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02-23-2007, 06:46 PM
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#1
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Senior Member
Join Date: Nov 2006
Location: Auburndale, FL
Posts: 2,391
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A/C charging
I'm sitting here looking at the south end of my A/C compressor trying to determine which is the high pressure side and which is the side I actually charge. It's a factory unit on a 72 BB. Can anyone offer an easy answer?
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02-23-2007, 07:19 PM
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#2
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irfgt
Join Date: Jan 2007
Location: Port St.John, Florida
Posts: 16
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The larger hose is the low pressure side and the one you use to add Freon.
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02-23-2007, 08:02 PM
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#3
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Senior Member
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Location: Auburndale, FL
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Awesome
Now that makes life so much easier.
Correct me if I'm wrong. Start the motor. Turn the A/C on high and charge away, keeping the can up right of course.
Ken
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Last edited by Kap142; 02-28-2007 at 07:48 AM.
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02-23-2007, 11:00 PM
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#4
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Member
Join Date: Jan 2007
Location: Punta Gorda, Florida
Posts: 22
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You found Freon??
Cool! (sorry, couldn't resist)
AD
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02-24-2007, 05:36 AM
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#5
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Senior Member
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Location: Auburndale, FL
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well kinda
It's a product called Freeze 12
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02-24-2007, 07:03 AM
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#6
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Member
Join Date: May 2006
Location: Safety Harbor
Posts: 682
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Quote:
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Originally Posted by Kap142
It's a product called Freeze 12
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I have not heard of this freon. Is it compatible with R-12?
You should really have some gauges on the system or be real careful not to overcharge. The high side(condenser) runs under alot of pressure. With the engine running have the RPM's at about 10 to 12 and " IF " you had a guage on the low side it should read at about 35 lbs. It would be about fully charged at this pressure (low side is large line going to evaporater)..The high side will run over 200 lbs.so that is the one you don't want to blow.  ...Also some of the old cars have a sight gauge. I am not familiar with your vette. You can charge it until the bubbles run clear.....or no foaming
and this would be a full charge.......
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Democracy... Is two wolves and a lamb voting on what to have for lunch.
Liberty... Is a well-armed lamb contesting the vote."
Last edited by zzzona; 02-24-2007 at 09:15 AM.
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02-24-2007, 08:38 AM
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#7
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Senior Member
Join Date: Nov 2006
Location: Auburndale, FL
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Only a little confussion
Confirming the low side is the line running from the compressor to the evaporator (with the sight gauge)which then runs to the condensor?
My large line is foam wrapped and seems to head into the cab of the vehicle.
Can't afford to make any mistakes on this, would rather ask twice.
Ken
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Last edited by Kap142; 02-24-2007 at 08:41 AM.
Reason: added info
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02-24-2007, 09:04 AM
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#8
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Member
Join Date: May 2006
Location: Safety Harbor
Posts: 682
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Sounds like you got it right............The low side fitting should be close to the evap. near or on the accumulator.( silver cylinder,or can)...........
__________________
Democracy... Is two wolves and a lamb voting on what to have for lunch.
Liberty... Is a well-armed lamb contesting the vote."
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02-24-2007, 09:14 AM
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#9
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Senior Member
Join Date: Nov 2006
Location: Auburndale, FL
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and away we go.
Thanks just wanted to be as sure as possible
Ken
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Quietly, quietly, quietly making noise.
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02-24-2007, 07:16 PM
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#10
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Member
Join Date: Jan 2007
Location: Punta Gorda, Florida
Posts: 22
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Quote:
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Originally Posted by Kap142
It's a product called Freeze 12
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Hey, thanks.
I've got one car left that still uses Freon and it was giving me fits trying to find a decent replacement for Freon and make the switch to R134.
AD
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