Coil Question

Print Thread

Rate Thread

Coil Question #422587 03/16/19 08:39 AM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	I have a coil that has a nick in it. It goes through the casing into the coil itself. I can't see any wires or anything but what are the chances that it is still good? Attached Images

Join VCCA For Technical Help

VCCA members have access to a list of over 50 Technical Advisors who can help you with your car. It's worth the price of membership! While you can get a lot of information for free in this forum, sometimes the info that you REALLY need is only available from the right person. This is what "The World's Best Chevrolet Club" is all about!

JOIN THE VCCA TODAY!

Re: Coil Question PeterV #422593 03/16/19 09:41 AM
Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi. Chev Nut ChatMaster - 25,000
Chev Nut ChatMaster - 25,000 Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi.	double post also Gene Schneider

Re: Coil Question Chev Nut #422594 03/16/19 09:52 AM
Joined: Jan 2008 Posts: 828 Likes: 6 iowa dens41 ChatMaster - 750
dens41 ChatMaster - 750 Joined: Jan 2008 Posts: 828 Likes: 6 iowa	Should be junk when the oil leaks out, it will overheat. Dens Chevys 1927 Speedster 1928 coupe 1941street rod 1947Fleetline 4 door 1949 1/2 ton Pickup (sold) 1954 210 4 door 1972 Monte Carlo 2003 Corvette convt..

Re: Coil Question PeterV #422596 03/16/19 10:08 AM
Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi. Chev Nut ChatMaster - 25,000
Chev Nut ChatMaster - 25,000 Joined: Jan 2002 Posts: 30,701 Likes: 141 West Allis,Wi.	Those old coils were not oil filled. The oil filled came along in 1941. Gene Schneider

Re: Coil Question PeterV #422598 03/16/19 11:03 AM
Joined: Nov 2001 Posts: 29,863 Eagle Point, Oregon Junkyard Dog Tech Advisor ChatMaster - 25,000
Junkyard Dog Tech Advisor ChatMaster - 25,000 Joined: Nov 2001 Posts: 29,863 Eagle Point, Oregon	With damage like that I would replace the coil. The Mangy Old Mutt "If It's Not Junk.....It's Not Treasure!"

Re: Coil Question Chev Nut #422607 03/16/19 01:01 PM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	I did double post. After I wrote this I realized I should also post under 6V electrical.

Re: Coil Question PeterV #422608 03/16/19 01:18 PM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	Thanks for the info. I wasn't sure if it would be ok to use. I know there was no oil in it so I filled the nick with JB weld. It came out fine. I sanded it and painted it and it looks good, but wasn't sure if it would work.

Re: Coil Question PeterV #422611 03/16/19 01:41 PM
Joined: Nov 2001 Posts: 29,863 Eagle Point, Oregon Junkyard Dog Tech Advisor ChatMaster - 25,000
Junkyard Dog Tech Advisor ChatMaster - 25,000 Joined: Nov 2001 Posts: 29,863 Eagle Point, Oregon	Before installing you should test the coil to make sure that is works and is serviceable. The Mangy Old Mutt "If It's Not Junk.....It's Not Treasure!"

Re: Coil Question PeterV #422640 03/17/19 02:32 AM
Joined: May 2002 Posts: 6,149 Likes: 42 Goulburn Australia tonyw ChatMaster - 6,000
tonyw ChatMaster - 6,000 Joined: May 2002 Posts: 6,149 Likes: 42 Goulburn Australia	It may well be usable if it tests ok but I would only carry it as a spare to get home on, certainly would not rely on it for a long tour. Tony 1938 1/2 ton Hope to drive it before I retire

Re: Coil Question Junkyard Dog #422688 03/17/19 10:56 PM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	How do I test a coil? I was told to put it in another car and see if it starts the car. One problem, I don't have another 6V car to test it on, plus it is connected to an electrolock and I don't know how to take the bottom cap off.

Re: Coil Question PeterV #422701 03/18/19 10:43 AM
Joined: Oct 2012 Posts: 119 San Antonio oldchevy36 Shade Tree Mechanic
oldchevy36 Shade Tree Mechanic Joined: Oct 2012 Posts: 119 San Antonio	You have to test the resistance in the windings with a multimeter. Primary windings are red to positive terminal on the coil and black to the negative terminal. Then test the secondary winding resistance red to positive and black to coil center. 1936 Chevy Std 1954 3600 Truck 2008 Corvette Z06

Re: Coil Question oldchevy36 #422703 03/18/19 11:05 AM
Joined: Jul 2006 Posts: 1,884 Likes: 12 Farmington, New Mexico Jonjet ChatMaster - 1,500
Jonjet ChatMaster - 1,500 Joined: Jul 2006 Posts: 1,884 Likes: 12 Farmington, New Mexico	A good way to test the Coil is to disconnect it. Use another good coil, even a later 6 volt coil to start the car. If it starts then hook up the Coil you want to test. If it's good it should start right away. Let it run about 20 minutes until the Engine gets hot. If it still runs the Coil is good. If the Engine dies and won't restart, then the Coil is no good. Last edited by Jonjet; 03/18/19 11:07 AM. Jon T.

Re: Coil Question PeterV #422738 03/18/19 08:14 PM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	Thanks all for the advice. I'll have to see if one of my buddies will let me play with their car.

Re: Coil Question PeterV #422809 03/19/19 05:00 PM
Joined: Oct 2015 Posts: 345 Likes: 1 SOUTHERN CALIF 36RAGTOP Backyard Mechanic
36RAGTOP Backyard Mechanic Joined: Oct 2015 Posts: 345 Likes: 1 SOUTHERN CALIF	Originally Posted by PeterV Thanks all for the advice. I'll have to see if one of my buddies will let me play with their car. have AAA on stand by

Re: Coil Question oldchevy36 #422854 03/20/19 10:27 AM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	How much resistance am I looking for? What would the primary and secondary resistances be? Am I just looking for any resistance to show that the windings aren't broken?

Re: Coil Question PeterV #423144 03/25/19 09:44 AM
Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA PeterV OP Backyard Mechanic
OP PeterV Backyard Mechanic Joined: Jan 2016 Posts: 414 Likes: 8 West Townsend, MA	Does anyone know what the resistances are supposed to be on the primary and secondary windings of the coil?

Hop To

Link Copied to Clipboard

VCCA Home Forums GENERAL DISCUSSION General Discussions Coil Question