I am in the advanced stages of disassembly of a 1957 Johnson AD-11 7.5HP. This is my first ever attempt at working on an outboard engine. I am brand new to your organization so go easy on the "newbie"!!!
So far I've been very fortunate and have only found a bent shift rod along with the normal maintenance items. As I'm a newbie, I'm waiting on a flywheel puller so I can look at the magneto components. But, through the inspection port they look "like new".
One item that I noticed was when I drained the oil from the gear case. The first 1 ounce was clear water followed by aprx. 8 ounces of oil. I understand that water will sometimes work its way in due to worn components. My question is do I suspect the seal on the prop shaft, the seal on the drive shaft(by the water pump), both, or something I'm not considering.
Also, any info on replacing either of those seals would be appreciated.I see there was a special tool (301927) to pull the drive shaft seal (300599) but it does not appear to be available.
The prop shaft seal "seems" like it should slide off the prop end but it, and the gear case head and bearing assembly, seem to get stuck right near the end of the shaft where the shear pin and cotter pin holes are. It doesn't seem rough there, but then again I'm new at this.