BENT SHAFT: 3.5 horsepower Briggs & Stratton has a bent shaft.

[MowManWV]

I guess that's the end of that! The 20" Murray push mower a mowing client gave me has a bent shaft. I was fearful of that since it had this weird pull of the rope, like it was "catching on something" and the shaft itself (with blade removed) was very wet with oil. The blade itself looked really good though: no damage, only rust.

With blade off though, it's clear the shaft is not sitting in the center of the shaft tunnel.

I now know what to check first when someone gives me a mower!

I'll continue cleaning up the carb and gas tank...........I already have those off anyway.

Anyone have a good shaft laying around they don't want?

 

[Scrubcadet10]

engine model?
Ebay can be your friend for used cranks....

 

[Richard Milhous]

A few decades days ago I knew a guy whose main business was straightening bent mower crankshafts. I don't know how he did it.

 

[MowManWV]

My dad told me of a shop that straightened mower cranks without removing those from the engine.

I doubt anyone does that now.

The local landfill sells lawn mowers for $5.00. I might start checking there.

 

[bertsmobile1]

Ring around a few local repair shops.
Because you lot only use bar blades a lot of cranks get bent and B & S makes a crank straitener

 

[MowManWV]

engine model?
Ebay can be your friend for used cranks....

Engine model number: 9L902

How old is that you think?

*Nothing on ebay when searching that model number. Did find it on repairclinic.com for just over $100.00.

 

[Scrubcadet10]

796211 https://www.ebay.com/sch/i.html?_fr...esc=0&_odkw=Briggs+3.5hp+crankshaft&_osacat=0
shows, 2 cranks, but the old number was superceded to this number....
post the Date code of the engine, it's the longer series of numbers 9L902-xx-xxxxxxx

 

[MowManWV]

OK, let me do that.

9L902-0221 E1 04062952

 

[Hammermechanicman]

There is a tool for straightening cranks in the engine. I have one but haven't uaed it in years. Some folks use a hammer but i have never tried that method.

 

[MowManWV]

There is a tool for straightening cranks in the engine. I have one but haven't uaed it in years. Some folks use a hammer but i have never tried that method.

Where do you live? I can come to you and pay you for your time or bring whatever food/drinks you prefer.