Mercruisers clunk or clatter into gear depending on your shifting style. At
other times you might be hearing engine miss, shutter noise, or some other
engine or drivetrain noise. Noises are hard to describe and even harder to
diagnose.

"Mike" wrote in message
oups.com...
I was wondering if anyone could help me determine the cause of a
knocking noise when i engage my prop in forward or reverse (1997
Mercruiser Alfa One outdrive). I gues I'm trying to determine if I can
pull the lower unit and replace worn parts myself or if I should bring
my boat to the shop.

Any advice or comments will be greatly appreciated.

Mike