An ancient military motorcycle.
To remove a motorcycle flywheel requires closest a persuaded methodology with the hold up tools. Failure to salary keeping can denouement in the allotment breaking or worse, a ruined engine.
The Fitting is Tight
The flywheel is connected to the crankshaft in a motorcycle engine by literally existence impaled on the crankshaft itself. It is fix in settle by a woodruff major, which is in essence a Apartment lodgings collection of metal that keeps the flywheel in one put as it spins with the crankshaft rotation. Provided left to blameless the woodruff leading, the flywheel would quickly spin off the crankshaft due to gravity and centrifugal duress. So it is tightened down with a follower that screws onto the speck of the crankshaft arm the flywheel installs onto. This kernel has to be secured to a workshop tightness and sure impact flush to construct trustworthy it stays settle as the engine crankshaft spins.
Securing the Flywheel
Through the flywheel is locked onto the crankshaft with the securing follower, when you effort to loosen the securing seed with a socket wrench the unabridged crankshaft meeting Testament spin. What is needed is to secure the flywheel and crankshaft so that the secure seed can be loosened. Nearly all motorcycle engine makers fabricate a flywheel holding object for this tendency.
Whether you can't treasure a flywheel holding stuff, then you Testament occasion to somehow lock the flywheel so it can't spin. An cinch notion is a screwdriver, nevertheless many flywheels are trumped-up of aluminium and can bend or rupture easily under coercion from a metal screwdriver. Wood is a choice blocking news seeing it won't damage the aluminium.
Loosening the Nut
Once you retain the flywheel secured and stabilized, you can loosen the securing kernel. This can be done with a basic socket wrench. Construct confident you account the equitable socket extent or you Testament strip the peanut. When forced inward by turning with a socket wrench, the inside bolt will push against the crankshaft while the threads of the tool pull the flywheel in the opposite direction. The result will pop the flywheel off the crankshaft and loosen it for removal.The second tool centers on the crankshaft and pulls the flywheel off by its edges. This is not a good design because all of the pull pressure gets applied to a thin flywheel edge.
Use an impact wrench with the appropriate socket size to knock it loose. This avoids damaging a normal socket wrench with a hammer, and the entire force is centered on loosening the nut when you hammer the impact wrench.
Taking the Flywheel Off
Now that the securing nut is loose and removed, you would think the flywheel can just be pulled off, but remember, the flywheel has To possess a tight fit on the crankshaft. The fit was made even tighter over the woodruff key as the securing nut was tightened down. As a result, the flywheel will usually need some force to remove it. A flywheel removal tool is the recommended approach.
Flywheel removal tools come in two forms, a screw-in type that installs into the middle of the flywheel and the outside rim puller. The screw-in type is made specifically to the flywheel you have. Looking inside the flywheel center you will see threads; the tool screws into this socket. In the center of the tool will be a bolt that also screws inward against the crankshaft assembly. Memo that many Asian and European manufacturers custom metric sizes, so your engine may ideal possible want this socket measurement. Whether so, just get a single metric socket for your nut size at the local hardware shop.Sometimes, due to factory tightness the nut may be on the crankshaft very tight.
The flywheel can be frequently bent in the process. Too much bending and the flywheel can start to crack at the bending points. Gear pullers, commonly used for this purpose, cause the same damage.
Step Four: Post Removal
Once the flywheel is off make sure to place it and the securing nut in a safe spot. Too often the part is placed just to the side on a workbench. Then it gets bumped and falls onto a cement floor. A drop of only three feet can damage the aluminum fins on a flywheel easily. Prevention is cheaper and will keep your flywheel in good order for reinstallation.
