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Hitting a rock can certainly cause some damage, depending on the size of the rock. Most commonly, the shear pin in the flywheel keyway will bend or break (it is made to do so) and the engine won't start or will be hard. Not as common is for the drive shaft to bend or break, or internal damage to the engine.
What else can I help you with?
How to Repair lawn mower engine?
Buy a lawn mower engine repair manual at Border's or Barnes & Noble.
How do you put a V8 engine on a lawn mower?
very gently, or the mower will get squashed
Where is the oil filter on a lawn mower?
depends on the engine but it will be on the engine block.
From the same distance away what does the jet engine sound louder than a lawn mower?
The sound of a jet engine vibrates more than the sound of a lawn mower.
Why does a jet engine sound louder than a lawn mower?
from a distance away why does a jet sound loader than a lawn mower
Lawn mower pull cord?
The pull cord of a lawn mower is used to manually crank the engine to get it started. As the engine is quickly turned, a spark is created which begins combustion.
What is the energy conversion of a lawn mower engine?
A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.
Why won't cord pull out on Weedeater lawn mower with Briggs and Stratton engine?
Check the underneath of lawn mower for grass built up.
Is it possible to put a snowmobile engine in a lawn mower?
Yes, it is !
What makes the blades on a lawn mower work?
The engine, I think
What does it mean when a lawn mower engine sputters?
it needs gas
What would hitting a tree stump do to a push lawn mower?
a gas mower i take it, you can bend the shaft, shear the keyway, and twist the shaft,
