Flywheel key

[fixmyevinrude]

Key only sticks out about 1/16 max. Seems a little shallow to me. MODERATOR PLEASE REMOVE. accidently posted to early. Sorry

 

[flyingscott]

Is it a factory key from evinrude.

 

[GA_Boater]

Maybe it's normal when only you know what motor? LOL

How deep is the keyway in the flywheel?

 

[fixmyevinrude]

1988 Evinrude 150XP
Key seems a little shallow to me. Protrudes out about 1/16 of an inch. I have owned boat 1 year. Don't know history.

 

[racerone]

The flywheel key only positions it for proper timing.---The flywheel is driven by the locking tapers of the flywheel and crankshaft.----That is when there is a proper fit of the tapers and torque of the nut.------Many motors from 9.9 to 300 hp use the same key.

 

[F_R]

Of extreme importance is that the shaft and flywheel tapers be clean and dry, and you must use a torque wrench to tighten the nut to spec. Sorry, I don't know what that spec is.

 

[fixmyevinrude]

Thank you for the info. I have the Evinrude/Johnson Servvice manual so I'm sure the proper torque spec is in there.

 

[Fed]

It's good you have the manual as it will tell you the proper alignment of the key.

The flat face of the key should be parallel with the centre line of the crankshaft.
The flat face of the key should NOT be parallel with the taper as your's is in the picture.

 

[boobie]

Check your manual as to the proper alignment as it's important as is the proper torque.