Well I just did the work, Tomguy pointed me in the right direction.

Thanks again !

That was my gut feeling, but not an expert with small engines so I didn't think to check this.

I'm getting there though, thanks to the help from the folks up here.

Thanks

kk

__________________
KLK, MCSE

1990 500SL

I was always taught to respect my elders.
I don't have to respect too many people anymore.

According to the part #s via (partsTree) the key for his engine is the same as the my engine and I have a spare.

BUT Why not use a steel key?

Not questioning, just wondering.

__________________
KLK, MCSE

1990 500SL

I was always taught to respect my elders.
I don't have to respect too many people anymore.

First, you will have a hard time finding a steel key to fit the flywheel. A Briggs key is not square, it is rectangular, both in length and cross section.

The purpose of the aluminum key is that it can be sheared if the blade strikes a solid object, protecting the flywheel.

With Tecumseh and Lawn Boy engines of older vintage, hitting a solid object would upset the steel key, and also crack the flywheel, necessitating its replacement.

It's not just the flywheel that needs the protection. You can also destroy the crankshaft.

Well it's running, pretty nice too.
Doesn't shut off ??
Ok either we missed a wire or the iginition key is bad.
Idle is still rough, so bring down to full idle and it dies.
We can fix that later.

Tomorrow it gets it's first run, he's gonna do my lawn
Then another oil change, want to make sure we get any remaining grit from the honing. Cleaned it as best as we could, but I still would rather not risk it.

I had a B&S key I bought for my tractor and didn't use, I reused the original on mine.
I sware it was steel, and moon shaped.
It's belt drive to the deck so hitting something shouldn't lock it up that bad.

Thanks for all the help and support.

__________________
KLK, MCSE

1990 500SL

I was always taught to respect my elders.
I don't have to respect too many people anymore.