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Stuart Victoria

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Jasonb:
I was kindly given this slightly started kit as a result of a thread about errors in the Stuart Victoria drawings over on ME forum so it was built more or less as Mr Stuart intended but with corrections rather than doing it as I see a Victoria could be but then again if going that far starting with barstock would be the more appropriate route :LittleDevil:.

Looking at the dates on my photos I first started on the main bed casting on 26th of Feb and today had enough done to see if the engine ran. There was some work already done but I have reworked quite a bit and also had to make a few missing bits from scratch so probably a similar amount of work to starting with a virgin kit.

In the video it is just running as a quick trial so no rings, gland packing or gaskets and the outrigger bearing or cylinder end of the bed are not held down so it starts to move about a bit at speed and knock but who wants to run them like that anyway when a slow tickover is as nice to watch as any clock or pendulum.

http://www.youtube.com/watch?v=polgK3S_HYo

emh:
Very nice, looks like when completed it will  equal or exceed the usual superior Jasonb standards.  Somewhere a set of Victoria castings is lurking in the dim recesses of my shop.

steam guy willy:
Hi , Good project to finish off ..  But why is the engine so long ??  Or is it to make room for extra parts like a governor  etc etc

Good to see we are all still busy with our projects !!

Willy

Jasonb:
I suppose that's one of the problems with spare part engineering. The Beam was the first to use the 1" x 2" cylinder & 7" flywheel. Andrew Smith then came up with the idea of using these parts as the basis for a model based on a small workshop engine he knew of.

So length of cylinder is fixed and the method of supporting the cylinder on "two bits of angle iron" requires a bit more length beyond the end of the cylinder. Cross head guides can't be much shorter as they need to accomodate the 2" stroke but the The conrod also shares the same length as the one on the Beam and could probably have been made 1" to 1.5" shorter and any less length in the bed beyond the main bearings would see the big end hitting the end of the bed. Plus the fact it's all a bit "heavy" and not the most finely designed engine.

So if "cast" legs were added to the cylinder as per Tubal Cains "Princess Royal" , the conrod shortened and so reshaping of the crank end of the bed done you could probably drop 2" off the overall length and still have several options for fitting a governor

Charles Lamont:
A long con-rod makes for an engine that will be smoother at low speed. It makes the valve events more even. If I remember rightly, the rocker driven valve on the Victoria also provides scope for altering the geometry to fully correct the valve events.

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