New compressor & AC system questions - Page 2 - JeepForum.com

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post #16 of 18 Old 06-16-2013, 10:50 AM Thread Starter
Uniblurb
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Don't know why the head pressure wouldn't be closer to 250-300psi, rather than 200psi, and hopefully it will somehow equal out. The spec for "Refrigerant Charge Capacity" for a completely empty system on my 96 4.0 is listed as 1.75 lbs rather than in ounces. Hope I did the conversion right by multiplying 1.75lbs x 16oz/lb = 28 liquid ounces. Added about 28-30oz to the system but may have left a couple ounces in the hoses. Going to recheck the whole system after driving a while.

Interesting about hosing the condenser down while refilling and had forgotten about that. One thing which worried me is when I shut the AC off then engine down I could hear a hissing coming somewhere near the lines/connections on the condenser. But I couldn't find any leaks and hope it was just pressure going though the lines, or maybe the orifice located there, because the condenser was so hot.

I'll admit I get confused on the way the manifold gauges work and figured later opening both H/L valves showing a pressure of 120psi on both sides told me nothing. I did just charge through the low pressure side and finally disconnected the the high side while stopping the 2nd can charge even though I had the high side valve off.

On the loaner manifold gauges I used to borrow from the local auto parts store there were no directions/user manual with them so I searched it out, printed it, and returned it with the gauges. Wish I would have saved a copy since my "Actron CP7806 Air Conditioning Manifold Gauge Set" came with no user manual and none available through Actron as can be seen below.

http://www.actron.com/product_detail.php?pid=16360

Thanks for the input a70eliminator and you've offered some real good advice a couple times in this thread!


96 4.0 ZJ Laredo, 2004 4.7L WJ Limited, 93 4.0 XJ (spare), 96 4.0 XJ (son's)


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post #17 of 18 Old 06-16-2013, 11:59 AM
coralman
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Whats the air temp coming out of the vents? Is the suction line sweating or cool to the touch back to the comp? You don't want it icy cold all the way back. That would mean you could have liquid back to the manifold and you don't want to hammer the comp. Just trying to help.

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Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
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post #18 of 18 Old 06-16-2013, 11:23 PM Thread Starter
Uniblurb
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Wish I would have had a vent thermometer coralman and never checked the temp coming out of the vents. I don't think the lines are icy cold clear back to the compressor and finally drove it today with the AC on some. I'll double check it and thanks for the input.

96 4.0 ZJ Laredo, 2004 4.7L WJ Limited, 93 4.0 XJ (spare), 96 4.0 XJ (son's)


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