I believe, because while sailing in fwd (dragging the prop along) there is
"negative thrust" on the clutch cone bearing surfaces, allowing the clutch
to slip. (when powering, the prop is instead pushing forward, loading
those surfaces) In neutral, the clutch cones are centred, freewheeling,
and are not engaging their mating surfaces, and in reverse, the mating
surfaces are engaged as they would be when actually powering in reverse,
with the prop's drag actually increasing the pressure on the mating
surfaces.
At least that's my theory... until corrected.
Mine rotates in fwd and neutral, not in reverse.
Dave
Message: 3
Date: Thu, 9 Jun 2016 07:43:40 -0400
From: Gary Russell <captnga...@gmail.com>
To: "C&C List" <cnc-list@cnc-list.com>
Subject: Re: Stus-List Kanzaki Transmission in forward or reverse
while sailing?
Message-ID:
<CABgkXPLMX_Nc=SZivwL=sgqchjwcuuh0k77cuxlhgfsbujq...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Why is the prop turning if you are in gear?
Gary
~~~~~~~_/)~~~~~~
On Wed, Jun 8, 2016 at 1:09 PM, Rick Brass via CnC-List <
cnc-list@cnc-list.com> wrote:
> The point is that the engine and any gears in the transmission are not
> turning, but the prop shaft will be rotating in the forward direction. So
> the clutch plate that transmits power to the prop shaft will be turning,
> with very light pressure between the drive plate and the clutch surface
> (which, IIRC, on a Kanzaki is a double ended cone?). That leads to glazing
> of the drive and driven plates, rapid clutch wear, and premature
> transmission rebuild
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