atomic 4 shifting in forward-- heavy vibes - Page 2 - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Gas > Atomic 4
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  #11  
Old 04-20-2009
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Quote:
Originally Posted by sailingdog View Post
My reason for thinking transmission and not prop is that he doesn't have any issues in reverse. A faulty prop would probably give problems in forward and reverse, would it not???
In most cases this would be a correct assumption. However, if the axle pin holes are worn a blade could "hang up" more in one direction of rotation than the other due to asymmetrical bias on the pin.
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  #12  
Old 04-20-2009
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Quote:
Originally Posted by Faster View Post
SD - in our experience with our ungeared martec, it always opened equally in reverse, but occasionally failed to do so in forward. We took to spinning the prop briefly in reverse and shifting to forward and rarely had that problem again.
Oh..

Quote:
Lasalle: do you or do you not have a folding prop on this boat???
Yes, see post 7... but it is probably a bronze folding prop.
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  #13  
Old 04-20-2009
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yes I do have a folding 2 blade prop
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  #14  
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yes it is a bronze 2 blade folding prop
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  #15  
Old 04-20-2009
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Quote:
Originally Posted by lasallehome View Post
yes I do have a folding 2 blade prop
Sorry Lasalle, missed that the first time.... SD was yelling at me!

I'm pretty sure your problem is indeed the prop. Try spinning it in reverse just before you go ahead, that usually deals with the problem. If the prop is badly worn (or the cheeks splayed) this makes things worse.
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