Martin
I thought that you might like an update on the Bassett-Lowk Southern 2-6-0 Mogul that I purchased a while back. Well, you did warn me, and I took no notice, and so I have managed to lumber myself with an assortment of problems rather than a useful item of motive power.
It did turn out to be quite attractive in a somewhat rugged fashion -
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This version, as you can see, has the fixed headlamps and the very plain tender, so I have assumed it to be early in the production run. The cosmetic condition is excellent because the engine has been refinished by Chris Littledale of the Brighton Museum -
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The tender, as far as I can see, has not been refinished, perhaps because the transfers were not available. However, it is in very nice condition, and Chris has managed to match the colours very well.
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These engines have the Bing six-coupled mechanism, with the winder arbor on the right hand side of the engine. You did indeed warn me, and the first problem quickly reared its ugly head - clearances. The cylinders and valve gear are all just directly borrowed from the live steam version of the Mogul, and the strange Greenly-Walschearts valve gear is very wide. So my platforms are in danger of serious damage. Worse still, it is not just the valve gear which is wide - the steps on the engine and tender are also ridiculous, at about 75mm (for comparison, the widest bits on a B-L Compound are about 63mm). So on the first clearance trials, my ground signals were all swept aside.
I have to say that the engine is very well made, built to withstand the heaviest use. For example, the cab steps on the engine have a massive reinforcement soldered in behind.
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The pony truck and tender wheels are cast iron, as expected. But the driving wheels are nickel-plated cast brass, centre nutted, quite contrary to the catalogue description. Have you come across this on B-L engines before?
I was impressed by the clockwork motor -
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The standard of the mechanism build is first class - the mainspring is massive, the intermediate gear pinions are machine cut from thick brass, and the final drive pinion is machined in solid steel from the axle blank. So there seems to be very little wear in the mech.
There are two problems. First, the spring is very strong, and the winding ratchet is not geared, so winding is very hard work. I have arthritis in my hands, so this is not too good. As a temporary fix (bodge) I have bolted an extension to the wings of my winding key, which helps a lot.
Much more serious, is that despite hours of fettling, oiling, and checking the motion for stiff points, I cannot get the engine to run properly. It is all very strange and frustrating - in forward gear it is noisy, stiff and hesitant and runs very slowly. But in reverse it runs perfectly - smooth and quiet and very quick. As it stands, it is hopeless.
I expect that you may have some experience with these Bing motors - Do you have any suggestions? My Bing Precursor is older, and runs like a dream!
John