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Index > Engine/Drivetrain > Thread: Ignition wiring
Thread: Ignition wiring
tpfister88


Revvin Up
Posts: 62
posted April 14, 2009 07:14 PM

Ignition wiring

Fired the old truck up today and noticed the wires behind the ignition(key) are getting pretty warm after a drive. What do ya'll think?
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roaddancer


Hauling
Posts: 127
posted April 14, 2009 11:14 PM

If it is right by the switch, pull out the connector from the back of the switch and plug it back in. this will wipe the contact surfaces. If the surfaces are corroded it may be the whole problem.
Watch for connectors backing out of the assembly when you push it back together. I had a "ghost" problem from that. Car would not start with the starter but fired instantly when pushed... The ignition bypass circuit connector had backed out and the coil was not getting boosted while cranking. Took me a week to figure that out... LOL
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Klaus45


Redlining
On two wheels
Posts: 218
posted April 15, 2009 10:51 AM

Better yet...

...hit it with a tiny bit of 'De-ox-it'-type electronics contact cleaner.

Might want to monitor it closely, though, no matter what -- the switches do tend to fail, at some point... not to mention what can happen to the aged wiring...

       
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sparky


Redlining
Posts: 299
posted April 15, 2009 11:27 AM

All amperage goes through the ignition switch. Mine always feels warm.

I also had same problem as road dancer. Ignition switch would cut out power to coils when in start position. Installed toggle switch for starter to bypass igntion switch. Starts great now.

       
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Klaus45


Redlining
On two wheels
Posts: 218
posted April 15, 2009 05:13 PM

quote:

I also had same problem as road dancer. Ignition switch would cut out power to coils when in start position.


Yep... me too!

       
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tpfister88


Revvin Up
Posts: 62
posted April 15, 2009 06:00 PM

Thanks Guys, I'll check that stuff closer tomorrow. drove her about 40mi today taking the kids dirt bikes out to the moto-x track and it did not seem anywhere near as warm as yesterday..........maybe just needed the cob webs blown out
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roaddancer


Hauling
Posts: 127
posted April 15, 2009 06:30 PM

For the younger folks here...
"Back in the day", Many cars had a 9 volt coil with a resister to drop the 12 volt down to 9. The ignition bypass would put 12 volts directly to the coil to get a hotter spark during cranking, overcoming the voltage drop caused by the starter... And no wankel will start without it....
I had accidently pushed that one connecter out the back of the ignition wiring plug on my rx2. Crank like mad but no start unless pushed. Found it by persistence and blind luck.

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