The Ford Barn

topchop · 09-11-2014, 04:10 PM

Reference previous post from a couple days ago "Oil Pan Gasket Replacement", now I am ready to start that 59A motor on a stand on the garage floor.

I am a little uncertain about wiring in the basic circuit. It's a stock '46 -47 distributor with single wire bale clip cap, and the stock style condenser next to the vacuum break piston.
My plan is to run the positive battery terminal to ground, neg battery term to the coil and bump the starter post with the negative battery terminal. Just want to make sure it fires on all 8.

All I have is a 12v late style coil. Can I get way with using this for testing purposes, or do I need to get a 6v coil? Do I need anything else in line (other condenser) to provide the correct juice to the dizzy? Thanks, guys.

Jim in Rochester

BUBBAS IGNITION · 09-11-2014, 06:40 PM

The coil you have should work just fine......
No resistor needed for this testing etc........

Terry,OH · 09-12-2014, 05:15 AM

Think about stopping the engine. Unless your going to rip the wire off the coil a switch would be good.

topchop · 09-12-2014, 06:10 AM

Bubba, thanks.
Terry, switch was in the plan

.

This is NOT me.
https://www.youtube.com/watch?v=Y1Cnz6ntJ88

LOWRIDER · 09-12-2014, 08:42 AM

When you hook up the 12v coil to your engine will it be wired with the + coil terminal to the battery + and the - terminal to the dist.

topchop · 09-12-2014, 06:45 PM

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Lowrider, reading you reply, I thouight you were making a statement regarding the wire hookup from battery to coil. I see from your later thread, you have that as a question. My understanding, is the negative battery terminal goes to the BAT terminal (through an on-off switch) on the coil, and to the post on the starter to engage the starter. Positive battery terminal to the ground. If this info is incorrect, maybe someone can chime in and set us straight.
Thanks.

LOWRIDER · 09-12-2014, 08:22 PM

My answer for your situation was for a 12v system. The question I asked was for a 6v system. I'm more than a bit rusty on 6v systems. Haven't touched one since the mid 60's and you rarely saw one by then.

Ol' Ron · 09-12-2014, 09:34 PM

When you get it running, bring it up to 12=1500 rpm after checking oil pressure run till hot. Shut down re-torque heads when cold. Then put it in the car and drive it hard. Do-not leave it on the run stand to impress your friends, this can lead to an oil burner and low compression.

topchop · 09-18-2014, 05:44 PM

Follow up:
- New fuel pump
- rebuilt carb (ant colony set up residence in bowl)
- cleaned and reset points per the "scale" method
- primed the fuel system by cranking a while without plugs
- 12v coil (wired per my post #6 above)

https://www.youtube.com/watch?v=qQE-XTZ56WQhttp://

Started on first revolution
60 lbs oil pressure

supereal · 09-19-2014, 12:00 PM

If the vehicle system is 12 volts, use a twelve volt coil. If it is six volts, use a six volt coil. Original type coils need the resistor in series to reduce coil input voltage to just over 3 volts. If you are using a modern round 6 volt coil, most have a built in resistor, and don't need the one on the firewall. Just check the coil input voltage with the points closed to see if it is correct. If you check with the points open, you will just see battery voltage. Maintaining the correct coil voltage is essential to prevent burning the points and cooking the coil.

09-11-2014, 06:40 PM	#2
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: 12v coil or do I need 6v coil The coil you have should work just fine...... No resistor needed for this testing etc........ __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]

09-12-2014, 05:15 AM	#3
Terry,OH Senior Member Join Date: May 2010 Posts: 4,751	Re: 12v coil or do I need 6v coil Think about stopping the engine. Unless your going to rip the wire off the coil a switch would be good.

09-12-2014, 06:10 AM	#4
topchop Senior Member Join Date: Sep 2013 Location: Rochester, NY Posts: 110	Re: 12v coil or do I need 6v coil Bubba, thanks. Terry, switch was in the plan . This is NOT me. https://www.youtube.com/watch?v=Y1Cnz6ntJ88

09-12-2014, 08:42 AM	#5
LOWRIDER Senior Member Join Date: May 2010 Location: Kingman Az. 86409 Posts: 419	Re: 12v coil or do I need 6v coil When you hook up the 12v coil to your engine will it be wired with the + coil terminal to the battery + and the - terminal to the dist. __________________ Dan Kingman Az. 86409

09-12-2014, 08:22 PM	#7
LOWRIDER Senior Member Join Date: May 2010 Location: Kingman Az. 86409 Posts: 419	Re: 12v coil or do I need 6v coil My answer for your situation was for a 12v system. The question I asked was for a 6v system. I'm more than a bit rusty on 6v systems. Haven't touched one since the mid 60's and you rarely saw one by then. __________________ Dan Kingman Az. 86409

09-12-2014, 06:45 PM	#6
topchop Senior Member Join Date: Sep 2013 Location: Rochester, NY Posts: 110	Re: 12v coil or do I need 6v coil Sponsored Links (Register now to hide all advertisements) Lowrider, reading you reply, I thouight you were making a statement regarding the wire hookup from battery to coil. I see from your later thread, you have that as a question. My understanding, is the negative battery terminal goes to the BAT terminal (through an on-off switch) on the coil, and to the post on the starter to engage the starter. Positive battery terminal to the ground. If this info is incorrect, maybe someone can chime in and set us straight. Thanks.

09-12-2014, 09:34 PM	#8
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: 12v coil or do I need 6v coil When you get it running, bring it up to 12=1500 rpm after checking oil pressure run till hot. Shut down re-torque heads when cold. Then put it in the car and drive it hard. Do-not leave it on the run stand to impress your friends, this can lead to an oil burner and low compression.

09-18-2014, 05:44 PM	#9
topchop Senior Member Join Date: Sep 2013 Location: Rochester, NY Posts: 110	Re: 12v coil or do I need 6v coil Follow up: - New fuel pump - rebuilt carb (ant colony set up residence in bowl) - cleaned and reset points per the "scale" method - primed the fuel system by cranking a while without plugs - 12v coil (wired per my post #6 above) https://www.youtube.com/watch?v=qQE-XTZ56WQhttp:// Started on first revolution 60 lbs oil pressure

09-19-2014, 12:00 PM	#10
supereal Senior Member Join Date: Jul 2014 Location: Iowa Posts: 1,634	Re: 12v coil or do I need 6v coil If the vehicle system is 12 volts, use a twelve volt coil. If it is six volts, use a six volt coil. Original type coils need the resistor in series to reduce coil input voltage to just over 3 volts. If you are using a modern round 6 volt coil, most have a built in resistor, and don't need the one on the firewall. Just check the coil input voltage with the points closed to see if it is correct. If you check with the points open, you will just see battery voltage. Maintaining the correct coil voltage is essential to prevent burning the points and cooking the coil.