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Re: Ignition system voltage drop [message #239791 is a reply to message #239586]

Wed, 12 February 2014 20:52

WildBill

Messages: 232
Registered: January 2014

Karma:

Senior Member

If it cranks yes you have a voltage drop problem. Connect a lead from good battery source to distributor positive. If it's a big spark or you see smoke possible something grounded in distributor. Might want to put an inline fuse in for the test, 15 amps would be plenty. Should run if no distributor problem. If it cranks engine ground good but could have poor ground between block and distributor. Volt meter voltage drop test from distributor housing to block will indicate that. You would want like 0.2 volt, if you see 6 volts that's your problem, loose dist hold down clamp etc. jumper wire distributor to block would alleviate problem. Otherwise problem between including ignition switch to distributor and any connections between. Still have not looked at a wiring diagram so don't know what the had fore firewall plugs etc. at any rate hot wire to dist pos and jumper from dist housing to block should make you run ruling out the distributor. Good luck!

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[Message index]

		Ignition system voltage drop By: gbarrow2 on Tue, 11 February 2014 18:16
		Re: Ignition system voltage drop By: JohnL455 on Tue, 11 February 2014 18:24
		Re: [GMCnet] Ignition system voltage drop By: Mr ERFisher on Tue, 11 February 2014 18:22
		Re: Ignition system voltage drop By: Otterwan on Tue, 11 February 2014 18:34
		Re: Ignition system voltage drop By: Ken Burton on Tue, 11 February 2014 19:44
		Re: [GMCnet] Ignition system voltage drop By: Rivers on Tue, 11 February 2014 22:06
		Re: [GMCnet] Ignition system voltage drop By: Ken Burton on Wed, 12 February 2014 01:19
		Re: [GMCnet] Ignition system voltage drop By: gbarrow2 on Wed, 12 February 2014 08:46
		Re: [GMCnet] Ignition system voltage drop By: Ken Burton on Wed, 12 February 2014 09:18
		Re: [GMCnet] Ignition system voltage drop By: gbarrow2 on Wed, 12 February 2014 10:12
		Re: [GMCnet] Ignition system voltage drop By: Otterwan on Wed, 12 February 2014 11:47
		Re: [GMCnet] Ignition system voltage drop By: Ken Burton on Wed, 12 February 2014 18:41
		Re: [GMCnet] Ignition system voltage drop By: Matt Colie on Wed, 12 February 2014 19:46
		Re: [GMCnet] Ignition system voltage drop By: Ken Burton on Thu, 13 February 2014 02:03
		Re: [GMCnet] Ignition system voltage drop By: Matt Colie on Thu, 13 February 2014 09:15
		Re: [GMCnet] Ignition system voltage drop By: gbarrow2 on Thu, 13 February 2014 10:15
		Re: [GMCnet] Ignition system voltage drop By: Matt Colie on Thu, 13 February 2014 10:32
		Re: Ignition system voltage drop By: Matt Colie on Tue, 11 February 2014 19:09
		Re: Ignition system voltage drop By: roy1 on Tue, 11 February 2014 19:55
		Re: Ignition system voltage drop By: WildBill on Wed, 12 February 2014 20:52
		Re: Ignition system voltage drop By: SteveW on Thu, 13 February 2014 10:25
		Re: Ignition system voltage drop By: gbarrow2 on Thu, 13 February 2014 11:12
		Re: Ignition system voltage drop By: SteveW on Thu, 13 February 2014 12:54

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