On Wed, 30 Jul 2014 19:48:07 -0400, "Mr. Luddite"
wrote:

On 7/30/2014 6:30 PM, Wayne.B wrote:
On Wed, 30 Jul 2014 16:04:17 -0600, H*a*r*r*o*l*d
wrote:

On 7/30/2014 3:43 PM, F*O*A*D wrote:
On 7/30/14, 5:35 PM, Tim wrote:
I ripped out the lower gear box on my 18' with an alpha1. I was
telling a friend where I was boating on a small lake, and he knew
where I busted it and told
Me I hit a stump. Sure the stainless prop was in damaged but at speed
he said it hit hard em ought that the hub didn't break loose, but the
lower took the hit. Fortunately I had a comparable lower from a donor
boat at home so I swapped it out and was going the next weekend. I got
lucky by having a spare...



Gosh, I sheared a shear pin on my Evinrude one cylinder outboard back in
1951 or 1952. Fortunately, I was able to put the oars in the oarlocks
and row back to the beach. Whew!

Anything more recent?

===

I wonder when they stopped using shear pins, and why? When I was a
kid back in the 50s we all knew how to change out a shear pin using
simple tools onboard. No need to row ashore unless you were
unprepared or untrained.



I was just looking that up because I was curious also. The rubber
"cushioned" hub was introduced in the mid-1950's and started replacing
the shear prop designed systems. One benefit of the rubber hub is that
you can usually get back to shore running at a low RPM in the event you
"spin" the prop. Been there, done that.

With bigger boats, spare props are a must. The Navigator had a spare
pair of 30"-30P's in the engine room.


===

We carry a pair of spare 30 inchers also. They're heavy and take up
a fair amount of room but when you need them, great to have onboard.
It can take a week or more to get new ones, and then there's the
delivery issue if you're in the boondocks. A good diver can change
them out underwater.