Building a 31/2" Gauge Locomotive Engine

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sbwhart:
Nick

I'm following Curley's design, I've seen one or two different regulator designs this is the simplest, I've not given to much taught about fixing it in the boiler, I suppose you could seal it with a dab of boss white.

Cheers

Stew

Rob.Wilson:
Hi Stew

This is a great build ,i have the plans and a few of the castings for Rob Roy 3,1/2" G ,i must have ago at building a loco one day :proj: keep the photo's coming :clap:

Cheers Rob

NickG:
True, I'm sure there will be some sort of sealent we can use, it just doesn't seem the best design,

Another point is that when using it, there is a bit of flex in the rod that connects from regulator handle to the valve so it doesn't feel very positive when closed if you know what I mean, there's a bit of spring in it, suppose could get around this by having some sort of quadrant at the handle / lever end with a positive stop on it.

I prefer the sweet pea design and the one on another 5" gauge engine I had which has the valve situated external to the boiler where the handle is with a poppet type valve. Sweet pea doesn't have a steam dome but the other did, it collected steam from a pipe in the dome, transferred it back to the back plate and back to the front plate again. I am sure Curley has his reasons for putting the valve in the dome though, probably to give the steam a shorter route and less chance of condensation or something.

anyway, good work on that. I think I might have to lap the faces on mine and make sure the spring is strong enough too.

Nick

sbwhart:
Bin somewhat distracted this week any way got the regulator part finished as it got to fit on the boiler it will nead a bit of fetleing when the boilers built.

So her it is in the Closed position.

And Open

As its out of vew in the boiler i didn't bother with bling but its got it where it counts

Thats one struck off the to Do List

Cheers

Stew

NickG:
Looking good that Stew. :thumbup: Will you be putting anything on there as a stop when it's fully open? Presume it will start to close again after that if you kept turning regulator handle?

Nick

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