 Ignition switch failures., Ready to wire a switch and button instead. |
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| FourBlades |
 Mar 30 2015, 08:28 PM
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From Wreck to Rockin  Group: Members Posts: 2,056 Joined: 3-December 07 From: Brevard, FL Member No.: 8,414 Region Association: South East States 
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I have had several ignition switches fail in m 1973. I am on the third "new" ignition switch in 4 years. I think these are a repro part and not up to the original standards. What usually happens is either the ACC does not switch on so the fuel pump does not run or the starter does not switch on leaving me stranded. Are these 3 position switches or just 2? Does anyone have a diagram for how to wire a switch for the ACC and a starter button? I notice there are 6 terminals on an ignition switch module so I assume this is not simple. I would keep the key just for unlocking the steering column and maybe rig a second, hidden switch for the fuel pumps. So far my engine has been very reliable and it has always been electrical problems in the relay board (now thankfully removed by Joe O'Brien from Series9) and the stupid ignition switch that have caused my car to not run. Thanks, John |
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| Bartlett 914 |
Mar 31 2015, 09:50 AM
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Advanced Member Group: Members Posts: 2,218 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
I think this is a good case for the "hot start relay" A simple relay located by the starter. The ignition switch pulls the relay and the relay contacts engage the starter. Look at the size of the wire that pulls the starter solenoid. It is a pretty big conductor. Your switch needs to handle all this current. Put the load on a cheap relay and save the load on the switch
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Posts in this topic
FourBlades Ignition switch failures. Mar 30 2015, 08:28 PM
screenguy914 Most ign. switch wear and tear is due to current f... Mar 31 2015, 01:53 AM WLD419 Hello John, here's a diagram of what I did for... Mar 31 2015, 03:57 AM jim_hoyland Does the yellow wire going to the original ignitio... Mar 31 2015, 06:40 AM
WLD419
Does the yellow wire going to the original igniti... Mar 31 2015, 08:54 AM patssle I'm using this push button...it handles the am... Mar 31 2015, 10:45 AM FourBlades How much load is on the accessory part of the swit... Mar 31 2015, 12:12 PM FourBlades Double post. Mar 31 2015, 12:23 PM |
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