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Discussion Starter · #1 ·
I have a Scag 48" walk behind and I need to replace the motor. The current motor is a Kawasaki FC-420V. I pulled the deck off to get access to the bottom side of the motor. The problem I have is removing the main shaft bolt that runs up through the electric clutch, pulley assembly and into the motor. The pulley and the top of the motor, the recoil starter, spins with the bolt when I attempt to remove it. It's almost like I need to stick a metal pin in somewhere to lock it so I can break the bolt loose. Can anybody help me out with this? There are four bolts that secure the motor to the frame and I guessing the shaft bolt needs to come out as well. I have attached a few pics. You should be able to see the main bolt that runs up through the pulley's.

http://www.flickr.com/photos/[email protected]/6844853508/
http://www.flickr.com/photos/[email protected]/6844852622/
http://www.flickr.com/photos/[email protected]/6844851896/
http://www.flickr.com/photos/[email protected]/6990977449/

 

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Welcome jjscott13. Let's see if we can help you with that.

On a smaller scale, I have a Honda walk behind with a blade brake clutch that does the same sort of thing you're describing. I have to take the recoil off the top of the engine to access the flywheel nut, put a wrench on it to hold it, then turn the bolt at the bottom end out.

I think an air impact wrench would do the trick too. If you have one, or access to one, you might try that. Or even maybe an impact driver.
 

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Discussion Starter · #3 ·
Welcome jjscott13. Let's see if we can help you with that.

On a smaller scale, I have a Honda walk behind with a blade brake clutch that does the same sort of thing you're describing. I have to take the recoil off the top of the engine to access the flywheel nut, put a wrench on it to hold it, then turn the bolt at the bottom end out.

I think an air impact wrench would do the trick too. If you have one, or access to one, you might try that. Or even maybe an impact driver.
That worked! I had taken the recoil piece off yesterday only to find a metal sleeve/disk underneath it. I guess I should kept going because two layers underneath that was the flywheel nut. Once I latched on to it, I was able to get the bottom bolt out.

Thanks!
 
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