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While mowing my friend hit a rock and it bent the the thing that spins, is there a way to replace that??? I tried hammering it to unbend it but failed to do so.

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If a rock was hit hard enough to bend the blade there is probably a shear pin/key that will need changing too.

There will need to be more information about the mower - Make, Model, Engine --
everything that will identify exactly what mower and engine is invloved.

The shaft bent too, here is the info you requested
Thanks!!

Craftsman
Model number: 917. 388562
Serial number: 042204M 010107
Briggs and Stratton engine.

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If the shaft is bent --- It will need some serious engine work - If you or your friend are good at engine work, fine, if not you may be looking at $ for repair or a new mower.

You might get better advice here -- Good Luck !

BKBrown said:

If the shaft is bent --- It will need some serious engine work - If you or your friend are good at engine work, fine, if not you may be looking at $ for repair or a new mower.

You might get better advice here -- Good Luck !

Click to expand...

Is the shaft the thing that comes right from the flywheel?

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BKBrown said:

I'm not familiar with that model number - sounds like a push mower with the blade attached directly to the shaft. If that is the case, the shaft goes directly into the engine and will need to be replaced.

Click to expand...

The blade is not directly attached to the shaft, I took it of already
Is there a way to change the shaft? I have another craftsman I can use for parts.

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Tikal said:

The blade is not directly attached to the shaft,

Click to expand...

Is this not a rear bag, 21 cut 4.5 hp push lawnmower... ?
If the blade was not attached to the crank shaft... what was it attached to?

:smile:KennyV

KennyV said:

Is this not a rear bag, 21 cut 4.5 hp push lawnmower... ?
If the blade was not attached to the crank shaft... what was it attached to?

:smile:KennyV

Click to expand...

No, I was saying the blade is attached to the crank shaft but it comes off of the crank shaft.
Is there a way to change the crank shaft?

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BKBrown said:

It is possible to change the shaft, but the engine will need to be taken apart and put back together.

Click to expand...

Could you give me some direction on how to change the shaft? Thanks for your help!!!

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BKBrown said:

If you have not had some experience with this type of thing and have the right tools, I would not suggest trying to do this yourself.

Click to expand...

Oh heck, BK...ain't this a do-it-yourselfer type forum?

First: Unbolt, unscrew, remove, or otherwise dissassemble everything that is attached or in the way of your bent part or part.

Second: Replace the bent part or parts with unbent ones.

Third: Reassemble everythinbg in the exact reverse of dissassembly.

Simple, ain't it? :laughing::laughing:


But to be honest, although I am skilled and have plenty of tools, I would hestitate to undergo this process on an inexpensive mower. By the time you add up the cost of parts, gaskets, etc. plus the time required, it is hard to justify the expense of repair. If it was a $450+ mower, maybe, but otherwise, not worth it.

Tikal said:

Could you give me some direction on how to change the shaft? Thanks for your help!!!

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Click to expand...

While it is most likely more involved than you will want to get into... changing the crank MAY become necessary...

If you are at the point of 'what ever it takes' to make this mower run again... Give this approach a try... you will not have much to loose, and I have seen this work more than once...
YouTube - ‪Brigg's $ Stratton bent crank repair redneck style‬‏
Just pay attention to what your doing and post back with your results... :smile:KennyV