5" gauge 0-6-0 'Sweet Pea'

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DonW
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Re: 5" gauge 'Metre Maid'

Post by DonW » Tue Aug 13, 2019 8:01 am

Runs lovely on air. You are getting to the exciting bit next.

Don

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Re: 5" gauge 'Metre Maid'

Post by dewintondave » Tue Aug 13, 2019 8:15 am

:thumbup:

It's nice to see a mechanical lubricator.

Snap! I'm making a rolling road set-up right now
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Dave

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Re: 5" gauge 'Metre Maid'

Post by tom_tom_go » Tue Aug 13, 2019 4:38 pm

dewintondave wrote:
Tue Aug 13, 2019 8:15 am
It's nice to see a mechanical lubricator.
Even better when it works unlike when I first filled it up (spot the problem):

Screenshot_20190813-163334-01.jpeg

It's fixed now as you can see in the video I posted yesterday!

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Re: 5" gauge 'Metre Maid'

Post by dewintondave » Tue Aug 13, 2019 11:59 pm

tom_tom_go wrote:
Tue Aug 13, 2019 4:38 pm

Even better when it works unlike when I first filled it up (spot the problem)
What is that liquid in the lubricator, not steam oil eh?
Best wishes,
Dave

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Re: 5" gauge 'Metre Maid'

Post by tom_tom_go » Thu Aug 15, 2019 9:43 am

As it's running on air I am using light machine oil.

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Re: 5" gauge 'Metre Maid'

Post by Busted Bricks » Thu Aug 15, 2019 6:32 pm

For a sec I thought you were using lager for lubrication..... ;)

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Re: 5" gauge 'Metre Maid'

Post by tom_tom_go » Thu Aug 15, 2019 7:50 pm

The bubbles do make it look like beer now that you mention it!

The oil chamber was bubbling as one of the ball bearings was stuck, easily fixed and now pumping freely to both cylinders.

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Re: 5" gauge 'Metre Maid'

Post by DonW » Thu Aug 15, 2019 8:58 pm

It looks like detergent with all those bubbles. I presume you were using a light oil to reduce drag while running on air.

Don

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Re: 5" gauge 'Metre Maid'

Post by dewintondave » Fri Aug 16, 2019 12:29 am

Very wise. Did you notice how cold the cylinders get when running on air? It's quite a surprise
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Dave

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Re: 5" gauge 'Metre Maid'

Post by Big Jim » Mon Aug 19, 2019 10:46 pm

Looks great Tom, the Metermaid is a cracking engine, well appointed and well designed.
You will have some fun with her.
Now, when are you coming down to Wales to have a play?
If at first you don't succeed, use a bigger hammer!

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Re: 5" gauge 'Metre Maid'

Post by tom_tom_go » Sat Sep 14, 2019 5:21 pm

dewintondave wrote:
Fri Aug 16, 2019 12:29 am
Very wise. Did you notice how cold the cylinders get when running on air? It's quite a surprise
I was using light machine oil while running on air and yes I did notice how cold the cylinders were while running in this way. With the friction of all the moving parts I was expecting at least some heat.

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Re: 5" gauge 'Metre Maid'

Post by tom_tom_go » Sat Sep 14, 2019 5:22 pm

Big Jim wrote:
Mon Aug 19, 2019 10:46 pm
Looks great Tom, the Metermaid is a cracking engine, well appointed and well designed.
You will have some fun with her.
Now, when are you coming down to Wales to have a play?
Thanks Jimbo, it's very easy to work on.

I believe the club I have joined do visit other lines throughout the year so we may take you up on that offer one day!

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Re: 5" gauge 0-6-0 'Sweet Pea'

Post by tom_tom_go » Sat Sep 14, 2019 6:21 pm

Time for an update.

Depsite running on air a few times I was still unhappy with the stiffness of the motion (she still would not move when pushed or pulled and sometimes would lock up when the regulator was closed too much).

The piston in the cylinder that I had issues with at the beginning of this post was still stiff and therefore required further investigation.

Under guidance from my model engineering friend via WhatsApp I worked out the piston would slide freely in and out of the cylinder, however, when the slide bar was fitted and tightened up that's when the stiffness would be introduced.

After trying to resolve this myself using shims and adjusting the slide bar I decided this was beyond my skill and workshop facilities to resolve and so my friend kindly collected the loco to fix.

He discovered that the slide bar was not made correctly and so a new one was fabricated. There were also other small corrections made to the cylinder fittings that didn't match the drawings so we both concluded that the original builder had done a brilliant job on the chassis, wheels, quartering, etc but someone else then tried to the finish the loco to get it running and lacked the skills required or had poor eyesight...

The loco was returned once tested on air and I then tested it on my tiny test track as shown, it now glides along when pushed or pulled by hand!

IMG_20190911_141040-01.jpeg

The track was supplied by PNP Railways (https://www.pnp-railways.co.uk/) using their plastic clip system and works very well. I may buy more track in the future so I can run the loco up and down my driveway and into the workshop.

Now the more observant of you would of noticed in my last picture that the chimney was missing. I have never liked the look of the 'Metre Maid' and when purchasing this loco my interest was in the chassis and not the bodywork.

So, after two attempts at buying a suitable quality tube a larger chimney was made and today she was finally put in steam:

IMG_20190914_125327-01.jpeg
IMG_20190914_125334-01.jpeg

And here is a short video of her running outside on the rolling road:



Steam test tomorrow at my ME club (so that the loco can be used for public running), wish me luck!

Tom

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Re: 5" gauge 0-6-0 'Sweet Pea'

Post by Big Jim » Sat Sep 14, 2019 7:00 pm

Have fun with that.
The cartridge system used on these engines for the grate assembly is a brilliant design. Both my engines have grates that drop out of the bottom and are fiddly to get back up. Handy if you need to drop the fire quickly though.
Don't forget that steam engines are normally referred to as a 'she' for a very good reason.
I have found with both the Little Green B@##%r and the club engines that they need regular attention, don't like being left alone, sulk for no apparent reason and cost you a fortune.
If at first you don't succeed, use a bigger hammer!

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Re: 5" gauge 0-6-0 'Sweet Pea'

Post by DonW » Sat Sep 14, 2019 11:09 pm

It must be a relief to get the issues sorted. The new chimney looks good and seems to draw the fire well. Good luck with the steam test.
You mentioned the short piece of track. It reminds me when they re-furbished the boiler of the Iron Duke. It was stood on a very short piece of 7ft track, barely past the front wheels. I was on the footplate with the boiler in steam, but no chance to run it. A rolling road would have been helpful.

Don

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