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Old 28 July 2021, 15:39   #1
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Am I missing something

Evening gents. I bought a used suzuki df 15 4 stroke 2010. After about 45 mins use. I started to have issues. I think it's spun prop. So I ordered a new prop that has turned up but the inner splines are longer so the Bush will now not fit. Any ideas.
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Old 28 July 2021, 16:49   #2
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Is the bush you say won't fit the one in the last image? When you took the old prop off where was this... at the nut end or gearbox end? If at the nut end was there a similar stepped brass bush at the gearbox end as well and if so has this gone on OK with the new prop?

I assume the new prop is an aftermarket.... which brand?
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Old 29 July 2021, 02:25   #3
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Hi Fenlander, yes that's the one in last pic. It was just behind castle nut. Yes an ally Bush on the other end went on fine. Its a solar prop.
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Old 29 July 2021, 03:56   #4
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I've had a look around images of Suzuki and aftermarket props and it seems nearly all OE Suzuki have the need for that spacer at the nut end... and many/most of the aftermarket ones have a longer internal bush construction so you only need the washer and nut. Also on other fitment aftermarket props I've had they've come with their version of that rear spacer already pressed tight into the end looking like a fixed part but it's actually a separate spacer you can pop out. Could that be the case with your new one?

In any case I'd fit and not worry.

However the prop you think is spun looks decent condition so worth checking and keeping as a spare. You can bench test by putting a long bolt through the splines, tightening up well and clamping the bolt in a bench vice. Then try and spin the prop blades round the hub with your hands.
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Old 29 July 2021, 07:20   #5
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Hi Fenlander thanks again. Are you saying that if rear Bush is not fitted. Then fit castle nut and don't worry that the split pin is not between turrets.
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Old 29 July 2021, 08:56   #6
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In pic two on the first post it looks like there will be sufficient engagement of the split pin in the turrets?? If you wanted more just get an extra stainless washer.
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Old 29 July 2021, 14:48   #7
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Thanks very much Fenlander. That's a weight off my mind.
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