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Old 04-20-2017, 05:00 PM   #11
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Originally Posted by mmwjr View Post
Regarding the potential spun prop, is the rpms shooting up but no increase in speed? Any smell of burnt rubber in the engine compartment at the rear of the engine? This would be a spun coupler.


Yes. It will take off normal, usually have tabs up(bow down), but once it reaches a certain point, Rpm shoot up, no increase in speed. Kind like slipping transmission in car. My good old buddy google says spun hub. I did not smell any rubber. It maneuvers fine at low rpm.


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Old 04-20-2017, 05:06 PM   #12
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Yes. It will take off normal, usually have tabs up(bow down), but once it reaches a certain point, Rpm shoot up, no increase in speed. Kind like slipping transmission in car. My good old buddy google says spun hub. I did not smell any rubber. It maneuvers fine at low rpm.


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Either spun prop hub or engine coupler with the first being more common. A prop shop can test it and repair it.
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Old 04-20-2017, 06:52 PM   #13
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WRT the spun prop hub..
Easiest way to determine if it's the prop is to make two alignment marks, one on the prop and the other the washer/nut assy. I used a small punch to dimple them both as I was in the water... Go for a short run, trying to plane at least once or twice. Check the marks. If they are out of line then the hub is spent...
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