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I also wonder if the two valve rods are original as they are just plain rods so no means to adjust the valves by nuts. Maybe a previous...

can you take a piece of wire and see if the openings at the ends of the round HP valve chest (1) are linked to the ones at the ends of...

Most models tend to use Bronze or gun metal for the slide valve. As room is limited it is more likely to be the type with adjusting...

modern ones are usually stamped out You can still buy the single chamfer fully machined ones, I use them on all my engines in metric...

There are a few models that do have pressure relief valves rather than drain cocks. The most popular is the Boulton triple expansion...

Question is what equipment do you have to mak ethe missing parts and have you made anything like them before

The eccentric most likely drove a feed pump which would top up the boiler to replace what was used in the form of steam It is not a...

I tend to use Loctite 648 which was the higher temp option but 638 is not much different now

If doing the external thread towards the chuck just leave the end facing the tailstock untouched, but a runout groove before the...

A good rule of thumb when setting the timing on a steam engine is that the high spot of the eccentric leads the crank by 90deg plus 30...

You don't click the picture. Copy the url from where you are hosting them Click the insert image icon Click the right hand link icon...

You could possibly take a 0.040" off the stub shaft of the gear and loctite a hardend drill rod sleeve over it. Or as that may make the...

Click the insert image icon and then select "by url" on the right and then paste your link

He did not use a redundant or "waste" spark. In a similar way to how the rocker arrangement opened alternate exhaust valves a similar...

Although there is only a single push rod the valve gear is on a rocker so although the pistons move together alternate cylinders fire...