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Re: Gearbox input shaft play.

To: "Spitfire List" <spitfires@autox.team.net>,
Subject: Re: Gearbox input shaft play.
From: "Luke Lewis" <lukage@home.com>
Date: Mon, 12 Mar 2001 15:30:56 -0500
When I got my car running, that input shaft bearing was toast... Upon
disassembly I found that the shaft had about 1/4" play (wobble) and the
pilot bushing was missing (Either due to the bearing wobbling it to death,
or it had simply not been installed and thus destroyed the bearing) ...
That's an annoying bugger to replace too!

luke
'71 Spit "Fireball" - only a week or so from release for the season!
'73 MGB "Furniture" - may and may not come out at all!

----- Original Message -----
From: "Douglas Frank" <frank@zk3.dec.com>
To: "spitfires" <spitfires@autox.team.net>
Sent: Monday, March 12, 2001 2:59 PM
Subject: Re: Gearbox input shaft play.


>
> David Armitage wrote:
> >
> > On taking the gearbox off the engine I noticed there is a little play
> > in the input shaft. It moves by about 1mm (at the shaft end)
> > perpendicular to the shaft, but there is little play pushing and
> > pulling towards the box. Is this usual. Also, can anyone let me
> > know where the shaft wears and how I can tell if this has been
> > causing the clutch drag?
>
> Don't shoot the messenger!  ...but it sounds grim to me.  One
> thing, you didn't say whether you'd already separated the gearbox
> from the bellhousing.  In any case, I don't think there should be
> any perceptible motion of either kind described.  With any luck,
> you may find the bearing is bunged up... but that's not likely,
> is it?  It's pretty hard steel.  Perhaps the *wrong* bearing was
> installed.  I'm just grasping at straws, here, because I don't
> want to be the one to tell you your gear case is shot: that the
> opening for the input shaft's ballrace is worn to an oval.
> Still, if that is the case, replacement gear cases are
> available... in fact, there were a couple up on ebay last week.
>
> good luck!
> --
> Douglas Frank Compaq Computer Corp.   Mammon, n.
> ZKO           110 Spit Brook Rd.       The god of the world's
> 603-884-0501  Nashua, NH USA 03062     leading religion.

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