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Cavitation height

Old 01-07-2020, 07:45 PM
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what are your opinions on the height of this motor? I had posted about an occasional thumping noise like hitting something. Im leaning toward it being a worn clutch but i also was advised it could be the motor height. It has hard steering to the left a bit which i heard can be a symptom. I just wanted to eliminate that before i tear into it.
Old 01-08-2020, 03:29 AM
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The first thing I would do, simply because it is simplest thing to try, would be to try it with the fin removed. Height doesn't look too bad, but a photo of it running in the water would be more telling.
Old 01-08-2020, 04:49 AM
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Originally Posted by Clinker View Post
The first thing I would do, simply because it is simplest thing to try, would be to try it with the fin removed. Height doesn't look too bad, but a photo of it running in the water would be more telling.

That sounds like a good place to start to me too.

Are you getting other symptoms that would suggest the height is off or is the clunk the only issue?
Old 01-08-2020, 05:28 AM
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Only a clunk or bump feel no sound really. And it steers harder to the left than right but a boat of this size(19') is new to me. No power steering.
Old 01-08-2020, 06:16 AM
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Run the boat with another person who can watch the engine shift lever while the motor cover is removed. If the shift lever moves at all or jiggles when you feel the bump, then the shifter clutch dog is jumping out of gear. Often the cause is wear on the gear and clutch dog lugs due to improper shifting, mis-adjusted linkage and cables, or worn linkage, control box, cable, and /or bushings which prevent the clutch dog and forward gear from engaging fully.
Old 01-08-2020, 11:14 AM
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I would also remove fin to make sure itís not thumping on top of the water. Also would check shift linkage as stated above. Third, I canít see the steering you have but if itís a side mount hydraulic steering then itís normal for it to be harder to steer in o e direction over the other. This is also true with mechanical steering, especially when the torque tab on motor is misadjusted or missing.
Old 01-08-2020, 11:25 AM
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Ill take the fin off then. Ill get to go fishing again b4 having to dismantle it.

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