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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: brimac50 on August 10, 2013, 12:07:46 am

Title: "New"AC, .... total amount of refrigerant oil for system?
Post by: brimac50 on August 10, 2013, 12:07:46 am
I have a 1980 3/4T.  I've replaced every component, ...   compressor (Sanden 5D5H14) , evaporator, condenser, accumulator,  and all new hoses. I have a GM Factory Service Manual,  but it does not state the the total amount of oil, originally in the system, ..from the factory.  It shows how much to add for each specific component replaced, but no total amount.  There's no ac sticker on the truck, for information.  I'm going to drain the new compressor of it's PAG oil, and measure that amount, since I have an ample amount of R-12.  I'll put  that amount of mineral oil, back into the compressor. From there, I'll need to know the "total amount of oil , that's suppose to be in a "never run"" system, to determine how many additional ounces to put in.  I've been all over the net, but have not yet found a definite answer. Anyone know the answer?  Thanks
Title: Re: "New"AC, .... total amount of refrigerant oil for system?
Post by: Irish_Alley on August 10, 2013, 12:13:49 am
someone just did this on another post, so they should chime in sooner or later but ill try to find it for you
Title: Re: "New"AC, .... total amount of refrigerant oil for system?
Post by: Irish_Alley on August 10, 2013, 12:45:23 am
Here (http://forum.73-87chevytrucks.com/smforum/index.php/topic,25585.msg213313.html#msg213313)

Here (http://forum.73-87chevytrucks.com/smforum/index.php/topic,26286.msg219474.html#msg219474)

Here for oil in the ac (http://forum.73-87chevytrucks.com/smforum/index.php/topic,26200.msg217990.html#msg217990)

Here 134a (http://forum.73-87chevytrucks.com/smforum/index.php/topic,24125.msg201915.html#msg201915)
Title: Re: "New"AC, .... total amount of refrigerant oil for system?
Post by: brimac50 on August 10, 2013, 11:18:09 am
Irish_Alley, ..... Thanks for digging up the info. I can now proceed.  Currently, it is  stink'in hot in north Texas!
Title: Re: Re: "New"AC, .... total amount of refrigerant oil for system?
Post by: 454Man on August 10, 2013, 12:27:34 pm
Quote from: brimac50 on August 10, 2013, 11:18:09 am
Irish_Alley, ..... Thanks for digging up the info. I can now proceed.  Currently, it is  stink'in hot in north Texas!
X2 it is hot in north Texas. I just got my AC back inline.
Title: Re: "New"AC, .... total amount of refrigerant oil for system?
Post by: Irish_Alley on August 10, 2013, 10:47:07 pm
no problem at all. good luck with it