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Angle engine or u joint

Old Marine Engine » One and Two Cylinder Gas Inboards » Angle engine or u joint « Previous Next »

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narrabay
Member
Username: narrabay

Post Number: 10
Registered: 02-2016
Posted on Monday, February 15, 2016 - 04:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I'm contemplating the upcoming project which is install an old single cylinder in a 11.5" dory style hull.

One recommended option is the Palmer YT and that calls for no more than 4" per foot ofg shaft angle which is about 18 degrees.

It's a pretty short hull so I can ionly have 3ft or so of prop shaft. That will require an angle fairly close to the max.

A thrust bearing/thrust bulkhead is possible and a u-joint which would allow for a fully level engine. And that would look really nice. but thats a LOT of stuff to get rusty and have issues with over time.

I wonder what the consensus is on engine angle vs flat with the gear to allow that?

one other idea I had was to build a shallow tunnel to bring the prop up a few inches and would also make launching/retrieving easier

both options are going to be some amount of work of course!
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bruce
Senior Member
Username: bruce

Post Number: 523
Registered: 07-2002
Posted on Monday, February 15, 2016 - 09:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

It sounds like 10 pounds of stuff in 5 pound bag. Like the line in the Jaws movie "yer gonna need a bigger boat" Otherwise find a 3 hp Copper top Waterman or Arrow two stroke that would do just fine in the dingy dory.No shaft angle trouble with the two stroke other than the carb riding level.My little skiff putt uses a wee-small Caille canoe motor
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narrabay
Member
Username: narrabay

Post Number: 14
Registered: 02-2016
Posted on Monday, February 15, 2016 - 12:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I think the hull can handle a couple hundred lbs of engine/gear no problem. I also would not be averse to a hull that is a little larger.

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