Ferrari Mailing List: Re: Transmission / Shifter question

[Mike (themightytoe]

I can't say it is bad for a transmission but anyone who has had any decent
training on a racetrack knows hands go at 9 and 3 or 10 and 2.  They only
leave to shift or to cover your head right before hitting a barrier.  And in
a driving school to signal someone to pass you (I always tried to avoid
doing that one).

Mike



-----Original Message-----
From: Hans E. Hansen [mailto:FList [at] hanshansen.org] 
Sent: Saturday, February 23, 2008 7:00 PM
To: Mike Fleischer
Cc: The FerrariList
Subject: Re: [Ferrari] Transmission / Shifter question

Definitely concur with Jeff.  I've seen many, many trannies with
shift forks wore almost thin as cardboard from doing this.  Also
can be caused by something badly wrong in the shift linkage
(depends on the car......).  The syncro and the fork are made
of somewhat similar materials (usually....  ) and even with grease
in between, similar metals will tend to wear fast when rubbed together.
That's why metal-to-metal bearings (crank bearings, bronze bushings,
etc.) are always dissimilar metals.  The forks were never meant to
have continuous pressure on them.

Hans.

On 2/23/08, Jeff Greenfield <coyote [at] acme-ltd.com> wrote:
> I've rebuilt more than a few manual transmissions in my life.
>
> I don't think resting your hand on the shifter will cause any synchro
> wear. However, IT WILL cause excessive wear to the shift forks and
> this IMHO is a bad thing. I suppose worn shift forks could accelerate
> synchro wear.
>
> So, like resting your foot on the clutch pedal when not actually
> shifting is a bad thing, so is resting your hand on the shifter.
>
> All that said, it is kind of hard (on a 308/328 anyway) to rest your
> hand on the shifter (at least comfortably) in such a way to actually
> put pressure on it to cause this sort of wear.
>
> Does this clear things up any?
>
> Jeff
>
> Sent from my iPhone
>
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