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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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Jul 21st, 2025 | | | | Joined: Sep 2007 Posts: 59 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2007 Posts: 59 | I'm having trouble determining what regulator I have on my truck, the part # is P&D VR-117H.
I was under the impression the truck was still running on a 6-volt system, but after cleaning the engine compartment out I noticed stamped on my generator plain as day, 12V. So I'm trying to determine if the voltage reg, is also a 12v or do i need to replace. Thanks for any help | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Get a cheapy volt/ohm meter & put it across the bat or hot term on the regulator or horn relay. If it reads about 12 volts you have a 12 volt system. Start the truck engine & rev the engine a little above idle. The voltage should go to about 14.0 volts on a 12 v. system or about 7.2 on a 6 volt system. If this happens your system is working & you know which one you have.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jul 2007 Posts: 461 Shop Shark | | Shop Shark Joined: Jul 2007 Posts: 461 | What battery is in your truck and what year is your truck? A 12-volt regulator could be set down to 9-10 volts, I'm not sure how low that will go, but that level will severely over-charge a 6-volt battery.
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