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Old 08-05-2018, 08:11 AM   #1 (permalink)
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Default *NEED* Info about Maserati Air Horns!

Does anybody know anything about these air horns? Yes I have just installed it on my MK2 Suzuki Swift, just for the fun of it...But the one I have is confusing the hell out if me. All I can find online is the vintage 1960's one which isn't the same as mine, so I'm guessing mine isn't vintage. Can't find any information about the one I have though.

All I want to know is what the 2 spade connectors are for on the top, and what the little oil "filler" cap is for. There are 4 spade connectors altogether (2 on top and 2 on the bottom) and the bottom ones power the main compressor for the air horns, but what are the top ones for? It sounds like the top ones power a different motor which doesn't do anything. Also I have just sprayed WD40 in the oil bit for now, just to keep it lubricated.
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Old 08-05-2018, 11:52 AM   #2 (permalink)
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I cannot say for certain, and the closest I've been to a Maserati is when I bought my Triumph Spitfire,
the seller showed me his wife's car, his was the one next to it, the Lamborghini.

I have an air horn in my 99 Tracker, it does not have a built-in compressor,
it needs an external air source so minus two terminals.
It has a solenoid with two terminals that screws into the horn to allow air to enter,
thus turning the horn on - the on-off switch.
Some horns just turn on the compressor for the on-off switch
while others have a reservoir and would need some type of a valve to operate.

Could the two terminal be the switch?


Best of luck.

Don



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1999 Chevy Tracker removable hardtop 1.6L 16 valve 5-speed 4WD 104K timing belt/wp aluminum radiator electric fan Bartact seat covers Vixen airhorn onboard compressor Dashcam rear locker winch
2002 Grand Vitara 2.5L 4WD 123K Valves lifters rings/bearings timing chain gears tensioners WP coils ECU
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Old 08-05-2018, 12:41 PM   #3 (permalink)
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Quote:
Originally Posted by Donewrken View Post
I cannot say for certain, and the closest I've been to a Maserati is when I bought my Triumph Spitfire,
the seller showed me his wife's car, his was the one next to it, the Lamborghini.

I have an air horn in my 99 Tracker, it does not have a built-in compressor,
it needs an external air source so minus two terminals.
It has a solenoid with two terminals that screws into the horn to allow air to enter,
thus turning the horn on - the on-off switch.
Some horns just turn on the compressor for the on-off switch
while others have a reservoir and would need some type of a valve to operate.

Could the two terminal be the switch?


Best of luck.

Don

<img src="https://www.suzuki-forums.com/images/smilies/happy.gif" border="0" alt="" title="" class="inlineimg" />

.
That's possible...I did read that somewhere else actually, but again, it works perfectly fine just with the 2 bottom terminals, and from what I can hear the 2 top terminals power a completely different motor which is located just underneath where the pipes connect, then the main air compressor part is underneath that. I didn't redo all the wiring, I just tapped in to my existing horn wires and ran them straight to the bottom terminals on the air horn, then I connected the bottom terminals to the top terminals (it works fine without doing this) so both the compressor and top motor turn on at the same time when you press the horn.

Still have no idea what the top motor does though, because it doesn't change the tune like some people said, and that made me think it was some sort of oil pump (the compressor gets very hot after a few seconds and there is an oil filler cap, so I thought it might be oil cooled), but some people have said that's very unlikely. Apparently the only purpose for the oil filler cap is to spray WD40 in there and keep the compressor lubricated; it has nothing to do with the top motor. There is literally 0 information about the air horn I have online which doesn't help.
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Old 08-05-2018, 01:03 PM   #4 (permalink)
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I noticed the ports in the one picture.
If the top motor also a compressor and does air come out of one or more ports?
If so, it could be used to blow another horn!!!
Dual horns are twice the fun!









Don



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I'm here in the USA.
1994 Geo Tracker 1.6L 8V TBI, 3-spd auto 4WD 152K timing belt/wp power windows Camo seat covers carpet Dashcam & backup cam
1999 Chevy Tracker removable hardtop 1.6L 16 valve 5-speed 4WD 104K timing belt/wp aluminum radiator electric fan Bartact seat covers Vixen airhorn onboard compressor Dashcam rear locker winch
2002 Grand Vitara 2.5L 4WD 123K Valves lifters rings/bearings timing chain gears tensioners WP coils ECU
1991 GMC K2500 4WD 454 Xcab
1997 Trans Am LT1 auto
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Old 08-05-2018, 02:13 PM   #5 (permalink)
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1: always use a relay to run those horn compressors, they draw a lot and will more than likely fry the horn wiring in the car.
2: use a light 5 weight oil or WD40 down the oil hole, the hile is to allow oil in to lubricate the rotary compressor blades

the 2 big spades on the bottom are usually the main power supply, altho I have seen them mirrored on the top. Check with a multimeter for continuity and try and work out what they are. your one looks like a triple tone unit, one horn per outlet tower and second set of spades control the tone switching


Shouldn't get hotter than touch hot (should be able to hold hand on it easily) with a 2-3 second blast, if it does, somethings wrong. These are short duration compressors, not designed for long periods of use. In saying that, i've had them too hot to touch at car shows.
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Old 08-05-2018, 03:51 PM   #6 (permalink)
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Quote:
Originally Posted by Donewrken View Post
I noticed the ports in the one picture.
If the top motor also a compressor and does air come out of one or more ports?
If so, it could be used to blow another horn!!!
Dual horns are twice the fun!









Don

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There are 3 horns all together...All powered by the bottom motor/compressor.
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Old 08-05-2018, 04:04 PM   #7 (permalink)
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Quote:
Originally Posted by 2013GV View Post
1: always use a relay to run those horn compressors, they draw a lot and will more than likely fry the horn wiring in the car.
2: use a light 5 weight oil or WD40 down the oil hole, the hile is to allow oil in to lubricate the rotary compressor blades

the 2 big spades on the bottom are usually the main power supply, altho I have seen them mirrored on the top. Check with a multimeter for continuity and try and work out what they are. your one looks like a triple tone unit, one horn per outlet tower and second set of spades control the tone switching


Shouldn't get hotter than touch hot (should be able to hold hand on it easily) with a 2-3 second blast, if it does, somethings wrong. These are short duration compressors, not designed for long periods of use. In saying that, i've had them too hot to touch at car shows.
I was going to completely re-wire it and have a separate switch for the air horn, but by time I made my own brackets, ect, I didn't have a lot of time to do the wiring (I was trying to get it all done in a couple of hours, while doing other things too). Plus I googled it and other people tapped straight in to their existing horn wires without any problems, so I went with that option. Not too bothered at the moment as the car is off the road so I have plenty of time to sort out the wiring. And I have already sprayed WD40 in the oil hole.

How would the tone switch work? How would I test to see if it is a tone switch? I have seen the vintage 1960 ones with a tone switch, but I couldn't find a wiring diagram or anything. Like I said, I can't find any information AT ALL about my horns. But you're correct about there being 1 horn per outlet (the horns are all different sizes).
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Old 08-06-2018, 01:33 AM   #8 (permalink)
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apply power to main compressor then apply power to top terminals, see what happens in different combinations
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Old 08-06-2018, 08:19 AM   #9 (permalink)
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Quote:
Originally Posted by 2013GV View Post
apply power to main compressor then apply power to top terminals, see what happens in different combinations
I have tried that...That's currently how I have it setup in the car. I have joint the top and bottom terminals with a piece of wire, then it connects to the existing horn wires. It doesn't make any difference to the air horns at all.
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