[C320-list] Neutral or Reverse

[bruceheyman at cox.net]

Bert/Quentin,
I've got the manual and I've looked at it but it just looks like a bunch of parts to me.  Thankfully I haven't had to take one apart and fix it!  I've always been fascinated how it shifts without making lots of little metal filings out of the gears.
Bruce
Somerset #671 SoCal
---- Quentin Murphy <qmurphy at sympatico.ca> wrote: 
> Bert,
> 
> I think it's time to purchase that Yanmar shop manual and examine the
> exploded view of the gearbox.
> 
> Quentin
> Celtic Knot #667
> 
> 
> -----Original Message-----
> From: c320-list-bounces at catalina320.com
> [mailto:c320-list-bounces at catalina320.com]On Behalf Of
> BAdams3491 at aol.com
> Sent: March 26, 2007 5:24 PM
> To: c320-list at catalina320.com
> Subject: Re: [C320-list] Neutral or Reverse
> 
> 
> Quentin:
> 
> 
> Don't ask me to explain this, but here is the  logic:
> 
> With the transmission in forward the propeller  shaft tends to turn
> clockwise, (viewed from the rear) . As a result, the shifter  spring tends
> to push the
> mating surfaces of forward large gear and drive cone  together preventing
> movement of the propeller shaft but the tendency of output  shaft to rotate
> tends
> to separate the mating surfaces because of the spiral  splines, leading to
> the
> potential for slippage. Whether it slips or not depends  on the through the
> water speed, the condition of the shifter springs and shifter  adjustment,
> and
> the characteristics of the propeller. Since the action of the  splines and
> the
> shifter springs are in opposite directions, if movement does  occur, it will
> be with the shifter cone continually engaged, leading to  unnecessary wear
> of
> the shifter cone and forward large gear mating surface.
> 
> Bert
> At Ease
> #442
> 
> 
> 
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