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Missive on Modern Coils
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Lancer Mike
Posted 2019-04-14 11:34 PM (#580889)
Subject: Missive on Modern Coils



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Location: The Mile High City

About a year ago, I purchased a new coil from Auto Parts Store X.  Darn thing croaked on me within the year.  Bought another - it didn't work out-of-the-box.

To discover this, I replaced a bunch of ignition parts.  I only found out when, in a last ditch effort, I dug out an old-time coil from the shelf and put it in.  Fired right up! Strong sparks blowin' everywhere.

Given this experience, my opinion of modern over-the-counter coils is that they are grade F junk.

 

Any thoughts or similar experiences?

How do you buy a reliable coil now that isn't China trash?

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56D500boy
Posted 2019-04-15 1:54 AM (#580895 - in reply to #580889)
Subject: RE: Missive on Modern Coils



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Posts: 4663
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Location: Lower Mainland BC
Lancer Mike - 2019-04-14 8:34 PM
Any thoughts or similar experiences?How do you buy a reliable coil now that isn't China trash?


BTDT as I posted back in 2016:

56D500boy - 2016-12-02 8:08 PM

UPDATE:

Had the 56 in the local shop this AM to cure a lean backfire under load (it needed real timing now that the engine was running and the "restored" carb needed some additional adjustments/tweaking). It can now get out of its own way and make it up my local hill without drama. Yay.

One thing that came out during this exercise was the new coil that I bought and installed on Nov. 11 was failing to provide consistently good spark, i.e. it was a piece of merde. They installed a new NAPA coil (what the shop uses). I'll keep it for now.

Suggestions for an excellent decent reliable coil that is OE appearing will be welcomed.

SO the PSA is to avoid coils with this labelling:





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Phil_the_frenchie
Posted 2019-04-15 4:01 AM (#580902 - in reply to #580889)
Subject: Re: Missive on Modern Coils



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Location: Pau, S-W France
I agree, i replace 2 "Flamethrower" coils (Pertronix), one lasted only 1 1/2 years. I wrote to Pertronix, no reply ...
And as stated "i.e. it was a piece of merde" !!!! Thanks for this french word (= sh*t)
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56D500boy
Posted 2019-04-15 8:45 AM (#580904 - in reply to #580902)
Subject: Re: Missive on Modern Coils



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Posts: 4663
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Location: Lower Mainland BC
Phil_the_frenchie - 2019-04-15 1:01 AM

I agree, i replace 2 "Flamethrower" coils (Pertronix), one lasted only 1 1/2 years. I wrote to Pertronix, no reply ...
And as stated "i.e. it was a piece of merde" !!!! Thanks for this french word (= sh*t)


Mais NON!!!

I after switching to Pertronix ignition inside my dual point distributor, I have been running a Pertronix Flamethrower coil thinking that the car is invincible now. But now you say, the Flamethrower will fail soon?

Yikes. I liked it because of the voltage and the lack of the need for a ballast resistor.

Hmm...

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Phil_the_frenchie
Posted 2019-04-15 2:49 PM (#580928 - in reply to #580889)
Subject: Re: Missive on Modern Coils



Elite Veteran

Posts: 860
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Location: Pau, S-W France
The first "flamethrower" (on Imperial) lasted around 8 years, the second (on my '70 Ford) lasted 1 1/2 years. The two were oil filled, i installed now an epoxy on the Imperial (the coil is horizontal and on the intake manifold). On the Ford the coil was vertical and far from engine ...

RIP Notre Dame de Paris

Edited by Phil_the_frenchie 2019-04-15 2:51 PM
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Beltran
Posted 2019-04-23 11:47 AM (#581242 - in reply to #580889)
Subject: Re: Missive on Modern Coils



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Location: Michigan
I have used normal and pertronix coils. These coils produce more energy and hence run hotter. So they can get too hot. That said. I had an improper ground on my new alternator. That was an upgrade and I did not follow the instructions to the letter installing it. I needed a separate ground wire from the alternator to the block. Having it mounted to an iron mount on the engine was not good enough. The vibration made the connection intermittent which caused spikes in the ignition circuit that ended up cooking my pertronix setup, twice. I have switched to a hidden GM HEI in the meantime and that is working well. I do think the pertronix is inferior (China made) But the 45k Series 1 coil is very nice and can really boost your spark over a 25k stock coil. Lesson is... make sure your grounds are good! That voltage has got to go somewhere and if it's not to your spark plugs its gonna cook something eventually.
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