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Stan-lee
New User
Jan 2, 2019, 11:10 PM
Post #1 of 10
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AC suction hose split
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Has anyone spliced an ac line (hose) under pressure? Lost some 134a . Hose barb splice kit ?? Clamp off hose each side of split ??
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 2:28 AM
Post #2 of 10
(2456 views)
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Re: AC suction hose split
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? Not while under pressure at least - much of anything. For most that hose has to go, whole and new. Take a good look at how it attaches at each end depending on what this thing is those may break creating a domino of things to fix it.
There are hose "crimp sets" to make up hose. Know that 134a proper hose is "barrier" hose inside highly meant NOT to leak 134a.
Barbed hose fittings were used but unless you have a converted something from the 1960s forget that. You'll lose refrigerant any which way so need to charge it properly top, locked post can help also know to replace any suspect lost oils measure what you get out add at least that much of specified type,
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 3:49 AM
Post #3 of 10
(2453 views)
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Re: AC suction hose split
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Don't waste your time with those splice kits. They are unreliable and extremely difficult to use.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Stan-lee
New User
Jan 3, 2019, 9:43 AM
Post #4 of 10
(2440 views)
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Re: AC suction hose split
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The leak was due to a wear spot on the hose which is still in good condition. Lost a small amount of freon. Taped, rubber over split w/ clamps for now. Have no time 4 proper repair planting crops. Looking 4 easy quick
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 10:03 AM
Post #5 of 10
(2438 views)
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Re: AC suction hose split
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You about can't know how much "refrigerant" you lost without recovering it with a machine that weighs it.
If capacity is high listed for this unknown vehicle (PLEASE SAY WHAT THIS IS) you could I'd say fake or risk it. What's VERY hard to find is clamps that will grab a full circle those I call worm gear one don't apply even pressure.
Is system working now knowing it leaks? If not you've lost enough already if compressor still kicks on to wreck the system - slow leaks can do that in an otherwise good system.
Over or undercharged is just NO GOOD you need correct amount to the ounce or close if this is newer almost anything and 134a originally.
If you insist and willing for a failure try it but right away after airing it out and operating leak check your connection. Know that it may hold vacuum is just holding OUT 14.7 PSI or so and working holding IN up over 300PSI possible still can't leak at that. It's tough, engine heat with engine off on a hot day over hot surface you only get static pressure and if this is LOW side operating it's not all the high a pressure it could see.
How much is a new hose? This stuff happens if lucky and things just come apart to do it do that. Drain hose to measure oil inside and a guess of what leaked out thru that leak I go be mess evidence it will leave somewhere almost always,
T
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 4:57 PM
Post #7 of 10
(2427 views)
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Re: AC suction hose split
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It's a whacked thought but true. Expressed without saying a 100% vacuum most of the populated world pressure is about 14.7 PSI. Meaning a tire with air but no pressure reading at sea level placed into a vacuum would read 14.7 PSI. Thinking in "Inches of Mercury" (the liquid and heavy metal) it falls so many inches we call Hg's above that is a vacuum by basic thought it held tight like in a glass tube once used to forecast weather!
OMG, the bull you learn taking Physics and actually paying attention!
Tom
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 5:02 PM
Post #8 of 10
(2423 views)
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Re: AC suction hose split
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I learned something today
14.70 pounds per square inch
Standard sea-level pressure, by definition, equals 760 mm (29.92 inches) of mercury, 14.70 pounds per square inch, 1,013.25 × 103 dynes per square centimetre, 1,013.25 millibars, one standard atmosphere, or 101.325 kilopascals.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 3, 2019, 5:10 PM
Post #9 of 10
(2419 views)
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Re: AC suction hose split
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Dang site is playing it's "Gateway Error" trick is a pest. Yes metrically measured or lots of #s after a decimal point we live in pressure of the weight of air! It's whacked to think we are in a test environment of 14.7 +/- PSI does in fact go down at altitude till there's not enough air to breath we see that.
Trivia I think true: Aircraft with pressurized cabins are only pressured up to the same as being at 10,000 ft. of elevation takes some stress off the airplane cabin to make it like reality level.
I'm tired and it's late for me right now to off the cuff recall all this minutia of college daze no typo there!
Tom
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Stan-lee
New User
Jan 4, 2019, 10:01 PM
Post #10 of 10
(2378 views)
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Re: AC suction hose split
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Thanks 4 the advice & happy new year !!
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