Ign Coil Tests...
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New User
Joined: May 2003
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Ign Coil Tests...
Hey all,
I've got my 72 f100 302 out of winter storage finally, and I am continuing my quest to get it purrring. Can you help me with any ideas on how to test the coil? It turns over, but it doesn't seem to get any juice to the plugs... the S.P. cables are all brand new.
Thanks in advance!.... glad to be elbow deep in engine dirt again.....
mike
I've got my 72 f100 302 out of winter storage finally, and I am continuing my quest to get it purrring. Can you help me with any ideas on how to test the coil? It turns over, but it doesn't seem to get any juice to the plugs... the S.P. cables are all brand new.
Thanks in advance!.... glad to be elbow deep in engine dirt again.....
mike
Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
Ign Coil Tests...
You can meter the coil between the coil tower and the negative terminal should have continuity and maybe around 6000 to 9000 ohms or so and between the coil positive terminal and the coil negative terminal should also have continuity and around 10 ohms or less.
I am not really sure of the exact resistnace values depends on type of coil and how old it is. Nut you should have continuity both ways with the tower to negative being significantly higher in readings.
Have you checked your points to see if they are stuck closed or pitted/corroded ??? Or does the truck have electronic ignition like the Duraspark?
I am not really sure of the exact resistnace values depends on type of coil and how old it is. Nut you should have continuity both ways with the tower to negative being significantly higher in readings.
Have you checked your points to see if they are stuck closed or pitted/corroded ??? Or does the truck have electronic ignition like the Duraspark?
Postmaster
Joined: Jan 2003
Posts: 4,417
Likes: 3
From: Durham, NC
Ign Coil Tests...
Make sure you have 12V on the positive terminal on the coil.
Also, check and see if you have spark coming out of the coil,
going to the distributor cap. If you have spark coming out of
the coil, and not the plugs, try changing the distributor cap &
rotor.....
Also, check and see if you have spark coming out of the coil,
going to the distributor cap. If you have spark coming out of
the coil, and not the plugs, try changing the distributor cap &
rotor.....
Thread Starter
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New User
Joined: May 2003
Posts: 8
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Ign Coil Tests...
It has the point, condenser..they are new, as is the distributor, the cap and all cables... just that old coil looking back at me... I will have to get a new voltmeter... thanks guys..
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