DIY: On Board Air (Engine Bay Mounted) - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 11 Old 07-21-2010, 02:13 PM Thread Starter
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DIY: On Board Air (Engine Bay Mounted)

I know this isn't anything drastically new, but I did make my own mount for the compressor and the design is below incase you want to try your hand at some easy fabrication.........

COMPRESSOR CHOSEN:
=SuperFlow MV50 Air Compressor, ~$60
It gets good reviews, aired up from 15lbs-43lbs stock 31" in 4:15min. The connector is standard quick disconnect(but the hose that comes with it is screwy at the end so tossed it)....here it is:



MOUNT PARTS:
=4" wide - 1/8" thick flat steel x about 20" (runs about $5 at a metal recycling/wholesaler I have down the street)
=black paint
=drill bits (up to 3/8" for metal)
=welder (flux core 110v works fine)
=angle grinder with cut-off wheel
=black marker
=tape measurer
=straight edge
=something you can use to find an angle
=5/16"x1" bolts (nuts and lock washers too) for mounting compressor

DESIGNED first with cardboard:

* note: "3" meant it was my 3rd and final attempt *

Trace the cardboard design onto your metal:


Ends up with these measurements:


Test Fit Things before welding:


When I had the Angle I wanted for the plate the Compressor mounts to, I used an "angle-finder-keeper-thingy" that I thought I'd never have any use for but still had in the 'ol work bench drawer. Then I moved things to the bench to spot weld:


Once I liked the angle I finished the weld. Then I marked the holes for my compressor and drilled them out to 5/16":


One more Test Fit...almost there:


I WANT TO PAINT IT BLACK............


FINISHED UP:


I didn't take a picture of the wiring. I just ran the wires it came with to the battery hook ups (I cut off the cheap alligator clips it came with). It has an in-line 30 Amp fuse. The switch on the compressor works good enough for me so I'll keep it running off that. The compressor pressure guage seems to be about 5 lbs off....so I just compensate when looking at it. Wrapped the wiring in plastic loom. Wire tied to stock wiring, everything works great and looks like it belongs! Total cost.....$60 for the compressor, $5 for the metal, everything else i already had!



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Last edited by IndianaJeep; 07-22-2010 at 08:14 AM.
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post #2 of 11 Old 07-21-2010, 02:53 PM
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Looks pretty good.

Not to shabby for a low buck alternative.

Sure my rig has seen the trail, but I wheel it like a soccer mom looking for a parking spot at Nordstroms.
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post #3 of 11 Old 09-27-2010, 09:00 PM
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Nice job, thanks for sharing.

I have the same unit and this looks like a good way to mount it.

Thanks

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post #4 of 11 Old 09-28-2010, 04:39 AM
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Nice low buck solution.

How do you think the pump will hold up with all of the heat under the hood?


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, ProComp 7069 17x9, Cooper STT Pro 37's, Warn M8000, ACE ProSeries Bumpers, RROR Skids, Poly Tie Rod and Drag Link, Ten Factory Chromoly Rear Axles
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post #5 of 11 Old 09-28-2010, 04:50 AM
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I have this compressor so I need to make a mount now! Thanks for the write-up and specifics on the mount.
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post #6 of 11 Old 10-01-2010, 09:55 PM
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Quote:
Originally Posted by BigMike View Post
Nice low buck solution.

How do you think the pump will hold up with all of the heat under the hood?
I use this same pump, and it is pretty decent.

i too am curious about the under hood heat heat. I don't think this pump is made to stand up to it, so i am looking to see how it does. I guess for $60 you can replace them from time to time.

Dan

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post #7 of 11 Old 10-02-2010, 09:38 PM
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Awesome job. Looks great! Does Autozone or some similar place carry these?

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post #8 of 11 Old 10-07-2010, 07:26 AM
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I have the same compressor. It died after airing up 2 of my 4 tires on the last trail ride. Just got too hot and seized up. That's the problem with these oiless compressors. So I took it back with my receipt and got a brand new one as an exchange. No cost to me! Now I"m only going to air up one tire and let it cool down for about 15 min and then do it again. I may mount it like this as this is a nice mount and a great write up!

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post #9 of 11 Old 10-13-2010, 10:07 AM
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Quote:
Originally Posted by MichaelMaxim View Post
I have the same compressor. It died after airing up 2 of my 4 tires on the last trail ride. Just got too hot and seized up. That's the problem with these oiless compressors. So I took it back with my receipt and got a brand new one as an exchange. No cost to me! Now I"m only going to air up one tire and let it cool down for about 15 min and then do it again. I may mount it like this as this is a nice mount and a great write up!
I aired up 3 Jeeps last weekend with this. And mine is about 2 years old now. Only pausing between Jeeps. Also curious about the heat under the hood.

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post #10 of 11 Old 10-13-2010, 02:09 PM Thread Starter
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Quote:
Originally Posted by Victim Of Pain View Post
I aired up 3 Jeeps last weekend with this. And mine is about 2 years old now. Only pausing between Jeeps. Also curious about the heat under the hood.
I haven't had any issues of it not working and no burned up wires so I'm not too worried about heat issues from engine.



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post #11 of 11 Old 10-27-2010, 06:06 AM
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Have you had rubbing issues with the thick AC line? I have a similar bracket from One Off Fab and a MV-50 waiting to go on. I'v got about 1-2mm of clearance between the AC hose and the compressor and I was wondering if I should rig up a sling to pull it away a bit.

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