[Fot] early TR3 input shaft question

[Kas Kastner]

Most of my engines has the bronze bushing and of course my TR-3, never a
problem.

*Never be beaten by equipment.*

On Tue, Aug 18, 2015 at 9:16 AM, Steve Yott <tr4 at wi.rr.com> wrote:

> Bob,
> I think you will end up with a "frankenbox" but it may work.  The early
> cars
> did use a bronze bushing in place of the caged bearing. The loads on the
> bushing or bearing in this area are not severe and I think a bushing would
> last a good long time but there must have been a reason for the change.
>
> The bearing outside diameter is 1.125" so you could make a bronze bushing
> to
> fit the hole in the input shaft and size it for a slight press in fit.  The
> inner diameter hole should be about .002" larger than the snout on your new
> mainshaft.  The issue and concern will be the total length and alignment
> with the gears.  I would gather all the parts, lay it out and do some close
> measuring to ensure everything lines up properly.
>
> Could work, good luck!
>
> Steve Yott
>
> -----Original Message-----
> From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of
> rkramer3 at austin.rr.com
> Sent: Tuesday, August 18, 2015 7:28 AM
> To: FOT
> Subject: [Fot] early TR3 input shaft question
>
> I have an early TR2/3 non-synchro first gear overdrive tranny that I am
> rebuilding. The mainshaft was trashed so I bought one on eBay but it is
> different in an important way. The old one was similar to the ones that I'm
> used to seeing in a TR4, the input shaft rides on a caged set of rollers on
> the snout of the mainshaft. This early one, according to the Moss catalog,
> takes a $39.00 bushing on a much smaller diameter bearing surface. It is
> also longer which I think is an important difference requiring an early
> input shaft that I don't have. Does anyone know if the diameter of the
> early
> style TR2/3 bushing mates up to the inside of the later input shaft
> diameter
> with the bearing removed? I figure I can trim off a bit of the mainshaft
> and
> bushing and make it work if the bushing mates to the later input shaft.
>
> Bob Kramer
> rkramer3 at austin.rr.com
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