Home › Forum › Ask A Member › Johnson Flywheel with a stripped puller hole › Re: Johnson Flywheel with a stripped puller hole
Im assuming you are kidding, but for those that are not aware, NEVER do this!
OK…I’ll ask: why not? I wasn’t kidding…..but the post above about “flexing” makes sense.
The flywheel is really held in place by the taper fit between the flywheel and crankshaft. Those tapers actually lock/seize the flywheel to the crankshaft, which is why they are tough to remove. Trying to pull the flywheel off with one of those jaw pullers not only pulls up/flexes the outer ring of the flywheel, it is not pulling on the tapers which are locked together. Using the OMC puller pulls up directly on the tapers.
You can see how tough the OMC puller is just by looking at it, comparing it to something like a harmonic balancer puller. It is not just the puller plate that is tough, the OMC screws and washers are a tough grade as well. The puller drive screw is a very fine thread as well. Finally, the OMC puller disk/plate has a drilled hole for the large rod that is included in the OMC kit which allows you to hold the puller/flywheel in place while tightening the puller drive screw.
In short, the OMC puller is an absolute must for any technician or collector that frequently works on OMC outboards from the 50s to present….