet there is oil inside if it wasn't making a racket or locked up. Post a pick of where it is in the engine bay. I used to work on school buses and a few were pushers. Two access doors and that was it. Almost like working in a very small closet.

If you are swapping out the compressor there is a process of adding oil on the bench and turning the shaft to lube the internals. MAKE SURE YOU DO THAT!

 

[powerboatr]

called acme this morning, the number confirmed they are no longer in operation, as the number now is a credit card place to save you money HAHAHAHAHAHA

anywho,
i will snap a pic of the compressor when i get back from picking up parts.
, should i be able to dump the additional oil in the suction line and let it flow back the nearly 40 feet?
hopefully get it all back to together today, then do the suction on Tuesday.
i was very surprised that the condenser was bone dry , as was the evap. and the two high pressure lines that led to the condensor from the evap.
sanden recommended a ratio of oil to be in the 3.3% to 8% range, that a big swing, so my brain is saying dump in 8 oz, let it sit, hand rotate the compressor and make sure its smooth, pressure test, and if it does not make bubbles, then vacum it down
on fence to rent a pump or just go buy one,

 

[stamp11127]

The oils main purpose is to lubricate the compressor. During operation it mixes with the refrigerant while circulating around the system and aiding somewhat in the transfer of heat in and out of the respective components. Put in what the comprssor will hold and then rotate the shaft. Some will come out once full. Add the remaining amount to the condensor and evap inlets. Should be about an oz each.

 

[powerboatr]

snapped a quick few