[C320-list] Neutral or Reverse

[Quentin Murphy]

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



************************************** AOL now offers free email to
everyone.
 Find out more about what's free from AOL at http://www.aol.com.