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#16
06-08-2011, 04:17 PM
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If the charge hose is different than your setup, simply buy a dual size valve piercing style can tap. Worse comes to worse, and you dont want to go that route, you can charge through the high side, but cheezy solution. Buy the can tap with 2 size fittings. That way it will work with the HF gauges. Also, you still need the high side adapter if doing some domestic R12 systems...
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#17
06-08-2011, 04:38 PM
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Many people on Aircondition.com suggest the newer Side Tappers ...
but everyone has to be careful visualizing what you are getting from the can... you want vapor... so relative to the earth.... you need to take from HIGH .... if you stick liquid into the system near the compressor you break the valves...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#18
06-08-2011, 04:56 PM
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On the very old compressors, this was true. I've been doing it over 25 years. Never ruined a set of reed valves yet charging liquid. Chances are that if charging liquid does one in, it's on it's last legs anyway. But if you want to, just pierce the bottom of the can with a side tapper, and hold it upside down to charge gas.
Something like this...
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#19
06-08-2011, 04:58 PM
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I ruined two new compressors that way in one day... in the mid 1970's....
The parts house was really unhappy.... Liquid can be put in safely... but when dealing with the WIDE variety of experience on a forum... safer to suggest the slower vapor only method.... People should not be punished due to being slow or untrained...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#20
06-08-2011, 05:00 PM
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Yep, I believe it almost 40 years back... Be careful not to overcharge as well obviously. Depending on the refrigerant you use, that WILL lock it up QUICK.
__________________
1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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#21
06-08-2011, 05:01 PM
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We preach not overcharging around here....
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#22
06-08-2011, 05:05 PM
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Also, I re-read my original reply. I didnt mean to charge through the high side on the car obviously. But in a jam if the HF charge hose wont fit, you can vac and charge through the high side of the HF manifold, with the low side connected properly to the car. But better off getting the proper can tap to match the hose if you have time.
__________________
1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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#23
06-08-2011, 05:15 PM
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About that same time I did hook up a can to the high side....
was lucky I felt of it... it was getting HOT instead of chilling as it was supposed to... was lucky it did not explode in my face...as it was hanging from the underside of the raised hood... very serious .... makes my knees thinking about it ever since...
__________________
1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#24
06-08-2011, 05:16 PM
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Yes, very fortunate it was the first can in an empty system.
__________________
1987 300SDL #1, 1987 300SDL #2, 1980 240D, 1982 300SD, 1994 S350, 1990 350SDL, 1991 350SD, 1985 300D, 2005 E320CDI Gone, but not forgotten: 1981 300SD, 1982 300SD, 1987 300SDL, 1983 300TD, 1980 300CD, 1981 300SD #2, 1987 300D, 1987 300TDT, 1980 300D
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