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Flywheel Mounting Flange Damage On Crank

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Old Oct 29, 2017, 12:19 AM
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Flywheel Mounting Flange Damage On Crank

so i started hearing weird noises from my gearbox and the gears was not going in . Removed the gearbox to inspect and found my flywheel bolts slack . Upon further inspecting , after removing the flywheel , i saw some arc marks on the flywheel and the mounting flange on the crank .
I am wondering if i should be worried and just have the flywheel face polished or should i replace flywheel and crankshaft ?

Flywheel Mounting Flange Damage On Crank-123-1-.jpgFlywheel Mounting Flange Damage On Crank-1234.jpg

Last edited by Doctro X; Oct 30, 2017 at 10:01 PM.
Old Oct 29, 2017, 09:43 PM
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Post pics of how bad it is? Most of the times this happens the crank is junk.
Old Oct 29, 2017, 11:35 PM
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As long as you can bolt the flywheel in and it allows proper torque and it sits flush i dont see a crank replacement.
Old Oct 30, 2017, 10:02 PM
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pics inserted ...
Old Oct 31, 2017, 07:50 AM
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Ouch. I would just attempt to smooth out the rough areas and keep on trucking
Old Oct 31, 2017, 09:27 AM
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Nope, crank is done. You can have it repaired (needs to be removed from the engine), oe pick up a new one.
Old Oct 31, 2017, 01:09 PM
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Bolt it back together, torque it up.......measure runout with a dial gauge.

The spec is in the manual somewhere.


If it's within spec and there's no cracks or anything silly.....it's OK.
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