Outboard motor shaft length
Submitted: Monday, Jan 18, 2010 at 22:33
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Member- Tony C
I have just bought from a neighbour a Brooker tinny with a Johnson 7.5 outboard. I noticed the shaft length of the motor is a fair bit longer than the boat transom. Transom height is about 390mm. Outboard from the transom bracket clamp to cavitation plate is 450mm or 17.7''. I thought shaft length would be either 15'' or 20'' not half way between.
Just wondered if any one knows if this motor is a long or short shaft? Thanks.
Tony
Reply By: BarryMcKenzie - Tuesday, Jan 19, 2010 at 01:24
Tuesday, Jan 19, 2010 at 01:24
Gday Tony, an outboard mechanic from a good boat
shop would be able to tell you what sort of outboard it is if u give them the model #, serial # and year model.
A rough guide when setting an outboard onto a transom is to start with the cav plate lining up with the bottom of the transom where it meets the hull....sounds like you may have to lift yours with a block or similar. I used a piece of square 40x40 alloy tube between bracket clamps and transom top and it still clamps
well onto transom. hope this has been of some help cheers.
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