Posted by Steve@Advance on March 17, 2019 at 15:39:02 from (66.169.147.211):
In Reply to: Re: Voltage regulator posted by Grandpa love on March 17, 2019 at 07:15:05:
Grandpa, if you are trying to keep it factory original, as in for show purposes, or if you just want to keep it original, then stay with the 6v system. Your choice.
But be ready to spend more money. The 6 volt batteries are known for only lasting a year or two. The Optima batteries are supposed to last longer, but more expensive and would not be original.
For a 6 v system to function, everything has to be right. A healthy engine, clean fuel system, well tuned ignition system, good starter, large gauge cables, and a properly functioning charging system.
The charging system is the catch. The generator can be repaired if needed.
It's the regulator that will likely be the problem. All the new regulators are generic, fit-all, imports. The original regulators were much better built, and built to match the generator exactly. It is beyond feasibility to even attempt that now, the shelves would be loaded with regulators that may sit there for 50 years! So you take what you can get, and expect it to go bad in a very short time.
The alternative is to convert it to a 12v alternator, with negative ground. Simple, cheap, and dependable. The battery will now match anything else as long as it will fit in the box, no confusion when jump starting.
There are some drawbacks.
It will no longer be original, but you can save the parts, just in case...
Some models, depending on how rugged the starter is, and how many times a day it gets started, have starter problems. The 6v starter will slam the gear into the flywheel harder operating on 12v. Some handle it well, some don't. If your starter, or flywheel gear is already worn, it may finish it off. Also be sure the timing is not set too fast causing kick back, and always wait until the engine is stopped completely before hitting the starter again if it kicks out when cranking.
There are a couple of other alternatives, but they get pricey.
There are reverse polarity 6v alternators. More dependable than a generator, and lets it stay 6v positive ground.
There are alternators disguised inside a generator housing. Keeps the original look, but with the dependability of an alternator.
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