We picked up a (12 volt) Standard -no resistor required- UC15T oil filled coil. The oil does slosh around inside. Research suggests these cylinder types can cool better than epoxy filled when the terminals are facing up. The Model A's have the terminals facing down. Does anyone have concerns about this?
-
-
I have always mounted my coils facing up. Never had a problem. Right now I am running a 6v stock style coil with a resistor on 12v. The coil kinda likes it, has a nice little skip in it's step..png "smile")
I was just thinking and reflecting on my childhood and the Model As we owned, and I seem to remember one that was turned snout down leaking, but this was 50+ years ago.Last edited by DaWizard; 11-07-2017, 12:42 AM.You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command! -
I have always mounted mine like original.Comment
-
I've run into problems when mounting an oil coil upside down. I'd recommend keeping the wires pointing to the sky. Hmmm, I wonder if that would be the same in Australia [ smiley face]Comment
-
FSI in Oklahoma would agree with you 1000%
For whatever reason today's oil filled coils are not totally full. The windings go all the way to the bottom of the can, but not to the top. So, if you mount the coil upside down, the windings at the bottom (now the top) are not covered and the coil life will be shortened. This topic has come up before.
Use epoxy filled if you want to mount it Henry's wayLast edited by tbirdtbird; 11-07-2017, 06:35 AM.Comment
-
-
Thanks for the replies which appear to confirm internet and supplier info. Evidently the new oil filled ones allow the oil to expand somewhat when the secondary coil heats up while the sealed epoxy doesn't allow for adequate heat dissipation. I guess mounting up would be the way to go.Comment
-
Epoxy coils work just fine.Comment
-
Here's an interesting thread just located: should be able to open with adobe reader or acrobat.Comment
-
I've been reading that oil filled coils don't like running upside down. Aside from buying a more expensive style coil, has anyone ever mounted their oil coil facing tower up (in the same location), and running a longer distributor wire. And do the stock + and - wires still reach the coil without modifications? Our '29 is an everyday driver and not a points car. Thanks....08-20-2021, 05:30 PM -
I have read about the big no no about mounting a ignition coil, terminals down on Model A firewall. I have a NAPA 12V internal resistor mounted upside down for 3 years. Brother rumbles by with 72 dodge Demon , nice 340 , while looking around I noticed ignition coil bolted on its side to intake manifold , factory dodge design. the same coil that I am using exactly, He says its been there for 15 plus...05-12-2018, 06:18 AM -
Helped a mate with an electronic Efire crab dizzy today.
Would not go, after a couple of hours we found 2 things wrong.
Firstly the magnet drum had to be pushed right home to work and we could not get a 3 ohm coil to run.
Got it running on a 1.2 ohm coil.
Whether the 3 ohm one is dead or electronics don't like 3 ohms.
12 volt...12-24-2018, 12:50 AM -
Today I changed out my coil to the flame thrower 40111. My electric tachometer is hooked up to the coil. Now my tac is showing fast for some reason. Any idea why.09-09-2017, 07:11 PM -
HELLO I HAD A PROBLEM WITH A ELECTRONIC DISTRIBUTER SO CHANGED IT TO A POINT DISTRIBUTER . EVERYTHING WAS FINE FOR A WHILE THEN THE MAIN FUSE BLEW OUT AND THE COIL BURNED OUT . I PUT A GENERIC COIL IN IT AND IT WAS GOOD FOR ABOUT A 100 MILES AND IT BURNED OUT ALSO. IS TERE SUPOSE TO BE A RESISTER IN IT?. I AM USING A 12 VOLT SYSTEM WITH A ALTERNATER. THANKS08-15-2021, 12:36 PM -
Attached is a dwg. from the net that may be helpful. It also shows how to locate a condenser away from the dizzy and up at the firewall. If an oil filled coil is used, the diagram has the terminals facing up requiring a longer coil to dizzy wire....02-13-2018, 06:15 PM -
I am looking to purchase a coil other than OIL filled. I see that Summit Racing sells Per Tronix Ignition Coils which are EPOXY filled and Primary Resistance is 1.5 ohms with maximum voltage rated at 40,000 volts.
MY QUESTIONS:
How does this coil match up to the original coll in that it is filled with EPOXY and voltage rated at 40,000 volts?
What is the original coils maximum...10-05-2018, 03:32 PM -
Any pictures of where to mount the modern coil when using the coil conversion kit?...02-06-2019, 09:44 AM -
1930 CCPU converted to 12v. It has a NAPA coil. The coil gets very hot while running. Seems to run fine but I am worried something is wrong as I dont think it should get this hot.
The black wire in the picture is going to the positive terminal on the coil. Any thoughts?
...07-11-2021, 08:37 PM -
While prepping my 30 Coupe for a big car show next week and hoping to bring home the gold I noticed that both the coil and bracket on the firewall both looked a bit shabby and decided to give them a good cleaning and spruce them up a little. So, I grabbed the necessary tools and removed them both cleaned them up to be more presentable and then upon replacing the coil to the firewall I discovered...08-06-2021, 11:23 PM
Comment