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-   -   ac charging w126 1981 300sd (http://www.peachparts.com/shopforum/diesel-discussion/321995-ac-charging-w126-1981-300sd.html)

ibenz 07-25-2012 03:48 PM
ac charging w126 1981 300sd
 
Im using 134a tonight to charge my system... .i read that it used 80% of the capacity that r12 uses... my sticker is no longer readable... What is the correct amount of lbs to put into my system and what is the correct amount of pg 150 oil to use...


I did a complete flush with a citrus smelling ac flush... I will spread the oil out to the condenser compressor and drier.... This is my first attempt on this system i have no clue if it leaks or not but the drier and compressor are new... any advice would be appreciated... I cleaned the evaporator with cleaner and a snaked brake line to reach all the sides... i shot the cleaner through the brake line and onto the evaporator... squeaky clean...

TX76513 07-25-2012 04:38 PM
I knew it was here somewhere.
http://www.peachparts.com/shopforum/diesel-discussion/254803-ac-feon-capacity.html

Here is the oil Chart
OIL CHART

ibenz 07-25-2012 06:01 PM
thanks for that i was looking all over for it... new question though... my new compressor says it was shipped without oil but when i removed the plate for install my hosing bracket... oil poured out of the holes....

vstech 07-25-2012 06:12 PM
perhaps you got a compressor someone returned to the store. I'd be concerned if it was full of oil...

ibenz 07-26-2012 12:19 AM
Quote:
Originally Posted by vstech (Post 2979914)
perhaps you got a compressor someone returned to the store. I'd be concerned if it was full of oil...
good point i will call them.. its a 4 seasons compressor

Air&Road 07-26-2012 07:52 AM
Quote:
Originally Posted by ibenz (Post 2979817)
Im using 134a tonight to charge my system... .i read that it used 80% of the capacity that r12 uses... my sticker is no longer readable... What is the correct amount of lbs to put into my system and what is the correct amount of pg 150 oil to use...


I did a complete flush with a citrus smelling ac flush... I will spread the oil out to the condenser compressor and drier.... This is my first attempt on this system i have no clue if it leaks or not but the drier and compressor are new... any advice would be appreciated... I cleaned the evaporator with cleaner and a snaked brake line to reach all the sides... i shot the cleaner through the brake line and onto the evaporator... squeaky clean...

Since you've already flushed the system, this would be the PERFECT time to put it back with R12. It would cost VERY little more than 134 in today's market and make it cool better and last longer.

ibenz 07-27-2012 12:00 AM
Quote:
Originally Posted by Air&Road (Post 2980114)
Since you've already flushed the system, this would be the PERFECT time to put it back with R12. It would cost VERY little more than 134 in today's market and make it cool better and last longer.
yeah your right on that one... i think i may actually switch back to r12... i am nitrogen testing first to make sure i dont blow my money... i got set back from the freon temp sensor breaking off inside the old drier when removing


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