Garden Railway Forum

My whistle could sound like a wet fart when running on steam!

Hopefully not though as the whistle design isfrom the original plans and there have been hundreds of this type built.

The next step was to make a Goodall valve, I had been borrowing one from the large De Winton. I took down the dimensions. I'm not using an o-ring.
I reused a boiler pressure test blanking off plug, drilled it through for 3/16" K&S brass rod and silver brazed it in.
Finished valve
Fitted

Great job on the Goodall valve Dave. It looks a big improvement on the original dare I say.

Have you tried your whistle yet mate....let's hear it please...

The valve is very similar to the Roundhouse type.

tom_tom_go wrote: ↑Fri Aug 09, 2019 9:04 am The valve is very similar to the Roundhouse type.

Great minds I think Tom

FWLR wrote: ↑Fri Aug 09, 2019 8:44 am
Have you tried your whistle yet mate....let's hear it please...

Here we go Rod



It wouldn't work on steam yesterday. So today I had a brainwave, try it on compressed air (car tyre) and at a low rate it sounded fine then and then rapidly blew out as the supply was opened up. Ah ha, I needed a restrictor. A piece of 1/16th tube was placed inside the whistle's 3/32" inlet tube and Hey Presto! It worked at all flow rates. The steam test has the restrictor fitted. The car tyre is at about boiler pressure - 30 psi, it just needs pumping up afterwards

I think you've cracked it there, Dave. Sounds really good with that slightly breatheless effect. Well done.

Dave that's absolutely brilliant.....

It's actually one of the best I have heard....

Good work on the Goodall valve and the Whistle. More noise from less steam seems counter-intuitive clever of you to work that out.

Don

Bang on Dave, I like how the whistle sound gradually changes when the condensate clears.

Thank you, lads.

A rolling road will be needed for the next round of testing. It was very pleasing, I had all the materials in stock. This spacing suits nearly all of my locos except the first one, and it fouls the meths tank a bit. I'm thinking of adding an extra set of holes for closer spacing for that loco.

Had a very nice test of Loco #1 on the rolling road today. It's been a while since this loco last ran

Another great sounding whistle!

tom_tom_go wrote: ↑Thu Aug 15, 2019 9:42 am Another great sounding whistle!

My first. I've got a soft spot for it

Has posted on Youtube Dave.

Still nothing wrong with saying it again......


She is running more than well Dave, she’s running absolutely fantastic. Well done

FWLR wrote: ↑Fri Aug 16, 2019 6:04 am Has posted on Youtube Dave.

Still nothing wrong with saying it again......


She is running more than well Dave, she’s running absolutely fantastic. Well done

Thanks Rod. I'm loving the rolling road

Here's loco #2, check out this whistle Tom!

LOVE IT Dave....The whistle is just like you say...PERFECT....

Can you make me one for my Birthday in September please......

Very impressive including the whistle.

Don

Love it Dave.

Could your whistle valve be connected to a servo?

It looks to me that the couplings rods are in sync with the cylinders sugesting you have not geared down from the oscilator. I have a binnie motor intended for a tram which came with a step down gear which was recommended for slow running. Yours seem to run nice an slow.

Don