[Fot] Spit/GT6 Gearbox problems expanded

[Jim]

And... Are the single rail gearboxes any better than the three rail?  Anyone
on list running a single rail in their Spitfire/GT6?

I remember at one point Kas has said the 3 synchro 3 rails had bushings on
the laygear, which held up better than the needle bearings.   

If it's all covered in one of Kas's books then I guess I should put my money
where my keyboard is ;)

Cheers,

Jim
Dallas

-----Original Message-----
From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On
Behalf Of Norlin Engineering
Sent: Wednesday, February 11, 2009 12:28 PM
To: britbits at netzero.com; fot at autox.team.net
Subject: [Fot] Spit/GT6 Gearbox problems (was SVRA allows 5 speed
transmission conversion!)

>From my experience running a GT6 box in a Spitfire, the two biggest 
>problems
are the looooong throw from 2nd to 3rd and the slow synchro's, but those are
problems relating to lap times.  The only mechanical problems I've had with
the box are related to the 3rd gear retaining clip (always install a new
one) and tearing up synchros.

Jim Norlin

-----Original Message-----
From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On
Behalf Of Jim
Sent: Wednesday, February 11, 2009 9:54 AM
To: fot at autox.team.net
Subject: Re: [Fot] SVRA allows 5 speed transmission conversion!


Out of curiousity, what's the weak(est) link in the Spitfire/GT6 gearbox?
Mainshaft bearings?  Laygear needles?  ??


Cheers,

Jim
Dallas



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