Home › Forum › Ask A Member › 1951 Johnson QD12 lower unit won’t drop › Re: 1951 Johnson QD12 lower unit won’t drop
Well it’s finally out……Using the ATF/acetone treatment last night along with vice grips and a hammer (thanks Chinewalker) which originally didn’t work with the PB Blaster etc… it finally came out. I’m now a firm believer in the 50/50 method.
Jim,I had a Snap On tool similar to the one your picture. Used it for getting the studs out of Porsche crankcase’s. I should look around for a collet that go over the splines for the future. Would have to make some sort of attachment to it for s slide hammer.
What’s interesting is that the drive shaft did not have the o ring or cutout for one on the shaft? It shows one in the parts breakdown. I know the earlier QD’s didn’t have one but with the QD 12 they changed it. Maybe the factory had a few of the earlier ones hanging around when they built my motor?
Next question, I know it’s not the space shuttle but should I be worried about the marring on the shaft causing stress cracks?
With the hundreds of pounds of torque this motor (ha) puts out I wouldn’t want it to crack out in the middle of the lake next summer.
Thanks again for all of the suggestions.