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Rustyred

Starter motor mystery with Briggs and Stratton

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Rustyred

I need your advice pertaining to the part pictured below.

 

When I try to start my lawn tractor, the gear on the starter motor springs up as it should to start the engine. However, the starter motor runs without the starter gear turning! So I took it all apart. 

 

Should the white plastic part which the gear runs up and down on be fused to the  steel weight pictured??? Because right now the white part spins inside the steel weight. 

 

Could this be the reason the starter motor runs while the starter gear doesn't turn?

PXL_20240601_210342836.jpg

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ebinmaine

What model tractor?

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gwest_ca

Looks like you are missing the gear. The spiral is what forces the bendix upwards.

Engine numbers will help us help you.

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Rustyred

The tractor is a Murray 12.5 hp IC 40, with a Briggs and Stratton engine, model number 286707. (Built in 1994)

PXL_20240602_072157733.jpg

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gwest_ca

Toro used that engine but with different spec number

 

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gwest_ca

https://www.partstree.com/search/?type=model&term=286707

Select your specification number from the list.

Noticed the gear is different for steel or aluminum or plastic ring gears.

The part with the white plastic may be a roller clutch. Should turn only one way.

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Howie
Posted (edited)

The white part should not spin inside the metal part.

Edited by Howie
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