Electric Horn

[pyro13]

In view of the recen bad experiences with cars and lorries alike,

 

and a recent founding of a pair of air horns in my store.

 

i would like to DIY the horns..

so can anyone enlighten me??

 

like wat relay to use and wer the wiring goes to??

 

its the normal snail shaped horn

[Strong Eagle]

In view of the recen bad experiences with cars and lorries alike,

 

and a recent founding of a pair of air horns in my store.

 

i would like to DIY the horns..

so can anyone enlighten me??

 

like wat relay to use and wer the wiring goes to??

 

its the normal snail shaped horn

 

If it is a normal snail horn like in the picture below, it is not an air horn, otherwise you would need a compressor as well. I don't think air horns are legal in Singapore.

 

You can use a standard automotive relay to connect the new horns. See the picture below.

 

http://www.rattlebars.com/mtz/basicrelay.jpg

 

There will be two wires connected to your current horn. Connect one of the wires to terminal 86 in the picture. Connect the other wire to terminal 85.

 

Next, connect a line from your battery or fusible link to terminal 30/51. You should include an inline fuse for safety reasons.

 

Connect the positive side of your new horn to terminal 87. Connect the negative side to ground.

 

Install the relay with the terminals down so that water cannot seep into the relay and destroy it. Wrap it well with electrical tape.

 

Now you have a loud 'beep beep'.

 

You can see how it was done by the previous owner on my Valk. The original horn wires ended up pretty close to the relay so he mounted the relay where he did to reduce the hassle of moving wires.

 

Note that one relay can run two horns.

 

http://www.herbhost.com/miscimg/hornmount.jpg

[nebulaz]

sweet detailed instructions......cheers

[pyro13]

a million thanx eagl!.. will get it done..must get the relay..

 

so its a 5-legged relay...

 

thanx again!

[Aalex82]

a million thanx eagl!.. will get it done..must get the relay..

 

so its a 5-legged relay...

 

thanx again!

 

u need not to get the 5 legged relay for the installation of the horn..

juz 4 legged will do..

the 87a teminal is kinda useless in this type of installation..