Wild Rose ~ Quarry Hunslet

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dewintondave
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Post by dewintondave » Sat Feb 11, 2017 4:06 am

As the test pressure gauge was still attached to the boiler I thought I'd make the safety valve next.  It's the ball bearing type, but not a pop-valve.


This is the top of the safety valve, the holes were marked out and centre punched under my bench mounted illuminated magnifying glass, and drilled in the bench drill.  The holes are 1.3 mm dia.

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Testing the safety valve, using the small Sievert cyclone burner

Last edited by dewintondave on Sun Nov 24, 2019 6:19 am, edited 1 time in total.
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Tue Jan 02, 2018 9:17 am

I have been slowly plodding along with the construction, it's been a lot of fun though. At the moment I'm pushing for a steam test soon. The chassis is on the workbench, I'm getting it all set right, I love all the fitting. There was too much sideways play in the axles so I added grubscrews to the spacers that sit between the wheels and axle bushes, these allowed me to adjust their position to reduce play. Then I had the bright idea of oil blackening these parts. They came out a lovely shiny black.



This is the part being blackened in the video
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Axle spacer fitted with grub screws
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Happy New Year
Last edited by dewintondave on Sun Nov 24, 2019 6:33 am, edited 1 time in total.
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by LNR » Tue Jan 02, 2018 12:01 pm

Hi Dave, Happy New year to you too.
Your blackening process is one I've used for things, but never found it very durable. Some actually chipped off. Have you any experience of this?
Grant.

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Re: Wild Rose ~ Quarry Hunslet

Post by tom_tom_go » Tue Jan 02, 2018 12:34 pm

Have you tried chemically blackening metal Grant?

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Wed Jan 03, 2018 12:21 am

LNR wrote: Tue Jan 02, 2018 12:01 pm Hi Dave, Happy New year to you too.
Your blackening process is one I've used for things, but never found it very durable. Some actually chipped off. Have you any experience of this?
Grant.
Hi Grant, I've used it a bit. Look at this image, I made these die holders for my Unimat 3 lathe in about 1990, not sure when I blackened them but maybe when I restarted the hobby in 2005. The smaller has worn because I hand thread with it often. I'd say it was an ideal finish for loco parts with no great thickness and no chipping.

Image
Last edited by dewintondave on Sun Nov 24, 2019 6:20 am, edited 1 time in total.
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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Wed Jan 03, 2018 2:08 am

A while ago I tested the chassis on air power, the first from a football pump, and then from my car tyre. I was so happy with the slow running on the tyre compressed air that I'm speeding towards a steam test :)





This project is two years old now :shock:
Last edited by dewintondave on Sun Nov 24, 2019 6:28 am, edited 1 time in total.
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Re: Wild Rose ~ Quarry Hunslet

Post by LNR » Wed Jan 03, 2018 3:20 am

Great slow running Dave, a credit to your fitting work. Bet your dying to get on with the project now.
Re the metal blackening, and not wishing to hijack the thread, but when you used the word blackening
that put me on a different track. As an antique clock collector, I have cause to "blue" many steel items and the colour is really long lasting. Seeing you quench in sump(?) oil I thought you were looking for something different.
Grant.

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Wed Jan 03, 2018 3:54 am

LNR wrote: Wed Jan 03, 2018 3:20 am Re the metal blackening, and not wishing to hijack the thread, but when you used the word blackening
that put me on a different track. As an antique clock collector, I have cause to "blue" many steel items and the colour is really long lasting. Seeing you quench in sump(?) oil I thought you were looking for something different.
Grant.
It's really dirty 4-stroke lawnmower sump oil, plenty of missed oil changes, so plenty of carbon.
Last edited by dewintondave on Sun Nov 24, 2019 6:27 am, edited 1 time in total.
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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Fri Jan 05, 2018 2:55 am

Here's a summary of photos filling the gap from Feb '17 until now.

Safety valve with new whistle valve
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Whistle valve, and turret for pressure gauge, plus one accessory
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Instead of brazing, I Loctited the nipple to the blower pipe
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Smokebox sealed
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The loco prior to my April UK trip
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Smokebox door locking bar
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Machining the chassis mounted port blocks
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Cylinders and port blocks
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Smokebox with mounted reversing block
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Machining the reversing valve
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Piston assembly
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Prototypical openings in buffer beam; I passed the pistons through them
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Setting the port openings
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Complete reversing valve assembly with steam inlet and exhaust, plus big bucket dead leg lubricator
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O-rings in port blocks, small port is steam, large is exhaust, optimized for forward running; we'll see if it makes a difference in real life
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Regulator body
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Outside on the line with the large regulator handle
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Halfway into the blower pipe elbow
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Elbow with fittings and blower pipe
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Blower pipe fitted to smokebox
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Merry Christmas!
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Last edited by dewintondave on Sun Nov 24, 2019 6:25 am, edited 1 time in total.
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by daan » Fri Jan 05, 2018 10:57 am

Great little engine. I like the unusual way the cylinders are coupled to the driverods. Looks a bit like a rack railway locomotive.
"En schöne Gruess" from an Alpine railway in Holland.

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Re: Wild Rose ~ Quarry Hunslet

Post by tom_tom_go » Fri Jan 05, 2018 12:32 pm

Prototypical openings in buffer beam, so that's why there are big holes!

I never knew why, yeah laugh it up.

This engine is lovely and a joy to read about it's creation.

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Re: Wild Rose ~ Quarry Hunslet

Post by ge_rik » Fri Jan 05, 2018 1:30 pm

Wow! That's so good. I do admire your engineering skills - and envy them.

Rik
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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Fri Jan 05, 2018 10:11 pm

daan wrote: Fri Jan 05, 2018 10:57 am Great little engine. I like the unusual way the cylinders are coupled to the driverods. Looks a bit like a rack railway locomotive.
Thank you. It would have complicated things angling the cylinders and all downwards. It's a bit of an oversight too. I was going for attachment at the rear crank pin, but was concerned that I wouldn't get enough "waggle'. Let's see how it looks when I make the footplate.
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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Fri Jan 05, 2018 10:19 pm

tom_tom_go wrote: Fri Jan 05, 2018 12:32 pm Prototypical openings in buffer beam, so that's why there are big holes!

I never knew why, yeah laugh it up.

This engine is lovely and a joy to read about it's creation.
Thank you Tom. It's just my guess, but the holes are in the right place ;)

It's getting really close to a steam test, with a blowtorch in the firebox!
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Fri Jan 05, 2018 10:27 pm

ge_rik wrote: Fri Jan 05, 2018 1:30 pm Wow! That's so good. I do admire your engineering skills - and envy them.

Rik
Thank you Rik. I really enjoy it. I just don't seem to lose interest anymore, unlike when I was young. I admire your work too. And, (fingers crossed) I hope this loco gives the slow/smooth performance that you have found lacking in comercial live steam locos :thumbup:
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Sun Jan 07, 2018 8:27 am

Today was the day! Steam test time. Two runs on the workbench in the garage this afternoon, without the chimney extension or the smokebox door so it could be fired by the blowtorch.

1st run with half a gauge glass of water seemed very brief until the water was out of sight, but the 2nd run with a full glass of water lasted about 30 minutes of gentle ticking over. First impressions, it runs wet.

The lubricator worked well on the 2nd run, I started it off without the lid, trickling steam over the cold oil, then put the lid on. It's connected to the reverser by a silicone tube, I could see the different flow when slowing or stopping the engine compared to the running, there's a reverberation when running. After the run there were plenty of oil splatters on the boiler shell and a fair amount inside the smokebox.

There was a gentle leak from the blower valve throughout, which will not be a problem when the blower is connected.

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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by FWLR » Sun Jan 07, 2018 10:11 am

Very nice Dave, bet you can’t wait to get it on the track. :thumbright: :thumbright:

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Re: Wild Rose ~ Quarry Hunslet

Post by tom_tom_go » Sun Jan 07, 2018 11:03 am

When you say it runs wet is this just exhaust condensate?

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Re: Wild Rose ~ Quarry Hunslet

Post by Busted Bricks » Sun Jan 07, 2018 7:18 pm

It's lovely and I really like the big oscillating engines. I like running live steam trains - they don't have to be exact scale models to float my boat.

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Re: Wild Rose ~ Quarry Hunslet

Post by daan » Sun Jan 07, 2018 10:58 pm

That really doesn't dissapoint me for an oscillating engine, or any live steam engine actually. It runs really slow and smooth as silk. Good job!
"En schöne Gruess" from an Alpine railway in Holland.

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