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You should pull the head off to see how bad it rusted up so you don't waste your time. If it is only lightly rusted clean up what you can and put the head back on and fill the cylinder with penetrating oil or Marvel Mystery Oil and let it sit for a few days then work the crank back and forth until it breaks loose.
What else can I help you with?
What happens if water gets in lawn mower engine?
If the water gets into the cylinder head, it could create rust on the valves, cylinder liner(s), piston(s) and piston rings, causing the engine to "lock up".
Where are the valves located on a 17.5 hp Briggs and straton riding lawnmower engine?
Is it an OHV engine? If so they would be loctaed above the piston head on your mower.
Why is their oil in your carb of lawn machine mower?
There is too much oil in the crankcaseWorn out valve guidesWorn out piston ringsBlocked engine breather
What are the possible reasons for a lawn mower emitting blue smoke?
Blue smoke coming from a lawn mower could be caused by burning oil, a clogged air filter, or a problem with the engine's piston rings.
Why does your Briggs and stratton lawn mower blow blue smoke and oil?
Worn piston rings. Incorrect weight engine oil. Gasoline mixed with engine oil. Crankcase overfilled with engine oil.
What is the probable cause of no compression on my Tecumseh lawn mower engine that hasn't been used in several years?
Could be several things or a combination, most requiring an overhaul or replacement of engine. Piston rings are shot, piston shot, valves burnt, broken or bent.
Ware is a the governor on your riding mower?
There are 2 long "wires" with springs on them attached to the carburetor. One goes to the governor which looks like a small lever that comes out of the engine. If you are thinking of disconnecting it to make the mower run faster - DON'T DO IT!! You will be risking a blown piston rod and lots of internal damage to the engine.
Why is my lawn mower emitting blue smoke?
Blue smoke coming from a lawn mower usually indicates that the engine is burning oil. This could be due to worn piston rings, a damaged cylinder wall, or overfilling the oil reservoir. It is important to address this issue promptly to prevent further damage to the engine.
What causes a lawn mower to throw gas out of exhaust?
bad piston rings
What does flooding your engine on your lawn mower mean?
It means the engine has been fed too much gas. If you depress the gas pedal on a car or truck many times before you start it, the same thing will happen. A gas engine, whether it is a small lawn mower engine or a truck's engine works the same. It needs a certain ratio of gas and air in order to create the explosion in the piston chamber that makes the engine work.
What could be causing blue smoke to come out of my lawn mower?
Blue smoke coming out of a lawn mower could be caused by burning oil in the engine. This may be due to overfilling the oil reservoir, a worn piston ring, or a damaged valve seal. It is important to address this issue promptly to prevent further damage to the engine.
Why does my lawn mower spark plug have oil on it?
Oil on a lawn mower spark plug can be caused by a few reasons, such as a worn piston ring or valve seal that allows oil to leak into the combustion chamber. This can lead to poor engine performance and difficulty starting the mower. Regular maintenance and checking for leaks can help prevent this issue.
