The flywheel key is a rectangular metal peg that keeps the crankshaft and flywheel aligned when you tighten the flywheel nut. If the mower blade hits an object with enough force to knock the flywheel out of alignment, the flywheel key breaks, protecting expensive parts such as the crankshaft from damage. FLYWHEEL BRAKE The brake applies friction to the circumference of the flywheel helping to stop it quickly.
When the flywheel pops off put the saw down and finish unscrewing the flywheel nut.12. If you find it impossible to hold the saw up by the flywheel you can use a small pry bar or broad, flathead screw driver behind the flywheel to apply pressure but you run the risk of damaging other parts on your saw like the cylinder or case with the prybar. Align the flywheel keyway with the flywheel key.3.
what is flywheel chainsaw Related Question:
How does flywheel work on chainsaw?
The flywheel spins when the crankshaft turns, and when it’s stuck you won’t be able to use your chain saw. A chain saw’s starter rope connects to a pulley, which, through a recoil spring and two pawls, connects to the flywheel. The flywheel connects to the crankshaft through a thin metal piece called the key.
What is a chainsaw flywheel key?
The chainsaws use a flywheel key to hold the flywheel to the crankshaft, but quick engine stops can shear the flywheel key. The key is designed to break off to force the engine to shut off and prevent internal engine damage, but it must be replaced before you can continue using the chainsaw.
What is the purpose of a flywheel?
flywheel, heavy wheel attached to a rotating shaft so as to smooth out delivery of power from a motor to a machine. The inertia of the flywheel opposes and moderates fluctuations in the speed of the engine and stores the excess energy for intermittent use.
How much does a flywheel cost?
On average, flywheel replacement cost is anywhere between $600 to $1,100. You can save yourself a lot of coins if you did the replacement by yourself but only attempt that if you’re an experienced mechanic. If you have a friend or family member who is an expert, you could ask them as well.
How do you tell if a flywheel magnets are getting bad?
Be sure the magnet you are testing is rotated away from the magneto when testing takes place. Hold the screwdriver against the magnet, if the magnet pulls the screwdriver in, the magnet is fine. If it seems weak or does not pull the screwdriver in, the magnet needs to be replaced.
How do you start a stubborn chainsaw?
Try to start the chainsaw after priming the carburetor. 5. Activate the choke by moving the lever to the full choke position and pull the starter rope 3 or 4 times to start the engine. If that doesn’t work, move the choke lever to half choke and pull the starter rope, 6 times maximum, to start the engine.
What is the advantage of a flywheel?
The advantages of flywheel energy storage systems are high efficiency, high energy and power density, and long life. On the other hand, flywheels are more expensive and require more space than batteries and fuel cells. There are also some safety concerns about flywheels rotating at high speeds.
Why is it called a flywheel?
Answer: FLYWHEEL = Fly + Wheel or basically “A wheel that goes fast”. A flywheel is the main wheel of the motor, it used to be the one motor that turned and gave energy to all other belts. For safety many belts fly overhead where no one could be accidentally pulled through and killed.
Do all engines have a flywheel?
Every car has a flywheel. Flywheels are heavy metal disks, between 12 and 15 inches in diameter, with gear teeth cut into its circumference. They are attached to the rear of the crankshaft, between the engine and the transmission.
How long does flywheel last?
Everyone expects perishable parts like brake pads to wear out. But what about key engine components, like the flywheel? Experts say this expensive part should last at least five years, but reader David Arenstein of Kings Langley, Hertfordshire, is due his fourth one in as many years.
What happens if flywheel breaks?
If your flywheel is going bad, a smooth pedal is not what you will feel. You may feel vibration as soon as you place your foot on the clutch or when you press down on the clutch. The vibration tends to get stronger as you push on or engage the clutch pedal.
Where is the flywheel located?
Flywheel Location Your vehicle’s flywheel is always located towards the engine’s rear, directly between your engine and transmission. The housing completely encases the flywheel, so you won’t see the whole thing unless you remove the engine’s transmission.
What is chainsaw timing advancing?
A) By advancing the timing you are igniting the air/fuel mixture a little sooner. Q) How does this give more power? A) It takes time for fuel to burn so the spark always fires before the piston reaches TDC. In other words, the spark fires before the piston is finished with the compression stroke.
What causes a weak spark on a chainsaw?
A weak spark on a Husqvarna chainsaw can be caused by one of these misfiring components in the ignition system. Properly maintaining and cleaning the saw on a regular basis will prevent most spark issues. Most problems can be isolated easily and fixed with a few simple tools and parts.