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Long shaft or regualr shaft??.....
Posted: Fri Apr 18, 2008 7:25 pm
by Fishnsledder
I've been looking around for a 20 - 25hp tiller motor for my 16ft aluminum boat ( my ol' 7.5hp has it's work cut out for it). I found a 25 hp Merc but it's a long shaft,..... will it be fine?.... what are the advantages/dis-advantages of a long shaft as opposed to a regualr shaft?...
Posted: Fri Apr 18, 2008 11:22 pm
by Frazman
Disadvantages
will bottom out sooner in shallow water.
will create more drag in the water- more gas used.
will be a little slower do to the drag.
If it has a section part way down remove it and do what I did on a duck
boat that I use to have..
There should be a approx. a 6 inch section on your lower unit that can be removed.
Years ago I removed this section and took out the long drive shaft and
had a piece cut out of it... then the shaft was welded up and turned down
at a local machine shop then we re-installed it back into the lower unit
then reconnected to the motor without that piece.
It worked great for years......
Good luck
Frazman
.
Posted: Mon Apr 21, 2008 10:52 pm
by Peppino
I will add this, A long shaft has more bite. I use a 4.5 evinrude long shaft as a kicker on my 176 Springbok. On a calm day I can almost get 4 mph. I was also very impressed how it pushed my boat through the 4ft St-Lawrence swells.
Peppino