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1937 Six, 12 volt conversion - Which coil?
Just popping in
2019/8/15 15:09
From Marietta
Posts: 1
37 packard converted from 6 to 12 volts.

Runs with original 6 volt coil however, coil gets very hot!

Should I
use a 12 volt coil?

thanks much, gary

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Posted on: 2019/8/15 18:32
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Re: 1937 Six, 12 volt conversion - Which coil?
Forum Ambassador
2007/4/20 17:54
From Fresno CA
Posts: 15532
Most coils are rated at 6-8v and running at 12v, at the least you should have a ballast resistor in the wire between the ign sw and the coil. That should drop the voltage down to around 8v but there are different value resistors for the various brand coils. You could do a 12v universal coil with an internal ballast or try to keep the original coil and add the resistor separately. If the coil still gets hot then go to a modern 12v universal coil with built in resistor. For the 55-6 cars Packard used a resistor value of 1.40-1.65 ohms for the Delco coil and .665-.735 ohms for the Autolite coils. Napa has a universal resistor but their website gives no specs so do not know how it compares.

Posted on: 2019/8/15 20:03
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Re: 1937 Six, 12 volt conversion - Which coil?
Forum Ambassador
2007/5/20 1:34
From Bowral, Southern Highlands of NSW, Australia
Posts: 10373
G'day garylee,
to PackardInfo.

I invite you to include your '37 Six Club Sedan in the Packard Owner's Registry.

Posted on: 2019/8/15 20:14

"Out of chaos comes order" - Nietzsche.

'38 Eight Sedan 38's are great! (Sold July 2009)
'41 120 Club Coupe 41's the One! (Sold October 2017)
'48 2222 "Almost" Rolling Limo Chassis and Engine (Sold Sept 2019)
'50 Eight Touring Sedan(Sold Feb 2020)

Project Blogs:
'41 120 Club Coupe - Locked
Wade's Workshop - Locked
'50 Eight Touring Sedan

What's this? >>>>>> FAQ - Add your Packard to the Owners Registry
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