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3/20/10 10:44am - Original Message: 'Impossible to fill A/C'
Adam Wartell Lifetime Member
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Eagleville, PA - USA

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A year or two ago, I had some A/C work done at a local shop that included replacing the A/C lines.
Last summer, it wasn't cooling, so I went to add some coolant from a can.
I could not get the hose connected to the fill port because it is right up against the support bracket and bolt for the compressor.  

Did the shop put the wrong hose on? Or is something else screwy here?




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3/20/10 11:23am - Reply: 'Impossible to fill A/C'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

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#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

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That's pretty f-ed up right there....
Is there another fitting in the system? Normally, the low pressure(suction) fitting is right on the accumulator/dryer(big, round, aluminuminum can).
IS the fitting there at the compressor screwed in, or welded? If it is screwed in, they should be able to take the hose off, and install a 90* fitting there.
The real question is....How the heck did they ever get refrigerant in it to start with?
There's got to be another suction line fitting on there somewhere...there's just gotta be.


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3/20/10 11:34am - Reply: 'Impossible to fill A/C'
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Mounds View, MN - USA

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70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe

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The port sticks out a lot farther than the original GM one, so that is probably your problem.  I would tighten the bottom bolts of the compressor mount as tight as you safely can, then remove the interfering bolt long enough to recharge.  If necessary, you could even wedge a piece of wood to maintain enough tension on the belt for a few minutes.

Larry


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3/20/10 3:13pm - Reply: 'Impossible to fill A/C'
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BINGHAMTON, NY - USA

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Sure looks like "BUBBA" has been workin thereLOLLOLLOLLOLLOL

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3/20/10 3:40pm - Reply: 'Impossible to fill A/C'
dskopp
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Oak Creek, WI - USA

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1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

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Thats not where the factory put that fitting!!!
Dan


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3/21/10 1:42pm - Reply: 'Impossible to fill A/C'
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HOWELL, NJ - USA

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I would swap over to a 90 degree fitting, bolt everything back together, purge the system and recharge it. 

Unless.......you do have another fitting further back, but why would they go to the trouble of putting another fitting in there was another...


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3/21/10 8:23pm - Reply: 'Impossible to fill A/C'
Adam Wartell Lifetime Member
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Eagleville, PA - USA

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Used to own a 1979 Corvette now owned by JB79

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I ordered this guy yesterday:


I just hope there is enough clearance once that is in to put that bolt back.



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3/26/10 1:29pm - Reply: 'Impossible to fill A/C'
81zoomzoom
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Lusby, MD - USA

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1981 WHITE ALT WITH ALL THE BELLS

Joined: 10/18/2003
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That fitting is an add on thats why it not working. they use it to put 134a in a r12 system. How did they fill it?? Alot of ac shops have ac cart they take the right amount of refrigerant in a cylinder heat it up. Your system already has a vacuum in it from pumping out all the air.So with your engine off they can open any port high or low side and all the refrigerant goes right in. Hope this helps SEE YA CHARLIE

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