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Old 06-08-2013, 09:46 PM   #1
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propshaft diameter Yamaha/Merc small shaft ?

Hi everyone,

Does anybody know the exact propshaft diameter of a Yamaha or Merc small shaft ?
Surprisingly I cannot seem to find it on the internet.
I need the diameter of the part with 15splines.

I need it so I could make a correct splined shaft for my own propbalancer...

Thanks, T.
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Old 06-08-2013, 10:31 PM   #2
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Cant you simply use a shaft ??
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Old 06-08-2013, 11:24 PM   #3
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Small shaft should be 1".

Big shaft should be 1" 1/4.
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Old 07-08-2013, 08:37 AM   #4
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Quote:
Originally Posted by OCRDA View Post
Cant you simply use a shaft ??
Yes, but I don't have one. I'm gonna make it myself... should be piece of cake

Quote:
Originally Posted by bigboy View Post
Small shaft should be 1".

Big shaft should be 1" 1/4.
Thanks !
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Old 08-08-2013, 09:53 AM   #5
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You don't need the shaft size, just make two cones that slid into the prop from either end and lock on the balancer shaft.
Just google prop balancer images and see what I mean.
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