Have different lengths
https://www.homedepot.com/p/DECKMATE-Marine-Grade-Stainless-Steel-10-X-1-1-2-in-Flat-Head-Phillips-Screw-20-Pieces-866940/319949427?source=shoppingads&locale=en-US&fp=ggl
Stator doesn't look bad to me, but I'm no expert. Don't see how putting it in the water causes the issue when it runs fine on a hose or in a bucket. If it was overheat issue it would take longer than that
Hey @racerone , @Texasmark maybe others have any ideas?
The relay is not your problem
The relay can be purchased at most any local auto parts store. Just lay it on the counter in front of a gray haired man/women and they can get you one.
To see if it is the relay, use a voltmeter and measure any injector. If you have 12V on them with key ON the...