put the a/c back on my truck; do I need to do anything to it? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72supermike · 04-08-2011, 09:46 PM

I have been working on my truck and haven't run it in a year. I put the factory A/C compressor back on and have it all hooked up. Is it ok to run the truck with the a/c system dry? What needs to be done to charge the system? Thanks!

ETsC10 · 04-08-2011, 10:59 PM

I'm not much help on AC but I can offer a ttt

**thelonerife** · 04-08-2011, 11:08 PM

maybe leave the compressor unplugged till you have it charged. At least thats what Vintage air recommends.

70longbed · 04-08-2011, 11:18 PM

If the a/c clutch isn't engaged you wouldn't do any damage to the compressor. You should check the oil level in the compressor before installing it. Whoever does the re charge should put the system on vacuum for at least a half hour to remove any moisture that may be in the system and they can add oil and dye with the a/c machine before charging the system but it's impossible to tell how much oil is already in it. There usually is oil trapped elsewhere in the system but it needs the freon to circulate it.

72supermike · 04-08-2011, 11:40 PM

thanks for the info. I'll give it a go! looking forward to having this project on the road again!

04-08-2011, 09:46 PM	#1
72supermike Registered User Join Date: Nov 2009 Location: Harrison, Idaho Posts: 214	put the a/c back on my truck; do I need to do anything to it? I have been working on my truck and haven't run it in a year. I put the factory A/C compressor back on and have it all hooked up. Is it ok to run the truck with the a/c system dry? What needs to be done to charge the system? Thanks!

04-08-2011, 10:59 PM	#2
ETsC10 Hand Crafted C-10 Join Date: Aug 2006 Location: Burien, WA Posts: 5,180	Re: put the a/c back on my truck; do I need to do anything to it? I'm not much help on AC but I can offer a ttt

04-08-2011, 11:08 PM	#3
thelonerife Senior Member Join Date: Jul 2007 Location: Clarksville TN 37043 Posts: 8,702	Re: put the a/c back on my truck; do I need to do anything to it? maybe leave the compressor unplugged till you have it charged. At least thats what Vintage air recommends. __________________ Chuck 68swb Fleetside build ''Choncho'' http://67-72chevytrucks.com/vboard/s...d.php?t=374892 My trailer redo http://67-72chevytrucks.com/vboard/s...69#post5893869 Chuy my 59 bug http://67-72chevytrucks.com/vboard/s...d.php?t=653798 Putnam 87 GMC Shop truck http://67-72chevytrucks.com/vboard/s...d.php?t=707687

04-08-2011, 11:18 PM	#4
70longbed Registered User Join Date: Apr 2010 Location: Grand Rapids, MI Posts: 11	Re: put the a/c back on my truck; do I need to do anything to it? If the a/c clutch isn't engaged you wouldn't do any damage to the compressor. You should check the oil level in the compressor before installing it. Whoever does the re charge should put the system on vacuum for at least a half hour to remove any moisture that may be in the system and they can add oil and dye with the a/c machine before charging the system but it's impossible to tell how much oil is already in it. There usually is oil trapped elsewhere in the system but it needs the freon to circulate it. __________________ 1970 Chevy C20 350/TH350

04-08-2011, 11:40 PM	#5
72supermike Registered User Join Date: Nov 2009 Location: Harrison, Idaho Posts: 214	Re: put the a/c back on my truck; do I need to do anything to it? thanks for the info. I'll give it a go! looking forward to having this project on the road again!



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