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Author Topic: horn air compressor  (Read 1171 times)
uemjg
jerry
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« on: October 08, 2012, 12:52:38 PM »

I'm trying to power my 12 volt air horn and can't find a 12 volt spot to connect.  This is a 75 MCI-8.

Or am i better off getting a 24 volt air compressor?

Suggestions?
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PCC
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« Reply #1 on: October 08, 2012, 12:59:49 PM »

If you have 2 - 8D batteries, or other combination of 12 volt batteries to make 24 v, take a line from the connecting wire that goes between the battery/ies.

The connecting wire will be the one that goes from the positive of the battery/ies whose negative connects to the frame, to the negative of the other battery/ies. That point will give you 12 Volts positive to your compressor.

The negative wire from your compressor will then connect to the frame.
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luvrbus
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« Reply #2 on: October 08, 2012, 01:01:54 PM »

There is a 12 volt connection at rear panel I don't know about the front maybe the MCI guys know for sure but I think it is 55 or 58

good luck
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thomasinnv
Derrick Thomas
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« Reply #3 on: October 08, 2012, 10:57:24 PM »

The mc8 had a 12 volt option which included a 12 volt lug at the front panel, AC panel, and rear panel. Stud 55 in the front, stud 6 in the AC panel and stud 41 in the rear. All on circuit #23.

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Some are called, some are sent, some just got up and went.

1977 MCI MC8

1998 MCI 102-DL3
Series 60 11.1/Alison B500
95% converted (they're never really done, are they?)
TomC
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« Reply #4 on: October 08, 2012, 11:11:39 PM »

It sounds to me like you're trying to use an air horn with its' own air compressor.  Why do that when your bus has its' own air supply.  Just buy either a 12v or 24v air solenoid and hook into the buses air system.  Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
Oonrahnjay
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« Reply #5 on: October 09, 2012, 07:53:20 AM »

It sounds to me like you're trying to use an air horn with its' own air compressor.  Why do that when your bus has its' own air supply.  Just buy either a 12v or 24v air solenoid and hook into the buses air system.  Good Luck, TomC

     That's what I was thinkin (and what I'm doin ...)
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Bruce H; Wallace (near Wilmington) NC
1976 Daimler (British) Double-Decker Bus; 34' long
6-cyl, 4-stroke, Leyland O-680 engine

(New Email -- brucebearnc@ (theGoogle gmail place) .com)
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