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Discussion Topic:
^Volt Starter
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wlobb |
01-30-2026 @ 12:36 PM
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Member
Posts: 69
Joined: Jul 2024
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Hi, I am still pretty dedicated to 6 volt positive ground in my '51 8BA. I have pondered moving to 12 volts, but to be honest I find something cool in keeping my Custom convertible as close to stock as I can keep it. I have no starting problem, but when the car is hot starting is always a little nerve wracking. From what I read it's because the old original starters get heat soaked. Cold, like down to 10 degrees she fires right up. Almost remarkably fast. Hot, she starts but you kind of wonder when. Sometimes the starter kind of seizes before the engine is running and I'm back to cranking again. I can rebuild the original starter but i have seen some nice after-market units, but when I look into them they all say 12 volts, even the one Dennis Carpenter has that looks like the original but it says 12 volt. Does anyone know of a 6-volt after-market starter the is less susceptible to heat soak-- or how do you guys deal with heat soak?
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carcrazy |
01-30-2026 @ 3:41 PM
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Senior
Posts: 2022
Joined: Oct 2009
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Once you have found a competent starter/generator builder, you can have your starter rebuilt professionally as either a 6V or a 12V starter with all new parts and it will be fine.
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wlobb |
01-31-2026 @ 6:02 AM
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Member
Posts: 69
Joined: Jul 2024
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Thanks, that may be the route I go. I think my headers contribute to the heat soak. I’m looking at solutions to that.
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JayChicago |
01-31-2026 @ 9:04 AM
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Senior
Posts: 566
Joined: Jan 2016
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Someone could probably recommend a rebuilder near you, but you left "from" blank in your profile.
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51woodie |
01-31-2026 @ 12:51 PM
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Senior
Posts: 570
Joined: Jan 2017
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The 6V starter on the 59AB in my '46 Super Deluxe Coupe started to get "lazy" when the engine was hot. Past experience told me that the armature can drag on the stator poles when the starter bushings wear too much. I took it to a local shop, the bearings and brushes were replaced, and it now works well hot or cold. I also picked up a spare starter at a swap meet that I had rebuilt for a spare.
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carcrazy |
01-31-2026 @ 12:57 PM
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Senior
Posts: 2022
Joined: Oct 2009
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To cutdown on under hood heat you can use an exhaust wrap kit such as this one offered by Speedway Motors. https://www.speedwaymotors.com/DEi-Titanium-Exhaust-Wrap-and-Locking-Tie-Kit-2-x-15,379562.html
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flathead48 |
02-04-2026 @ 3:42 AM
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Member
Posts: 334
Joined: Dec 2009
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I have had good luck with high torque coils in my rebuilds but heat is always your enemy.
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kubes40 |
02-04-2026 @ 5:34 AM
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Senior
Posts: 3600
Joined: Oct 2009
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Wlobb, when I used to run big block Chevelles, heat soak near the starter was a real issue. Solved by placing a piece of sheet metal, maybe .060" thick or so between the starter and engine block. On the Chevy engine, it was easily bolted to the oil pan rail. Perhaps you could do something similar? Think of that sheet metal as a small "radiator" of sorts.
Mike "Kube" Kubarth
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wlobb |
02-07-2026 @ 3:23 PM
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Member
Posts: 69
Joined: Jul 2024
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Thank you for this. That's exactly what I'm planning. I think I can make up something out of .14 ga.
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wlobb |
02-07-2026 @ 3:30 PM
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Member
Posts: 69
Joined: Jul 2024
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Thank you, I've been looking at these shields from Speedway. (photo below) Has anyone had any luck with these? Part of me thinks they'd hold heat in. I'm looking at a new Dennis Carpenter 6-volt starter with a modern Bendix. Then I can take my original to a good shop to rebuild it. Has anyone tried rebuilding the starter themselves? I'd really like to try it myself. I've rebuilt alternators etc., with good luck.
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