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Old 09-05-2018, 06:24 PM   #1
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Frame mounted Air Comp

I'm finally replacing the $89 air compressor I mounted on the frame 12 years ago (pic). It was adequate for re inflating the 285's (yes... quite slow) but won't budge the 315's. I bought the Extreme Outback Extremeaire Endura to replace it. 100% duty cycle and submersible (or so they say). I have a splash shield in place now that has worked very well for the old comp that I will keep in place for the new one.

My question - I want to run a line to the back bumper for a connect for my coil hose. What hose has anyone used between comp and connector. I have read guys will use steel braid at the output to minimize the heat transfer from comp to plastic/rubber hose.

Any thoughts/suggestions appreciated - Joe
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Old 09-05-2018, 07:41 PM   #2
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At my place of work we use continental rubber (air) black hose and never had a problem.

I don't see a need to over think this.... K.I.S.S.
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Old 09-05-2018, 09:56 PM   #3
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You can get a good idea of what is available for hoses and fittings from the Viair website.viaircorp.com.
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Old 09-06-2018, 10:08 AM   #4
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I have a ton of experience with air compressors (air ride on mini trucks) and never had any luck with regular air line exiting a compressor. Anything with a 100% duty cycle will obviously run hot and needs the support of a steel braided or vented output line. I'm currently running a Viair 444C unit on my van as a backup to my primary CO2 and it works fine (albeit painfully slow compared to CO2 or my mini truck's belt driven unit). I relocated the air inlet to the engine compartment above any potential water line so it could be submerged and survive.

I would also recommend a deflector or shroud to go around the head/heat sink area of the compressor as it can get packed with mud in that location (edit, I see you have this...). When packed, the head no longer has proper thermal dissipation and will overheat the cylinder and fail the piston ring/seal. I found out the hard way on a very expensive and beautiful AZ compressor. This is on my to-do list for the unit shown below; I rarely use it for more than the locker these days.

Scott
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Old 09-06-2018, 10:12 AM   #5
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Iíve never had a problem with the hard plastic black stuff that comes with most compressors. Any big truck ship will have it. It is run all over semi trucks.
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Old 09-18-2018, 05:37 PM   #6
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Think I came up with a pretty clean way to mount the AC switch and outlet. My 25' coil hose reaches all tires.
Thanks for the replies. Joe
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Old 09-18-2018, 06:16 PM   #7
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I'm curious, why no tank?

I have a 4-gallon tank in there so the air flow is highest (when I hear the compressor cut off at max pressure) so I don't have to crouch down there at the tire so long. I have a 3-foot line (you can see it looped up) to let the air cool coming out of the compressor.

Or do you use locking clip-on chucks?



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Old 09-18-2018, 07:00 PM   #8
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I thought about a tank - that's a pretty cool setup - but really don't need it for what I'm doing. I do use a locking chuck - makes it much easier. Joe
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