Engine ran for a second, died, now no spark. - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Brandons63 · 05-29-2016, 02:27 AM

[QUOTE=vetnat;7608417] on the big wire joining the + cable terminal to the horn relay (which my dad does not think is factory).

This is a factory wire, you can see it on the wiring diagram I sent you in the first few posts of this thread

**vetnat** · 05-30-2016, 12:13 AM

Had a look at the wiring diagram, I see the wire from battery to horn relay. In real life, that is one honking big wire

My dad came over this afternoon to listen to the truck run. He got it started up pretty quick. By using the manual choke, it was around 22 degrees Celsius here today (about 70 F). I didn't think you needed to use the choke when it was warm outside? Anyway, the GEN light was off while the truck was running, but then on with the key OUT! That was a new development. There is also a toggle switch under the dash, between the radio and the ignition switch. Its never seemed to do anything before, but today it made the GEN light illuminate brighter when I flicked it (engine off, key out). Huh. Anyway, my dad thought the innards of the voltage regulator might be stuck or sticky, so he tapped on the case a few times with a screw driver, but the GEN light was still on. So, he started taking the cover off, when sparks started flying out of it and it burnt his finger. He yelled at me to pull the battery cable, but I had the clamps snugged up and no wrench at hand. Lesson learned, I guess. After pulling the battery cable, we got the cover off the voltage regulator and pieces were falling out of it. Guess a piece had fallen against the cover and shorted out to it. My dad figures it might have fallen apart while he was banging on it with the screwdriver. Who knows, I said it had just been sitting beside my garage waiting to cause a fire, glad the sparks flew while we were right there. The truck has an alternator installed, so my dad figures the voltage regulator was installed at the same time. Looking at the shop manual for a 63 (the shop manual I have), the pictures of the regulator look the same, so I will try having a look for one of those. I assume the voltage regulator is different between trucks with generators and alternators?

vince1 · 05-31-2016, 10:21 AM

Hi vetnat. We were through Moose Jaw once and went on the tour of Al Capone's tunnels. Quite an impressive operation he had going on there.

As for the alternator, just changing it to one with an internal regulator would probably be the easiest. I cruise the junk yard until I find one that looks fresh and usually has an overhaul sticker on it. 10si has the steel fan and 12si has the plastic. I hook the old output wire to #2 terminal and run a new #8 wire for the output. The brown wire from the light goes to terminal #1.

**vetnat** · 05-31-2016, 09:46 PM

Thanks for the info. Will definitely be an option, the price for a new regulator at my local part store was $110! The Tunnels of Moose Jaw are a good local attraction. I've been on the Al Capone tour, they also do one on Chinese immigrants in the 1900's that I haven't seen.

vince1 · 05-31-2016, 10:03 PM

What kind of an alternator/generator and regulator do you have?

**vetnat** · 05-31-2016, 10:09 PM

PO replaced the generator with an alternator. The alternator is a 37 amp, and the regulator was a delco remy that could be out of a 63.

vince1 · 05-31-2016, 10:49 PM

https://www.rockauto.com/en/catalog/...280,electrical

I might have one of those like in the first picture and could send it. PM me if you want it.

**vetnat** · 05-31-2016, 11:02 PM

No product comes up when I click the link.

jtrichard · 06-01-2016, 12:08 AM

click on voltage regulator and the one on the top of the list is what he has I be-live

**vetnat** · 06-02-2016, 01:11 AM

Thanks Vince! You mentioned in the PM a Pontiac Safari 100 amp alternator (not sunfire

, so the big boaty wagon, and not the minivan, I assume?

vince1 · 06-02-2016, 08:52 AM

The 89 Pontiac Safari is just one of the vehicles in a list of donors of the CS130 which comes with a V pulley because some want to order them that way from an auto parts store. I look at many vehicles in a junk yard for the small one with lugs 180 degrees and 6.6" across but usually they have a serpentine pulley and that gets changed to a V pulley. 15/16 socket and impact gun makes short work of getting the pulley off. If getting this alternator it also needs the connector with terminals PLIS.

**vetnat** · 06-07-2016, 01:16 AM

Hi Vince, had a welcome surprise in the mail today, got the voltage regulator already! Question: does the lone terminal on the back hook up to anything? I ask because the dead one did not have anything hooked to it, just the 4 terminals on the bottom.

vince1 · 06-07-2016, 09:57 AM

I only used that regulator for troubleshooting and just took the connector off my regulator and put it on that one and made sure the case was grounded. Grounding the case is important because quite often on original applications they are rubber mounted. I don't remember connecting anything to that terminal and it regulated good at 14+ volts.

Maybe others are more familiar with the extra terminal and what it should or could be used for.

05-29-2016, 02:27 AM	#26
Brandons63 Registered User Join Date: Feb 2016 Location: Clarkston, Wa Posts: 345	Re: Engine ran for a second, died, now no spark. [QUOTE=vetnat;7608417] on the big wire joining the + cable terminal to the horn relay (which my dad does not think is factory). This is a factory wire, you can see it on the wiring diagram I sent you in the first few posts of this thread __________________ MY BUILD http://67-72chevytrucks.com/vboard/s...d.php?t=704329

05-30-2016, 12:13 AM	#27
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. Had a look at the wiring diagram, I see the wire from battery to horn relay. In real life, that is one honking big wire My dad came over this afternoon to listen to the truck run. He got it started up pretty quick. By using the manual choke, it was around 22 degrees Celsius here today (about 70 F). I didn't think you needed to use the choke when it was warm outside? Anyway, the GEN light was off while the truck was running, but then on with the key OUT! That was a new development. There is also a toggle switch under the dash, between the radio and the ignition switch. Its never seemed to do anything before, but today it made the GEN light illuminate brighter when I flicked it (engine off, key out). Huh. Anyway, my dad thought the innards of the voltage regulator might be stuck or sticky, so he tapped on the case a few times with a screw driver, but the GEN light was still on. So, he started taking the cover off, when sparks started flying out of it and it burnt his finger. He yelled at me to pull the battery cable, but I had the clamps snugged up and no wrench at hand. Lesson learned, I guess. After pulling the battery cable, we got the cover off the voltage regulator and pieces were falling out of it. Guess a piece had fallen against the cover and shorted out to it. My dad figures it might have fallen apart while he was banging on it with the screwdriver. Who knows, I said it had just been sitting beside my garage waiting to cause a fire, glad the sparks flew while we were right there. The truck has an alternator installed, so my dad figures the voltage regulator was installed at the same time. Looking at the shop manual for a 63 (the shop manual I have), the pictures of the regulator look the same, so I will try having a look for one of those. I assume the voltage regulator is different between trucks with generators and alternators? __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

05-31-2016, 10:21 AM	#28
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: Engine ran for a second, died, now no spark. Hi vetnat. We were through Moose Jaw once and went on the tour of Al Capone's tunnels. Quite an impressive operation he had going on there. As for the alternator, just changing it to one with an internal regulator would probably be the easiest. I cruise the junk yard until I find one that looks fresh and usually has an overhaul sticker on it. 10si has the steel fan and 12si has the plastic. I hook the old output wire to #2 terminal and run a new #8 wire for the output. The brown wire from the light goes to terminal #1.

05-31-2016, 09:46 PM	#29
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. Thanks for the info. Will definitely be an option, the price for a new regulator at my local part store was $110! The Tunnels of Moose Jaw are a good local attraction. I've been on the Al Capone tour, they also do one on Chinese immigrants in the 1900's that I haven't seen. __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

05-31-2016, 10:03 PM	#30
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: Engine ran for a second, died, now no spark. What kind of an alternator/generator and regulator do you have?

05-31-2016, 10:09 PM	#31
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. PO replaced the generator with an alternator. The alternator is a 37 amp, and the regulator was a delco remy that could be out of a 63. __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

05-31-2016, 10:49 PM	#32
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: Engine ran for a second, died, now no spark. https://www.rockauto.com/en/catalog/...280,electrical I might have one of those like in the first picture and could send it. PM me if you want it.

05-31-2016, 11:02 PM	#33
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. No product comes up when I click the link. __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

06-01-2016, 12:08 AM	#34
jtrichard Registered User Join Date: Jun 2013 Location: joshua tree ca. Posts: 1,484	Re: Engine ran for a second, died, now no spark. click on voltage regulator and the one on the top of the list is what he has I be-live

06-02-2016, 01:11 AM	#35
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. Thanks Vince! You mentioned in the PM a Pontiac Safari 100 amp alternator (not sunfire , so the big boaty wagon, and not the minivan, I assume? __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

06-02-2016, 08:52 AM	#36
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: Engine ran for a second, died, now no spark. The 89 Pontiac Safari is just one of the vehicles in a list of donors of the CS130 which comes with a V pulley because some want to order them that way from an auto parts store. I look at many vehicles in a junk yard for the small one with lugs 180 degrees and 6.6" across but usually they have a serpentine pulley and that gets changed to a V pulley. 15/16 socket and impact gun makes short work of getting the pulley off. If getting this alternator it also needs the connector with terminals PLIS.

06-07-2016, 01:16 AM	#37
vetnat Senior Member Join Date: Jun 2015 Location: Moose Jaw, SK Posts: 511	Re: Engine ran for a second, died, now no spark. Hi Vince, had a welcome surprise in the mail today, got the voltage regulator already! Question: does the lone terminal on the back hook up to anything? I ask because the dead one did not have anything hooked to it, just the 4 terminals on the bottom. __________________ 1961 GMC half ton, short step, Canadian model. Just starting work on it.

06-07-2016, 09:57 AM	#38
vince1 Registered User Join Date: Jan 2013 Location: Calgary Alberta Posts: 1,170	Re: Engine ran for a second, died, now no spark. I only used that regulator for troubleshooting and just took the connector off my regulator and put it on that one and made sure the case was grounded. Grounding the case is important because quite often on original applications they are rubber mounted. I don't remember connecting anything to that terminal and it regulated good at 14+ volts. Maybe others are more familiar with the extra terminal and what it should or could be used for.



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