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3.0 GL won't start.

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Kyle McCoy

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Was on the river, boat ran fine, headed home and wife's hat blew off. Slowed down, turned around, and at idle motor dies. Won't start, just hear starter spin. After some trial and error, found starter was good and all electrical good. Moved on to flywheel and took of the cover. No bad teeth, but the flywheel spins real easy either direction, and has play (bow to stern) of about 3/4 - 1 inch. Is this normal? Theres no rattle like something is broken, and nothing found in the bilge. All the teeth are intact on the flywheel as well. I just dont know if the flywheel is supposed to move that easy.
Boat is a 2006 Four Winns, 3.0gl (p I believe) - we had a wreck past year where the ball slipped off the hitch and the boat and trailer went into the back of our tow rig. Thanks for your potential help!
 
re: "The FLYWHEEL spins real easy???" The flywheel is over a foot in diameter and is firmly bolted to the engine crank shaft. Not usually moveable without a crowbar. The starter PINION is small diameter ( about an inch or so) and is connected to the starter motor and should spin freely and move back and forth.

What is "spinning real easy????" If pinion, you likely have a bad starter, if FLYWHEEL you have much bigger problems, one that I would have thought would have been associated with much noise, ruckus...and collateral damage.
 
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Yeah, it's the flywheel. There were no loud noises - it does occasionally die at idle (the carb needs cleaning.) I am thinking when the drive smacked the road in the accident it weakened the bolts somehow. Then as we ran it at WOT they snapped and that's why it wouldn't start up again.
 
Kyle McCoy said:
Yeah, it's the flywheel. There were no loud noises - it does occasionally die at idle (the carb needs cleaning.) I am thinking when the drive smacked the road in the accident it weakened the bolts somehow. Then as we ran it at WOT they snapped and that's why it wouldn't start up again.
Click to expand...

I am hard pressed to think of a scenario wherein the impact of a non running engine/drive with pavement would not result in more damage than just weakened/sheared mounting bolts between the flywheel and the crank. I would suspect cracks in neighboring cast metal housings...
 
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