On 9 May 2005 14:53:27 -0700, "
wrote:


Clams Canino wrote:
Spun prop hub.......... take it to a prop shop or get a new prop.

-W

wrote in message
oups.com...
I have a 1970 20 HP Mercury. The engine is running fine, but the
last
time we had it out something seemed to break between the engine and
the
prop. The prop will turn when the engine is running slow, but when
trying to run faster the engine revs and the prop won't turn any
faster. (Like a clutch is slipping.)
Any suggestions? .............. Thanks, John...


Thanks for the inputs, but, what is a "spun prop hub"? I pulled the
prop and the hub splines look ok...

Think of a double threaded insert - that is essentially what a hub is.
The hub is spinning properly on the driveshaft - what is happening is
that it is spinning inside the prop hub. The connection to the
driveshaft is fine, the connection to the prop isn't.

Later,

Tom