Husky 55 starter pawls

[2broke2ride]

Customers saw, husky 55. Starter pawls broke off. Anyone have an idea why? Found one broken completely and the other bent over which broke off when I tried to bend it back. Motor turns over free, I just worked on this saw for the guy, new fuel lines, muffler mod, sharpen the chain and dress the bar. It was running great. I dont even think it ran long enough to dull the chain I sharpened before this happened.
This is one of his ground crew saws that goes through hell.
Dont want to just throw a used flywheel on there to have this happen again but I cant think for the life of me what would cause this.

 

[dougand3]

I had a 55 flywheel like this last year. And if you can find pawls, spring, bolt...it's more than a used FW. I can only guess....pulley is worn in such a way that it seizes into pawls and ham fisted ground guy rips pawls to the moon? Above, 2 pulley teeth look rough.

 

[2broke2ride]

I'm gonna pull the muffler. I'm wondering if it seized then freed up when it cooled off.

 

[atpchas]

One solution:
https://www.theoempartsstore.com/starter-pawl-kit-husqvarna-503710203-630-022.html

 

[Huskvarna hotellgäst]

Hard to tell which went first but that pulley is going to tend to put all the load on the pawl engaged by the "good" tooth opposite the well-rounded one.
You've probably already checked the pulley and post for excessive radial and/or axial play. Barring you finding something else, I'd replace the pawls, pulley & possibly starter housing and check the user's starting technique .

 

[2broke2ride]

I think the broken, bent pawls chewed the pulley up a little. It looks worse in the picture than it actually is. I know for a fact the starter pulley was fine when I worked on this last.