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Author Topic:   Sport 13 motor
LarryP posted 04-30-2004 10:31 AM ET (US)   Profile for LarryP   Send Email to LarryP  
I have a 1971, 13 Sport with a step down transom (15" shaft" I had a 25HP Evinrude on it that I was not too happy with the speed. The transom is curved. I found a 40HP and when placed on the transom,the motor did not mount flush against the transom. Only the edge of the mount butted to the transom. The "newer" models have a straight transom. I was told by a mechanic that this will not work because there is not enough support because of the torque of the motor. I have not purchased the motor yet and would like any suggestions. Also, if anyone has a nice 40-50HP short shaft motor for sale that will work, I would be interested.
keltonkrew posted 04-30-2004 11:26 AM ET (US)     Profile for keltonkrew  Send Email to keltonkrew     
take a look at what I did....

I shimmed mine with aluminum.

go down to the completed photos and you'll see the motor mounting

keltonkrew posted 04-30-2004 11:35 AM ET (US)     Profile for keltonkrew  Send Email to keltonkrew     
also, others have used aluminum angle to run up the outside of the transom and on the inside with the bolts going through both pieces.

Do a search on transom build up and you will find some posts that have different options. I made mine after seeing these options. Very close to the others, but I modified slighlty.


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