Re: Flywheel Removal

[Pete]

To be safe with all that torqued in pent-up energy in the puller I always loosen the main crank shaft nut but leave it in place about 1/8"or so above its full tight position. Flywheel with puller attached can and do fly off quite dramatically once popped. On my 22 c.i. Mercs the flywheel is on with 65 ft lbs and it takes 80 – 90 ft lbs to get it to pop, and it sounds like a gun shot 😯 and sometimes I think something broke 😆 Make sure the puller shaft is centered in the crank shaft lathe center with the cone shaped tip. I use a regular auto harmonic puller like this with big flat washers and two – 1/4-20 bolts threaded in deep with a puller base parallel to flywheel plane, the puller is quite hefty:

https://www.amazon.com/OEMTOOLS-27187-H … nic+puller