Home › Forum › Ask A Member › Two stuck flywheels › Re: Two stuck flywheels
Pry the flywheel upwards with a crowbar, forcing the flywheel to lift, then smack the crank shaft real hard with a big hammer, preferably with the flywheel nut in place. This usually loosens almost all stuck flywheels. But there is an overwhelming risk of shattering the flywheel, so do it cautiously. And if you do decide to try, don’t blame me if it breaks something.
Welllll, I wouldn’t say hit it "real hard"! 😮
Just a sharp rap is all you need. Its the vibration that does it. If you build a "knocker" it will help. Essentially a bolt, with 2 nuts on it. THread the first nut on, then thread on the second, so that about half the threads are still there, then back the first nut back down tight against the first.
The thread this onto the crank, gives you something to hit other than the crank itself. Pry up on the flywheel, then sharp raps with a hammer. Don’t need to wail on it like you are driving a nail though!
But, the flywheel puller should do it on that 3 with ease. Im surprised you cannot buy grade 8 bolts there?
I had a 60s 40hp once that was on real good. I have an OMC puller, had to put a 3′ extension bar on the handle, and a 3′ extension bar on the wrench on the puller bolt, and have me and my wife pull in on the bars to get her to pop!
