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Bent YS 1.10 FZ crankshaft

Old 11-20-2007, 06:19 PM
  #1  
Tommy_Gun
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Default Bent YS 1.10 FZ crankshaft

Upon disassembly of my engine I found a slight bend that is visible without a dial indicator.
Is it worth it to try to straighten this bend?
Has anyone had any luck in this matter?
Thanks
Old 11-21-2007, 09:47 AM
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wiley0717
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Default RE: Bent YS 1.10 FZ crankshaft

I tried on an electric.......I got it close to straight but it robbed a lot of power with slight wobble
Old 11-21-2007, 03:31 PM
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Robbidos
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Default RE: Bent YS 1.10 FZ crankshaft

I gotta imagine you can't get it close enough to straight to not be a problem. I would simply purchase another and replace it.
Old 11-21-2007, 08:10 PM
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Troy Newman
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Default RE: Bent YS 1.10 FZ crankshaft

If its been bent it needs replacing. If you bent it to begin with it could have a stress crack in it. bending it back to near straight it will tend to make this worse


It can be very dangerous if the crank were to fail. Next is the engine will tend to not run properly and could damage other parts if it is run while bent.

Next thing is since it hit hard enough to bend the crank. It will need ot have new bearings too. These can be damaged and will fail in short order. A bearing failure can result in major major damage internal to the engine. Think Large bits of metal flying through the engine while it is running for a few revolutions...



Troy Newman
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