Quoting Removed, click Modern View to see First the qualification: I'm not a degeed EE, but I do motor and electronic work professionally, and have seen exactly what you are describing.
Yes, you can change the brush position and slow the starter, but the current will not really drop much, which just makes the starter far less efficient with the energy provided (more heat than movement). Universal motors are designed A LOT different than a starter (a lot more poles on the rotor and more field windings), even if the same basic principles apply.
I just had my 6v starter rebuilt with 12v field coils - not that it wouldn't work at 12v when I converted the electrical system, but the bendix was shot (and I was hand cranking it a 6v) long before it had the chance to be "abused" at 12v. Cold weather made the starter fix a necessity.
Maybe the extended cold weather cranking necessary at 6v ruined the bendix. I know it does a lot better now at 12v. :)
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Today's Featured Article - Show Coverage: Argyle and Mt. Pleasant Labor Day Weekend Shows - by Cindy Ladage. The last fling before summer fades into fall and we get busy in the fields are the annual Labor Day tractor shows. Beginning on September 5th and running through the 7th, the Argyle Antique Gas and Engine Show is held at the Argyle State Park. Located in West Central Illinois, the pine forest was the setting for the opening of the 22nd show. This year we decided to try to sell a few tractor parts, literature and wrenches to offset my husband's buying sprees. Saturday
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