Long shank OK?

[handirifle]

I hope this in the right forum, but here goes. I have a friend that's going to give me a 15hp 2 stroker (don't recall brand) that has some running issues (cause(s) to be determined later) and I was toying with the idea of sticking it on my little 12ft alum boat. It currently has a short shaft 6hp, which is fine. The 15hp is mostly for "just to see" but my main question, is this. Is there a reason I cannot use a long shank motor on this little boat, other than requiring it to be run in deeper water?

I know it's not ideal, but will it cause any real problems? The other thought is to fix it, sell it or trade for another short shank motor.

 

[Home Cookin']

Re: Long shank OK?

it won't do any damage to run a long-shaft motor but it will affect performance some. You will need to test run and adjust the pin setting, as the longer shaft exagerates the trim angle of the motor.

 

[Mel Taylor]

Re: Long shank OK?

Generally it is best to match the motor length to transom length but, having said that, IMO it depends on the boat. Here is a thread from 2009 that discusses this very issue:
http://forums.iboats.com/showthread.php?t=350218

 

[handirifle]

Re: Long shank OK?

Thanks for the link. I read the thread, and one other. good feedback, and will see if it might be worth it to raise the transom the extra 5".