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Is it possible?

 
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Oliver Lithgow



Joined: 05 Aug 2011
Posts: 14


Location: Workington

PostPosted: Wed Mar 21, 2012 3:57 pm    Post subject: Is it possible?  Reply with quote

I was given an air horn off my friend and i was woundering how do you connect it up because the battery is in the boot. Is it a hard job to do or not? Could i also have a step to step guide how to install it. Please
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Richspec



Joined: 27 Aug 2007
Posts: 1719


Location: In the garage, Penrith.

PostPosted: Wed Mar 21, 2012 6:39 pm    Post subject: Reply with quote

Yep it is, does it come with the compressor to make it work?

You'll need a relay some wire, nuts and bolts (depending on comrressor/horn mounting), electrical connectors.

First find and remove existing horn, remove it and take note of the wiring going to it, its probably purple.

Decide where you are going to mount your horn and compressor, the inner wing is the usual place, mount horn and compressor.

Mount relay to a suitable location nearby, run earth wire from relay (pin 85?) to a good ground, the compressor will have an earth most likely too, run this to the same place.

Run a wire from the original horn wire to the relay switching terminal (86?)

Run a wire from your fuse box (check your haynes manual as to which one you should use) to the relay (pin 30?) use red and a fairly meaty wire.

Run wire from relay pin 87 to compressor and thats the wiring done.

Points to note:

Its better to use a relay rather than just the horn wire as the compressor uses a lot of current.
Check the pin numbers I quote above on the relay wiring diagram.
Check the air horn works before you fit it, they can seize up and need a big garage compressor to free them up.
Make sure the horns point down so they dont get full of water.
Finding somewhere for horn and compressor is the hardest thing depending on the yr of the car and what else is in the engine bay.

Any question just ask :)

you can see my air horn and compressor in this pic.
[/img]
(edited to add - on the far inner wing..)


Last edited by Richspec on Wed Mar 21, 2012 10:41 pm; edited 1 time in total
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Orky



Joined: 18 Jan 2008
Posts: 326



PostPosted: Wed Mar 21, 2012 10:05 pm    Post subject: Reply with quote

lol!!!!


i had to take a second glance to spot which was the air horn
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sum dude



Joined: 06 Dec 2007
Posts: 451


Location: thornhill cumbria

PostPosted: Wed Mar 21, 2012 10:35 pm    Post subject: Reply with quote

i had a few air horns on diesel. keeped seizing up so i went back to a standard one in the end.

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