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Drive alignment, toe in or toe out?  How much? >

Drive alignment, toe in or toe out? How much?

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Drive alignment, toe in or toe out? How much?

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Old 03-26-2009 | 05:00 PM
  #21  
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On a twin engine vee spinning in, the props attempt to walk down the vee created in the water by the hull. This is why "in" give bow lift. This also causes the props to try to walk towards each other. In this case set the toe "in" at 1/8". That is the shaft tips closer than the nose tips.

For spinning out on a vee, reverse everything above. That's how it is boys on vees.

BT
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Old 03-26-2009 | 05:36 PM
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From: Frankfort,ill
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Originally Posted by AO31
Yes I do. I guess torque has a way of moving things!
Absolutely
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Old 03-26-2009 | 06:03 PM
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Originally Posted by blue thunder
On a twin engine vee spinning in, the props attempt to walk down the vee created in the water by the hull. This is why "in" give bow lift. This also causes the props to try to walk towards each other. In this case set the toe "in" at 1/8". That is the shaft tips closer than the nose tips.

For spinning out on a vee, reverse everything above. That's how it is boys on vees.

BT
Thanks for the clear info there, now I think i understand "why" spinning in raises the bow.

What I do not understand is what causes the ill low speed handling many folks are concerned about when spinning in?

Greg
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Old 04-16-2009 | 03:49 PM
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any ideas on a triple set up?
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Old 04-16-2009 | 04:24 PM
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Originally Posted by tomtbone1993
any ideas on a triple set up?
The center one perfectly straight the the outhers toe in about 1/8 of an inch !!!!
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Old 04-16-2009 | 05:00 PM
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Originally Posted by point92mach
What I do not understand is what causes the ill low speed handling many folks are concerned about when spinning in?

Greg
My take on it is that whichever drive is in reverse,
prop thrust is being thrown upward against the
transom in the area between the drives, thus
reducing useable thrust.

I've found that trimming the drives up slightly
past positive helps a bit.....it helps route the
thrust back under the boat.
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