The Ford Barn

19Fordy · 07-05-2022, 09:54 AM

Car wouldn't start. Checked the coil and discovered the top plastic part had actually lifted out of the case. Never had that happen before. The ignition is 12V with Pertronix kit and matching coil. It has worked fine in the past. Coil is the oil filled Pertronix unit shown here:
https://www.amazon.com/PerTronix-400...a-568782789506

I suspect that the engine compartment heat caused the coil failure.
Would installing an aluminum coil cover like the ones shown below dissipate enough heat to protect the coil from overheating?
https://www.google.com/search?q=flat...client=gws-wiz

Or would it be better to wrap the coil in aluminum foil and foam insulation material. The coil is mounted on an aluminum bracket attached to a water pump bolt so radiator fan blows air on it. Should I relocate the coil?
Opinions welcome.

tubman · 07-05-2022, 10:03 AM

You probably don't want to hear my answer.

Lawson Cox · 07-05-2022, 10:04 AM

Go back to stock and get a Skip Haney coil. My 2¢

V8COOPMAN · 07-05-2022, 01:29 PM

Quote:

Originally Posted by Lawson Cox

Go back to stock and get a Skip Haney coil. My 2¢

It is clearly evident, as shown in 19Fordy's enclosed picture, that he is running an 8BA-type engine, ALL of which use the more modern, upright distributors. Even more applicable to this thread, it is also easy to see that these ignition systems use a can-type coil which is mounted adjacent to the distributor, which is the STOCK location for an 8BA engine. SKIP HANEY does not rebuild the 8BA-type coils. Your 2¢ not good today. Coop

Lawson Cox · 07-05-2022, 03:56 PM

Quote:

Originally Posted by V8COOPMAN

It is clearly evident, as shown in 19Fordy's enclosed picture, that he is running an 8BA-type engine, ALL of which use the more modern, upright distributors. Even more applicable to this thread, it is also easy to see that these ignition systems use a can-type coil which is mounted adjacent to the distributor, which is the STOCK location for an 8BA engine. SKIP HANEY does not rebuild the 8BA-type coils. Your 2¢ not good today. Coop

I can't be right ALL the time Coop. LOL

ford38v8 · 07-05-2022, 04:10 PM

Sponsored Links (Register now to hide all advertisements)

Quote:

Originally Posted by Lawson Cox

I can't be right ALL the time Coop. LOL

Lawson, my wife bought me a coffee cup she said would fit me just fine. Emblazoned on it in big letters: MR. RIGHT.

JayChicago · 07-05-2022, 10:06 AM

Or maybe an internal short caused the excessive heat. Why not just replace the coil? Probably will never happen again. Maybe replace with a regular coil cuz your flathead can never make use of that 40,000 volt boy-racer coil.

19Fordy · 07-05-2022, 10:10 AM

Thanks for the answers. I know Tubman is a points only guy.
The distributor is a Mallory dual point with mechanical advance so I could go back to points.
Who makes good high quality points?

BUBBAS IGNITION · 07-13-2022, 02:02 PM

Quote:

Originally Posted by 19Fordy

Thanks for the answers. I know Tubman is a points only guy.
The distributor is a Mallory dual point with mechanical advance so I could go back to points.
Who makes good high quality points?

As tub man stated you probably dont want to hear my answer so i will make it short . The perronixs coils have a problem . resistance isnt correct and often wrong coil ( low resistanceZ) is sold to customer then key is left on cil heats up with high amps ..........

tubman · 07-13-2022, 02:26 PM

Quote:

Originally Posted by 19Fordy

Thanks for the answers. I know Tubman is a points only guy.

The distributor is a Mallory dual point with mechanical advance so I could go back to points.

Who makes good high quality points?

There are two possible sources. The first is original Mallory points. I have found them on eBay for $20 to $25 new. You usually only have to replace the trailing points pair, as they are the ones that usually transfer material. Check the points before replacing them.

Secondly, NAPA has Echlin points that are a direct replacement for the original Mallory points. For example, Echlin CS754 points from NAPA are a functional replacement for the Mallory 24875 points. I have found other equivalences, but don't have them handy. if you can get the numbers off the original points, I may be able to match them up.

I have never had a problem with Echlin points.

TJ · 07-05-2022, 10:10 AM

I had two of those fail in the last year. Won't buy any more and know others who have had problems also.

tubman · 07-05-2022, 10:13 AM

Bosch Blue Coil?

19Fordy · 07-05-2022, 10:17 AM

Quote:

Originally Posted by tubman

Bosch Blue Coil?

No it's not a BOSCH Blue coil. It's the Pertronix coil 40001 that matches the Pertronix conversion kit.
https://www.amazon.com/PerTronix-400...a-568782789506

tubman · 07-05-2022, 10:22 AM

Quote:

Originally Posted by 19Fordy

No it's not a BOSCH Blue coil. It's the Pertronix coil 40001 that matches the Pertronix conversion kit.
https://www.amazon.com/PerTronix-400...a-568782789506

I understand that; I was proposing a solution.

drolston · 07-05-2022, 03:47 PM

Quote:

Originally Posted by tubman

Bosch Blue Coil?

Ditto on Bosch Blue. Probably a fluke that the Pertronix coil failed. They are a good product but overkill for a flathead.

19Fordy · 07-05-2022, 10:32 AM

tubman, Thanks. I appreciate your suggestions and knowledge. Here's some interesting about BOSCH BLUE COILs.
https://vwparts.aircooled.net/12V-Bo...p/00-012us.htm

When I bought the Pertronix kit (ML-181)it came with the Pertronix coil # 40001 with 1.5 ohm primary resistance. I not using a condenser or a ballast resistor.

My distributor is a Mallory YL 2527501 Series 25 dual point unit converted to a Pertronix using their ML-181 kit. Pertronix told me to use their Flamethrower 1.5 ohm coil, not the 3 ohm coil.

The more I read, the more confused I get about what coil is the correct coil to use with my Pertronix.
Additional thoughts welcomed with open arms.
Thanks, JIM

Tim Ayers · 07-05-2022, 11:06 AM

Quote:

Originally Posted by 19Fordy

tubman, Thanks. I appreciate your suggestions and knowledge. Here's some interesting about BOSCH BLUE COILs.
https://vwparts.aircooled.net/12V-Bo...p/00-012us.htm

When I bought the Pertronix kit (ML-181)it came with the Pertronix coil # 40001 with 1.5 ohm primary resistance. I not using a condenser or a ballast resistor.

My distributor is a Mallory YL 2527501 Series 25 dual point unit converted to a Pertronix using their ML-181 kit. Pertronix told me to use their Flamethrower 1.5 ohm coil, not the 3 ohm coil.

The more I read, the more confused I get about what coil is the correct coil to use with my Pertronix.
Additional thoughts welcomed with open arms.
Thanks, JIM

My understanding is Petronix needs a 1.5 ohm coil. I would suggest calling their help line if you are unsure. I've found then to be very helpful.

tubman · 07-05-2022, 10:42 AM

All I know is that I purchased one when they were on special for my engine test stand. (Most of the engines I test run are 12 volts.) It has worked fine for me.

sidevalve8ba · 07-05-2022, 10:50 AM

Check on Ebay for the Bosch coils. Sometimes you can find a deal on there for them. But like almost everything else, I am sure they have probably gone up!

Bored&Stroked · 07-05-2022, 10:51 AM

Looks to me like you have it in a place where plenty of air can get to it . . . so, I'd probably just buy 2 replacement coils and keep one in the trunk.

As it is matched to the Pertronix ignition (their recommendation) - would run what they recommend, otherwise you may experience other issues (like a failed ignition component).

07-05-2022, 10:03 AM	#2
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 12,132	Re: My COIL EXPLODED You probably don't want to hear my answer.

07-05-2022, 10:04 AM	#3
Lawson Cox Senior Member Join Date: May 2010 Location: Above the gnat line in Georgia Posts: 7,119	Re: My COIL EXPLODED Go back to stock and get a Skip Haney coil. My 2¢ __________________ Life is like a roll of toilet paper. The closer to the end, the faster it goes. It is better to be seen, than viewed. "We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm".

07-05-2022, 10:06 AM	#7
JayChicago Senior Member Join Date: Jan 2019 Location: Chicago Posts: 1,028	Re: My COIL EXPLODED Or maybe an internal short caused the excessive heat. Why not just replace the coil? Probably will never happen again. Maybe replace with a regular coil cuz your flathead can never make use of that 40,000 volt boy-racer coil.

07-05-2022, 10:10 AM	#8
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 11,916	Re: My COIL EXPLODED Thanks for the answers. I know Tubman is a points only guy. The distributor is a Mallory dual point with mechanical advance so I could go back to points. Who makes good high quality points?

07-05-2022, 10:10 AM	#11
TJ Senior Member Join Date: May 2010 Location: Napa,California Posts: 6,773	Re: My COIL EXPLODED I had two of those fail in the last year. Won't buy any more and know others who have had problems also.

07-05-2022, 10:13 AM	#12
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 12,132	Re: My COIL EXPLODED Bosch Blue Coil?

07-05-2022, 10:32 AM	#16
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 11,916	Re: My COIL EXPLODED tubman, Thanks. I appreciate your suggestions and knowledge. Here's some interesting about BOSCH BLUE COILs. https://vwparts.aircooled.net/12V-Bo...p/00-012us.htm When I bought the Pertronix kit (ML-181)it came with the Pertronix coil # 40001 with 1.5 ohm primary resistance. I not using a condenser or a ballast resistor. My distributor is a Mallory YL 2527501 Series 25 dual point unit converted to a Pertronix using their ML-181 kit. Pertronix told me to use their Flamethrower 1.5 ohm coil, not the 3 ohm coil. The more I read, the more confused I get about what coil is the correct coil to use with my Pertronix. Additional thoughts welcomed with open arms. Thanks, JIM Last edited by 19Fordy; 07-05-2022 at 10:49 AM.

07-05-2022, 10:42 AM	#18
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 12,132	Re: My COIL EXPLODED All I know is that I purchased one when they were on special for my engine test stand. (Most of the engines I test run are 12 volts.) It has worked fine for me.

07-05-2022, 10:50 AM	#19
sidevalve8ba Senior Member Join Date: May 2013 Location: Harrisonburg, VA Posts: 950	Re: My COIL EXPLODED Check on Ebay for the Bosch coils. Sometimes you can find a deal on there for them. But like almost everything else, I am sure they have probably gone up!

07-05-2022, 10:51 AM	#20
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,906	Re: My COIL EXPLODED Looks to me like you have it in a place where plenty of air can get to it . . . so, I'd probably just buy 2 replacement coils and keep one in the trunk. As it is matched to the Pertronix ignition (their recommendation) - would run what they recommend, otherwise you may experience other issues (like a failed ignition component).