bassin0331
Active member
About to order an etec for my 1448 grizzly, it has a 17.5 inch transom. Do I need to order the 15" short shaft or the 20" long shaft
Thank you for your help sir was just nervous about dropping. 3300 dollars and it not being rightPappy said:This subject has been covered numerous times.
To start with the proper way to measure a transom is not to lay the tape measure along the transom surface from top to bottom and come up with a measurement. The transom is at an approx. 15 degree rearward angle so that measurement would be incorrect.
The proper way to measure a transom is to use a square off the bottom of the boat and measure at 90 degrees from the bottom to the top of the cut out in the transom.
Secondly.....no engine manufacturer makes a "true" 15" engine. They are simply short or long shaft.
No two engine manufacturers make the same size short shaft. A Johnson/Evinrude will measure differently than a Mercury, Yamaha, Suzuki.....etc.
To further complicate this, no two boat manufacturers will make a true 15" transom as you have just witnessed. Transom measurements are all over the board.
Do your proper transom measurement as stated above and go on with life! Pop your engine on there and go run it. Start with the trim pin all the way in against the transom and move out until you get what you want. Move weight around with each change.
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