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Username Post: Coil ?        (Topic#354210)
PLS 
"7th Year" Silver Supporting Member
Posts: 1141
PLS
Loc: Smyrna, Georgia
Reg: 06-07-12
12-04-18 11:43 AM - Post#2753350    

I still have the last coil that was on my ’60 Impala 283, Delco Remy made in the USA, and was curious about whether it could still be good enough to use. I searched how to test it and most that I found was pretty much like below. One said to first test the ohm reading of the meter that is being used by just touching the leads together and then subtract that reading, mine .3, from the coil test readings. On my Delco Remy post to post is 1.6 ohms -.3 = 1.3 ohms and from post to center high tension is 7.60 k ohms (7,600-.300=7,300 ohms if I’m figuring correctly.). My China coil is 1.8 ohms and 9.88 ohms respectively without deducting the .3 ohms. In your opion would the Delco be sufficient? Thanks, Lamar
2
Place one test lead from the ohms meter on the negative post and one on the positive post of the coil. it doesn't matter which lead goes on which post because you are measuring resistance, not amps or volts. The reading should be between .70 and 1.7 ohms. If it is outside that range, the coil is defective.
3
Place a lead from the ohmmeter on either side terminal and one in the center high tension terminal. Read the ohms off the meter. You are looking for 7500 to 10,500 ohms, and if the reading falls outside that range, it indicates a defective coil.





 

Ecklers AutoMotive

IgnitionMan 
Valued Contributor
Posts: 3509

Reg: 04-15-05
12-04-18 03:59 PM - Post#2753377    
    In response to PLS

Those tests are very outdated.

See if you can find a good auto parts store that has an off vehicle electronics tester, one that can run the coil off the car.

Let the coil run on the machine, to get It up to operating temperature, that will tell the whole story for you.



 
PLS 
"7th Year" Silver Supporting Member
Posts: 1141
PLS
Loc: Smyrna, Georgia
Reg: 06-07-12
12-04-18 05:49 PM - Post#2753391    
    In response to IgnitionMan

I will check with a friend of mine at Advance Auto, he is an old school guy and works the commercial counter also knows how use the “books” not just the computer, to see if he knows of a place that can perform the procedure that you recommend. Thanks a bunch, Lamar



 
DonSSDD 
Silver Supporting Member
Posts: 6949
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
12-04-18 06:30 PM - Post#2753401    
    In response to PLS

New ones are cheap, get one and get your car running good then try this one and see if it works, if you want an original?

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
PLS 
"7th Year" Silver Supporting Member
Posts: 1141
PLS
Loc: Smyrna, Georgia
Reg: 06-07-12
12-04-18 07:00 PM - Post#2753405    
    In response to DonSSDD

Don, I have been running the “China” coil since I started the engine up the first time in 34 years back in 2014 and it has done good as far as I know. I ran across the Delco Remy that was on the engine when I stopped driving it in either late ’68 or early ’69 and thought that if it was good I would use it as you said to be original. The engine has run a good bit but I have only driven it 4 miles, 2 miles to the shop for alignment and 2 miles back. I did drive it on my street a few times.

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IgnitionMan 
Valued Contributor
Posts: 3509

Reg: 04-15-05
12-04-18 09:23 PM - Post#2753421    
    In response to PLS

One thing we can be thankful for is that GM engineers decided to run top of the line parts, instead of lower quality items.

That said, that stock coil is one of the best, 12 volt, rugged. They can even be run without a ballast resistor. Most of the performance coils were designed off that particular design coil.

If it checks good, run it.



 

Ecklers AutoMotive

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