[SEL] Sydney Rally

[bill at antique-engines.com]

Sideshaft - typically the camshaft runs the "length" of the engine from
the crankshaft area up to the head/valve area. The cam is usually driven
by a worm gear or similar arrangement (to get the right-angle drive)
So rather than a long push rod mechanism, the cam runs the valve more or
less directly.
Side shaft because the shaft to run the valving runs along the side of the
engine.
More expensive to manufacture, better design.

Of course some nimnodes on eBay list their "horizontal shaft" B&S engines
as sideshaft engines, too! Geesh! Those are not sideshaft, they are quite
simply "horizontal crankshaft" or simply, horizontal shaft engines,
nothing special unless you are looking for a minibike or go-kart
engine......

Will get to your other message later - just found it - we get over 200 +
SPAMs a day now, and the filtering is less than ideal. Will be switching
to some anti-spam software soon. I have a bad feeling that we are losing a
lot of messages in the fray.

Bill

> I noticed the head on the side of the
> cylinder and the shaft and gearing in this photo. Is this what is
> considered
> a side shaft engine. If so, I've never seen one, but this picture made it
> quite clear. Thanks and....
>
> Regards,
>
> Jeff Allen
> Arvada, Colorado USA
>