The secret to getting the three set screws out without breaking them is to
hit the head of the screws with a sharp blow of a hammer. they will then
turn out like butter. If not, hit them again. It works every time.
Ron
ReK Racing
----- Original Message -----
From: Bill Kelly <bk54@erols.com>
To: Patrick Baize <speedracre@netzero.net>
Cc: Spitfire List <spitfires@autox.team.net>
Sent: Sunday, November 14, 1999 11:00 PM
Subject: Re: Gearbox top cover
>
> Pat,
>
> 3-rail gearbox top cover disassembly is straightforward. I believe all
> operations are performed with the unit upside down on a bench.
>
> First you need to punch out the endcaps at both ends of each rail. There
> are angled holes drilled from the bottom of the top cover casting, that
> let you get a punch behind the caps. All you need is a hammer, and of
> course an appropriate diameter punch.
>
> Next, loosen the 3 square-head set screws that hold the selector forks
> to the rails. The heads will want to break off. You don't want them to!
> Be very gentle. If you do snap one off, don't go on to the next step
> till you've loosened all 3. Yup, we're talking easy-out.
>
> Slide the rails out the front end. WARNING! There is an interlock
> arrangement between the shafts, involving two ball bearings and a pin
> through the centre shaft. Do one of the outer shafts first. A bearing
> will drop out after an inch or 2 of shaft movement. (if you remove the
> centre shaft first, both BBs will fall out at about the same time,
> you'll catch one of them, and the other one will roll away). WARNING!
> There are spring-loaded plungers that will want to fly out the round
> holes in the underside of the casting, once the end of the shaft passes.
> You don't want them to!
>
> That's about it, except to say that assembly is the reverse.
>
> Write back off list if you need any clarifications.
>
> Bill Kelly
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