Will it damage a lawn mower engine if I start it with no blade installed?
September 26th, 2008
INV772 asked:
I have a lawn mower I picked up on the side of the road for free. Looks like its almost brand new and they said it ran but I’m afraid to start it with no blade installed. Could it possibly damage the engine if I did?
Powered by Yahoo Answers
I have a lawn mower I picked up on the side of the road for free. Looks like its almost brand new and they said it ran but I’m afraid to start it with no blade installed. Could it possibly damage the engine if I did?
Powered by Yahoo Answers
Tags: Blade, Lawn Mower Engine
7 Comments at "Will it damage a lawn mower engine if I start it with no blade installed?"
Powered by Yahoo Answers
not at all.
Powered by Yahoo Answers
when i buld engine i don,t have the blade on. so go ahead and started it up.
Powered by Yahoo Answers
You can run it without a blade. What would damage a engine is a blade that is badly off balance.
Powered by Yahoo Answers
You can start it to see if it runs, but don’t run it long without a blade. It may overspeed but I would be more concerned about the crankshaft balance provided by the blade. The blade acts as a harmonic balancer when it is installed.
Powered by Yahoo Answers
Hmm, no, you probably can’t hurt it. You probably won’t be able to get it running at all. The flywheel on push mowers is just aluminum, they use the blade to provide the inertia to keep the motor spinning on the compression stroke. An engine that is designed to run no-load will have a cast iron flywheel, to provide inertia.
Powered by Yahoo Answers
yes, it will. The engine is balanced with the blade on it. IF you run without the blade, the engine will (could) vibrate itself to pieces.
Powered by Yahoo Answers
you need a blade on it to start. the blade is the balance for the engine