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Join Date: Sep 2002
Posts: 3,580
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Question about my air compressor....
I bought this beast a few months ago and it works great. But when the pump is running, quite a bit of air is hissing out the little hole in the plastic elbox shown in the pictures. The elbow is connected to a plastic tube running back to the tank.
The tank charges up fine, but maybe that's just because it's got a big compressor. Anyone know what the function of the little elbow is, and whether it's supposed to be blowing air? Thanks! Colin  
Last edited by cowtown; 02-12-2007 at 02:19 PM.. |
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02-12-2007, 02:15 PM
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Main picture:
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02-12-2007, 02:19 PM
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Wow, sorry about the weird picture sizes. Hopefully they are still readable.
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993 |
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02-12-2007, 02:20 PM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
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You should not have air leaking out of anywhere. Have you contacted the maker or seller and asked about warrenty repair?
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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02-12-2007, 02:24 PM
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Hell Belcho
Join Date: Sep 2006
Location: Oz
Posts: 9,249
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relief valve?
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02-12-2007, 02:25 PM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
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Could be a relief valve but even so, it should not be leaking. I have a ball valve on my compressor between it and the garage system and it holds pressure to the pound for months on end, and no leakage either when running or sitting.
For a new system it should be fixed while still under warranty.
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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02-12-2007, 02:34 PM
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Sorry - I forgot to add this key piece of information...
 It only hisses out air while the motor is running. When the motor stops the tank is sealed tight and will hold a charge for days.
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02-12-2007, 02:35 PM
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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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I believe it may be the pressure relief valve to decompress the cylinder when it stops, so that when the compressor starts up, the cylinder is not under pressure. What it should do is not leak while running and you should have a pressure relief hiss for a second or two when it stops to depressurize the cylinder. Sounds like its defective as it should be closed when running and only open for a second or two on shut off. Try cleaning it or hitting it lightly with a small hammer to see if it seats.
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Hugh |
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02-12-2007, 04:48 PM
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