"the flywheel key was made of steel and had destroyed the flywheel. The crank is ok but the flywheel is fractured. "

People keep saying, "Check the flywheel key" on LBs and I keep saying this is what happens, typical.

I think any of the late model "C"s will fit but if you can locate a post by Tinkerer, Bill Dils, he will know and MIGHT even have one he will part with.

Walt Conner

Thanks for the reply.

I wonder if i can make a pot metal key when or if i find a replacement flywheel.
I take it this was a common problem with this family of engines?

Jeremy Stone

Squarenutt,keep us posted if you did or didn't find one. I have a local contact that may have one.

"I take it this was a common problem with this family of engines?"

No, not particularly. But sure more common than sheared keys.

I wouldn't worry about it or bother it, just don't cut pipes, large tree roots, etc. and do tighten the flywheel to the proper torque.

Walt Conner

I did get it back up and running with the damaged flywheel but it bothers me. I have visions of a potmetal grenade going off under there.

Theres got to be someone around here with a backyard full of old lawn mowers. The only problem is that if i find him my yard will likely soon fill up too. With my wife its stray animals with me its poor derilict machines.

Thanks for the advice.

Jeremy Stone

Here is a link that might be useful: My HomeSite with some mower pics

I actualy got very lucky thursday. I played hooky from work a few minutes and stopped by the local metal recycler. Within 5 minutes I found the mangled corpse of a very similar lawnboy. They had used the claw to unload it from someones truck. The engine had been ripped off its mount and the deck was crushed. Luckily the flywheel escaped unharmed! I used a heavy something to liberate the engine from the remains of the deck and took it up to the scales to purchase it. They weighed it and it came to 25 lbs. Turns out it was a buck a pound. I didnt have that on me so I went back with a wrench this morning and took it apart. I not only got a flywheel but also the aircleaner insert, screens and retaining ring! $3. I must say that even the very damaged deck of the dead mower was surprisingly tough.
Even made it to work on time...

Stone and Sons

Here is a link that might be useful: Pics of other old 2stroke stuff (click the gremlin)

Does anyone know where I can get an 18" blade for my yellow C76 Lawn Boy mower?

"Does anyone know where I can get an 18" blade for my yellow C76 Lawn Boy mower?"

I don't have access to a OE catalog. They are not available after market specifically for Lawn Boy but in looking thru the Stens catalog, I found some 18 " straight blades that had a 5/8" center hole and I see no reason one of these would not work.

Kees/Snapper was one I remember specifically.

Walt Conner