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#379865 - 12/06/16 02:45 AM 50 year old Ignition Coil
Boardwalk25 Offline
Shade Tree Mechanic

Registered: 01/20/12
Posts: 127
Loc: S.E. PA U.S.A.
We have the original 208 ignition coil on our 65 Nova (194 C.I.D 6 cylinder) but not sure if the secondary resistance is up to par.

Engine runs ok... spark not yellow... doesn't seem to leak any oil.
Primary is spot on at 1.5, secondary is 5.9K.
However the specs on the replacement coil are 1.5 and 12K (min 7.5K).

Does this indicate the original coil is living on borrowed time and should be replaced?

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#379870 - 12/06/16 04:17 AM Re: 50 year old Ignition Coil [Re: Boardwalk25]
Chev Nut Offline




Registered: 01/08/02
Posts: 24989
Loc: West Allis,Wi.
My former 1934 is still doing fine with the original coil.
If you don't have a problem don't worry about it. I always carry a spare coil in the trunk of all my cars.
_________________________
Chevgene

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#379876 - 12/06/16 05:17 AM Re: 50 year old Ignition Coil [Re: Chev Nut]
Boardwalk25 Offline
Shade Tree Mechanic

Registered: 01/20/12
Posts: 127
Loc: S.E. PA U.S.A.
That's what I was thinking. The replacement is already on, so the 208 can go in the trunk. It should last longer in there. At first I thought it went bad but that turned out be me never realizing you really can put the diz advance weights on backwards.
It was like driving a herd of turtles going up hill :)
Spitting and popping all the way... all's good now.

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#379878 - 12/06/16 07:17 AM Re: 50 year old Ignition Coil [Re: Boardwalk25]
Junkyard Dog Offline




Registered: 11/23/01
Posts: 28629
Loc: Eagle Point, Oregon
My all original 1932 Special Sedan is still running with the original coil. If it ain't broke, don't replace it!

laugh wink beer2
_________________________
The Mangy Old Mutt

"If It's Not Junk.....It's Not Treasure!"

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#379899 - 12/06/16 03:39 PM Re: 50 year old Ignition Coil [Re: Junkyard Dog]
Boardwalk25 Offline
Shade Tree Mechanic

Registered: 01/20/12
Posts: 127
Loc: S.E. PA U.S.A.
Originally Posted By: Junkyard Dog
My all original 1932 Special Sedan is still running with the original coil. If it ain't broke, don't replace it!

laugh wink beer2


Very true but sometimes determining what's marignal is not easy to discern. 6K was the lowest spec I found, so being under that, didn't inspire me with confidence in the coil. I guess, other than leaking oil, there is no warning - they either work or fail.

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#379900 - 12/06/16 03:54 PM Re: 50 year old Ignition Coil [Re: Boardwalk25]
Chipper Offline




Registered: 11/22/01
Posts: 16632
Loc: The Great State of TEXAS
Some modern ones overheat and cut out. After cooling they return from the dead. So you might not be better off replacing one that is working even if it is old.
_________________________
How Sweet the roar of a Chevy four!

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#379901 - 12/06/16 05:20 PM Re: 50 year old Ignition Coil [Re: Chipper]
Boardwalk25 Offline
Shade Tree Mechanic

Registered: 01/20/12
Posts: 127
Loc: S.E. PA U.S.A.
I have heard that's possible, probably even with a oem coil. On the 1,000 mile drive home from purchase it may have done that twice but then there wasn't much time to dig deeper. There was a lot of "deferred maintenance" on this car I've been sorting out on and off for about a year, so everything is suspect until proven good.

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