PVC Train Horn build - Page 2 - JeepForum.com

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post #16 of 45 Old 02-13-2012, 05:21 PM
TKFireman
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Thanks for the write up. That's pretty cool, may have to make it a future project.


"If your gonna be dumb, you gotta be tough"
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post #17 of 45 Old 02-14-2012, 08:12 AM Thread Starter
jaxfljeep
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Like I said earlier, when I first built them, I mounted them on a board, with the manifold. I wanted to see what they sounded like before installing them.
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post #18 of 45 Old 02-14-2012, 08:17 AM Thread Starter
jaxfljeep
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Here is another video of the first test on the horns mounted on the board. The video is hosted on PhotoBucket.

I apologize in advance for my appearance and the lousy cell phone video quality.
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post #19 of 45 Old 02-14-2012, 08:24 AM
jakeryii
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nice i think i have all the mats sitting around except the funnels im gonna have to try this

94 ZJ 4.0, np 249 on 31x10.50s no lift
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post #20 of 45 Old 02-14-2012, 10:50 AM
GlennLever
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Quote:
Originally Posted by jaxfljeep View Post
Here is another video of the first test on the horns mounted on the board. The video is hosted on PhotoBucket.

I apologize in advance for my appearance and the lousy cell phone video quality.
They sound really good!

Glenn R. Lever
Rochester, New York 14617-2012
My Web Site http://www.lever-family-racing.com

My restoration thread here on the Jeep forum
http://www.jeepforum.com/forum/f8/cj...build-1269301/
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post #21 of 45 Old 02-14-2012, 01:58 PM
jakeryii
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hey what does the back side of it look like now that its done? im kinda confused and i think i spent an extra 6 bucks at lowes haha

94 ZJ 4.0, np 249 on 31x10.50s no lift
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post #22 of 45 Old 02-14-2012, 05:02 PM
skizriz
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I like it
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post #23 of 45 Old 02-14-2012, 07:14 PM
Guy Smilie
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One thing I notice in the second video is the southern accent is gone and the camera man seems to jump when the horns go off! Good Job!
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post #24 of 45 Old 02-14-2012, 09:16 PM
dslywalker
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PVC wasn't made for air pressure.It'll take it for awhile but as temp under the hood increases the PVC handles less pressure.Just beware of it and make sure your okay with it.I've seen PVC pipe explode under pressure expecially if it gets hit with something.I'm talking around the same pressure your running.
Google using PVC for air lines.
The horn sure sounds nice,If you could find some copper pipe scraps from a plumbing contractor or scrape yard,then that would be a solid horn.Good job on your horn
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post #25 of 45 Old 02-14-2012, 10:03 PM
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That's awesome

ECV 1864
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post #26 of 45 Old 02-15-2012, 10:27 AM Thread Starter
jaxfljeep
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Even when finished, my horns look like the last picture in post #2, where you can see the blue diaphram.

As for pressure on the PVC, there really is none. The pressure from the tank is held back by the valve. When pressure is released the air goes through the manifold, and through the brass nipple, then the diaphram releases with vibration and the air/sound waves goes up the center 1" pipe. I understand your concern over the heat and constant pressure on the PVC, but there is none. I am more concerned about the diaphrams holding up over time, but that is why I made the back 4" retaining ring removable so the diaphram can be replaced.

Last edited by jaxfljeep; 02-15-2012 at 10:29 AM. Reason: speelling
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post #27 of 45 Old 02-15-2012, 10:30 AM Thread Starter
jaxfljeep
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Quote:
Originally Posted by CJ5ERNIE View Post
One thing I notice in the second video is the southern accent is gone and the camera man seems to jump when the horns go off! Good Job!
The camera person for the second video was my next to youngest daughter. I noticed the jump as well.
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post #28 of 45 Old 02-15-2012, 12:07 PM
jakeryii
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hey jaxfljeep do u have a shot of the backside of the finished horn?

94 ZJ 4.0, np 249 on 31x10.50s no lift
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post #29 of 45 Old 02-15-2012, 12:34 PM Thread Starter
jaxfljeep
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Originally Posted by jakeryii View Post
hey jaxfljeep do u have a shot of the backside of the finished horn?
Look at the last picture on post #2 in this thread. That is what my finished horns look like, of course, the air hose is not hooked up and secured with a clamp.

If you need a picture of the backside in the Jeep, I will have to take that picture later.
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post #30 of 45 Old 02-15-2012, 12:59 PM
WoodyHD
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Awesome write up. I've been wanting to do this myself. Of course I'd love to put a big ol' lesslie tyfon A-200 on my jeep, but the pcv setup is so much more economical. Now all you have to do is get rid of that ball valve and wire a solenoid in there for push button response. I'm sure I'll be referencing this later to build my own.
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