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post #1 of 4 Old 07-15-2010, 05:55 PM Thread Starter
richnev
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Onboard air help

I went to Harbor Frieght the other day and bought a 5 gallon 125psi rated air tank for pretty cheap mounted it in the back of the jeep and hooked up my little compressor to fill it up, well my onboard compressor says it is rated to 125 psi but it would not fill the tank up past 50 psi.

I went to a gas station and figured I would fill it up to 80+ there but the same thing happened it would not fill it up past 50 psi after I filled it up as full as I could get it at the station Ihooked my compressor back up to it and it would blow a fuse every time I turned it on. My question is my compressor is not rated to 125 psi? and also does anyone have any sort of idea what I could use that would shut my compressor off at a certain PSI in the tank and where would I pick up something like that?


05 Jeep Wrangler X .... RIP
07 Jeep Wrangler Unlimited X ...... let the build begin

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Quote:
Originally Posted by ge2 View Post
I just make a BOOP BEEP sound with my mouth (really loud) as I walk away from the jeep, and point the key at it.
Quote:
Originally Posted by her94yj View Post
lets put it a way a kids will relate......its like a hooker.......... SURE a 15 dollar handy from a detroit toothless 60 year old can get it done....... but NO where is it as nice as the $5000 an hour goddess from vegas or hollywood

....... dont be that fat guy on the beach in the speedo you dont want to be "that guy"
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post #2 of 4 Old 07-18-2010, 03:38 PM
CJ8Ted
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Many small compressers (30$ wallmart type) are only good for pumping up tires a few times a year at best. I'm not sure why they get a 125# rating, probably becouse of the hose they use. It doesnt surprise me to hear of blowinig a fuse when trying to start at a high preasure, its like trying to start your jeep from a dead stop, uphill in 5th gear. As for a preasure switch to cut it off at a certian PSI. You would need a preasure switch, safty blow off valve, selonoid with an amp rating above the amp peak draw of the compresser, an air chuck that will hold back the preasure (not free flow style like come w/ most small units). I'm not sure what your planning to do with the tank but the only thing it will do is help seat a bead or let you use a blow gun for a few seconds.

I burnt a $50 model up in about 8 trips wheelin, went to a Sun Quick Air 2 and wired it up to go off at about 110 lbs. Its not the fasted thing but its still going strong after about 6 years. My tank is a very small O2 bottle and just helps seat beads and collects air when moving from tire to tire.

Ted

1985 CJ8 on 33s W/ 4.56s
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post #3 of 4 Old 07-19-2010, 10:18 AM
ClimbStuff
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Quote:
Originally Posted by richnev View Post
I went to Harbor Frieght the other day and bought a 5 gallon 125psi rated air tank for pretty cheap mounted it in the back of the jeep and hooked up my little compressor to fill it up, well my onboard compressor says it is rated to 125 psi but it would not fill the tank up past 50 psi.

I went to a gas station and figured I would fill it up to 80+ there but the same thing happened it would not fill it up past 50 psi after I filled it up as full as I could get it at the station Ihooked my compressor back up to it and it would blow a fuse every time I turned it on. My question is my compressor is not rated to 125 psi? and also does anyone have any sort of idea what I could use that would shut my compressor off at a certain PSI in the tank and where would I pick up something like that?
Most pumps in a fuel stations are very low volume, and low pressure, to prevent people from severely overfilling tires. About 5 years ago, the only pumps I knew that were still high pressure on the east coast were at BP fuel stations, where I used to fill my 10Gal to 100psi just before going to autocross events. Out here in the mountains, I have no real need to go to a gas station for air since I've had my own compressor.
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post #4 of 4 Old 07-30-2010, 03:21 AM Thread Starter
richnev
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Thanks for the replies, I have been extremly busy the last few weeks and have not been able to get back online

05 Jeep Wrangler X .... RIP
07 Jeep Wrangler Unlimited X ...... let the build begin

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Quote:
Originally Posted by ge2 View Post
I just make a BOOP BEEP sound with my mouth (really loud) as I walk away from the jeep, and point the key at it.
Quote:
Originally Posted by her94yj View Post
lets put it a way a kids will relate......its like a hooker.......... SURE a 15 dollar handy from a detroit toothless 60 year old can get it done....... but NO where is it as nice as the $5000 an hour goddess from vegas or hollywood

....... dont be that fat guy on the beach in the speedo you dont want to be "that guy"
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