This was already an old timer s trick when i first heard about it a long time ago.
Piston stop rope trick.
You ll need a good quality piston stop to get the job done right.
The rope trick is a technique you can employ to prevent your crank from turning.
To perform the rope trick unscrew the spark plug from the spark plug hole and begin feeding a long piece of rope or something similar into the cylinder the idea is to fill the cylinder with enough rope that the piston is not able to reach tdc top.
There could be several reasons why you may want to remove valve springs with the head s installed on the engine.
Rope works great as long as you follow what hittinstihl said.
The next video is starting stop.
It worked obviously but despite the fact that i moved the piston up the cylinder before i put it in our attempts at working the damaged thread tightening and loosening the clutch obviously took the piston.
The rollers on the rod and wristpins are not designed for being used as a stop.
Thats why tools are like sex cant have enough and while ya may.
The rope thing yes i spotted on here that if you ve got to beat the clutch to get it off then don t use a piston stop use a nylon rope.
You feed the rope into a cylinder through a spark plug hole turn the crankshaft by hand to raise the piston up compressing the rope against the top of the cylinder.
Our top dead center stops come in your choice of brass billet or steel and with anodized zinc plated or natural finishes.
Try the rope trick.
If you get your hands on one of the metal screw in peg type piston stops don t use it on the smaller homeowner grade saws or you might puncture the top of the piston.
However the plastic piston stops work just fine too.
This tool stops the piston from moving which in turn makes it much easier to work on engine components connected to the crankshaft such as the flywheel and clutch drum.
Replace a broken valve spring replacing valve seals.
Trust me on that one.
It is effectively an economical replacement for a piston stop.
Don t have a piston stop or don t want to drop the cash on one.
Summit racing has a large selection of piston stops from innovative products of america proform parts comp cams crane cams and more.
That and the correct tools are just to cheap and handy try the rope trick when changing a shaft coupler and you will see why.
Holding a motor with rope above the piston to prevent turning over.
So you stop the piston on a 225 v the torque on the nut is rather high.