Fixing spun propeller - outboard

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RJJ

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Hi all.

Pratting around pulling the kids on the SUP using the tender...and I caught the rope and the prop is "spun".

Once I get hold of the replacement bush, is this a job I can do? Or do I need to pay a pro?

Engine is Yamaha 6hp 2str of indeterminate age. I can add photos if necessary.

Many thanks indeed
 
Usually you buy a new prop when the bush is no longer bonded.. Look on ebay as can usually find cheap used ones..
You cant just change the bush.. On larger hp engines newer props have removable hubs but not on a small older engine
 
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RJJ said:
Hi all.

Pratting around pulling the kids on the SUP using the tender...and I caught the rope and the prop is "spun".

Once I get hold of the replacement bush, is this a job I can do? Or do I need to pay a pro?

Engine is Yamaha 6hp 2str of indeterminate age. I can add photos if necessary.

Many thanks indeed
Click to expand...
Are you sure you have a spun hub prop? I would think it more likely that you have sheared a pin on a small two stroke. I know my Johnny Rude of a similar size has spare shear pins stored under the tank cover. If pins in short supply just file down a brass screw to fit the hole in your output shaft. Pin usually found under prop after removal.
 
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RJJ said:
Thanks, I will have a crack at taking it apart and look for a shear pin.
Click to expand...

I think you will find that the propeller is splined onto the shaft and not driven by a shear pin.
The parts catalogue does not show a replaceable hub

1630359433431.png1630359584493.png

Some 5hp models have a shear pin #49 in this diagram
1630360338222.png
 
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VicS said:
think you will find that the propeller is splined onto the shaft and not driven by a shear pin.
The parts catalogue does not show a replaceable hub
Click to expand...
Thanks VicS. In which case, what do you think I need to fix/replace, and is this feasible for a beginner (or should I engage a pro??). Many thanks
 
a company called steel developments ltd offer rebushing on aluminium props, but they make it clear that they give no warranty if they do it because it is hit and miss. The big prop they rebushed for me worked well. It's probably uneconomical on a little prop, it may be cheaper to buy 2nd hand
 
I goaded one forum member into trying to cast his own bush using the two part stuff sold to make car suspension bushings. It was certainly initially successful. I'll toy and remember some keywords and have a search.
 
anoccasionalyachtsman said:
It was @Boathook in this thread Yamaha Malta Prop

Maybe he'll give us an update?
Click to expand...
The malta outboard didn't get much use last year and this year is no better ..... It still has the repaired prop on it and no known issues so far and it has had some use this year.. To be honest I had forgotten about this until my username was flagged up on the notifications bit.
 
RJJ said:
Thanks VicS. In which case, what do you think I need to fix/replace, and is this feasible for a beginner (or should I engage a pro??). Many thanks
Click to expand...
Remove the split pin, undo the nut and the prop will slide off, buy replacement prop and reverse the process to reinstall, you may need to use a piece of wood to stop the prop spinning while you do the nut up.
 
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northwind said:
Remove the split pin, undo the nut and the prop will slide off, buy replacement prop and reverse the process to reinstall, you may need to use a piece of wood to stop the prop spinning while you do the nut up.
Click to expand...
lightly greasing the spline before fitting the new prop
 
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