[SEL] Austral 351

[michael young]

Patrick,

the purist in me says - to quote yourself - "Pull off the flywheels,
press out the problem shaft, align it and press then pin it in place."  But
the other woud work except if the misalignment was small and the key ways
(original and new) overlapped.

Hey its your choice.  A very nice engine and a wise choice. Congratulations!

regards,

Mike Young in Orange. NSW, Australia

On Sun, Oct 24, 2010 at 6:27 PM, Patrick Livingstone <
patrick.livingstone at gmail.com> wrote:

> This will be a nice engine when I get it going. It needs a few parts:
> Fuel pump and handle
> Crank guard (early style)
> Vaporiser
> Timing valve & linkages
> Carby (early style with central wing nut)
> Fuel valve & linkages as well as roller & pin.
> Air valve rocker & roller.
> If anyone has any bits lying around it would be a great help.
> The biggest mechanical problem is the crankshaft. If you look at this pic
> you can see two pieces of metal bolted onto the flywheel (across the
> spokes).
> http://www.oldengine.org/members/pml/myengines/austral351/351austral1.jpg
> I could not work out why they were there until I checked the alignment of
> the flywheels with each other. The sideshaft side flywheel is about 5
> degrees out of true. The pieces of metal must have been attached to
> rebalance the engine.
> This is the one weak point on Australs. The crankshaft is made up of 5
> pieces pressed together and occasionally one of the shafts will rotate
> leaving the flywheels out of position and therefore out of balance.
> There are two options to deal with this problem. Pull off the flywheels,
> press out the problem shaft, align it and press then pin it in place. The
> other option is to pull of the flywheel, weld up the shaft and cut a new
> keyway. Both are big jobs but both possible. Opinions?
>
> Patrick M Livingstone
> Leichhardt NSW
> http://www.oldengine.org/members/pml/Index.html
>
>
>
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