longshaft motor on a short transom?

ddavis90325is

Seaman
Joined
Sep 16, 2005
Messages
62
What are the potential problems of running a 20" shaft motor, on a 16" deep transom? Can i make some sort of plate to elevate the motor a little bit more and raise it up? Would a stabiliazion plate help so i wouldn't need to elevate the motor? Thanks in advance!
 

Chinewalker

Fleet Admiral
Joined
Aug 19, 2001
Messages
8,902
Re: longshaft motor on a short transom?

Definitely do NOT use a stablizer plate! Those plates work best when just out of the water while the boat is on plane. If you run them completely submerged they do all sorts of quirky things to your handling...<br /><br />Worst case scenario - motor performs poorly, throws water into the boat, suffer poor mileage, drags the bottom frequently, and puts great stress on the transom with added leverage. <br /><br />Best case scenario - motor runs fine, performs fine, minor issue with fuel mileage, you have a really strong transom that can handle the added stress, and you run in deep water with no danger of hitting bottom.<br />- Scott
 

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: longshaft motor on a short transom?

I run a 1975 9.9 long shaft on a 13' short shaft transom tinny with no problem.
 

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,778
Re: longshaft motor on a short transom?

The name of the game is drag. If you aren't going very fast it shouldn't be a big deal. Course you are 4" closer to the bottom and logs and stumps and all.<br /><br />Mark
 
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