5" gauge 0-6-0 Sweet Pea

Discussion of Live Steam locomotives should be located here
User avatar
GTB
Driver
Driver
Posts: 1140
Joined: Sat Mar 05, 2011 2:46 pm
Location: Australia

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

Post by GTB » Sun Sep 22, 2019 12:16 pm

DonW wrote:
Sun Sep 22, 2019 8:19 am
One thing I dont quite understand why would you need to remove a firebox quickly can you not simply drop the fire?
The Sweet Pea boiler design isn't a conventional locomotive type boiler, it is based on the Bagnall drumhead design, which has a marine type firebox.

You can't drop the fire into the ashpan like a conventional loco boiler, as the firebox is cylindrical and surrounded by water. The only way to remove the fire from the boiler is to take off the dry backhead and rake the fire out the back of the firebox.

Regards,
Graeme

ps. This Wikipedia article describes the marine boiler type that the Bagnall boiler was based on....

https://en.wikipedia.org/wiki/Launch-type_boiler

DonW
Trainee Fireman
Trainee Fireman
Posts: 212
Joined: Mon Jul 22, 2019 12:57 pm
Location: West Somerset

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

Post by DonW » Sun Sep 22, 2019 4:13 pm

Thanks for that. It would be a bit awkward simply dropping a fire in a boat.

Don

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Sun Sep 22, 2019 6:32 pm

Here are a few photos to go with Graeme's response:

IMG_20190922_182824-01.jpeg
IMG_20190922_182907-01.jpeg

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Sun Sep 22, 2019 7:08 pm

Did you spot the wheels in the last post?

These are for the tender and as you can see they need a clean!

IMG_20190922_190225-01.jpeg

I have tested removing rust using white vinegar (soaking the parts overnight) and it's proven effective so far, hopefully it will work on the wheels.

Here's the underside of the tender (paint needs stripping and parts cleaned up):

IMG_20190922_190247-01.jpeg

I don't know if I will ever use it, however, I am restoring it to test out my chemical blackening ideas for the loco.

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Wed Sep 25, 2019 10:01 pm

First round of cleaning:

IMG_20190925_215943-01.jpeg

These will be chemically blackened so the finish doesn't have to be perfect.

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Thu Sep 26, 2019 8:53 pm

First go using a proper four stage chemical blackening process, these parts are for the axle boxes on the tender:

IMG_20190926_201218-01.jpeg
IMG_20190926_202839-01.jpeg
IMG_20190926_203713-01.jpeg

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Wed Jan 29, 2020 11:37 pm

Efforts have continued since my last response, however, my job keeps me busy and enthusiasm to post has lessened as I don't feel there is enough interest in posts of 'large scale' projects.

The tender frame was undercoated with grey primer before I owned it to protect the metal although surface rust had developed. I applied paint stripper over the frame and left it for 24 hours:

IMG_20190927_200736-01.jpeg

To aid grinding the chassis back to metal I dismantled it and got one of the buffer beams cleaned up (not a great picture, the metal is brighter than shown):

IMG_20191102_203204-01.jpeg

On the loco front, new commercially made safety valves by Blackgates Engineering have been fitted and steam tested. These are 'progressive lift' type which means they don't blow off violently like pop safety valves but still close quickly once pressure has been released:

IMG_20191005_134259-01.jpeg

Each valve has a locking ring so that once set to blow off at the desired pressure they cannot be tampered with unless the ring is unscrewed.

Also, the reverser has been refitted after extra notches were added:

IMG_20191005_134247-01.jpeg

And the firebox nuts have been replaced with knurled nuts so they can be easily undone by hand (with gloves) if the fire needs to be removed from the boiler quickly:

IMG_20191005_134331-01.jpeg

User avatar
dewintondave
Trainee Driver
Trainee Driver
Posts: 594
Joined: Mon Mar 07, 2011 8:52 am
Location: New Zealand

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

Post by dewintondave » Thu Jan 30, 2020 2:40 am

Good work Tom! Stick with it, forums are a great venue for recording a project :thumbup:
Best wishes,
Dave

User avatar
Keith S
Driver
Driver
Posts: 1521
Joined: Thu Feb 24, 2011 11:44 pm
Location: Canada

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

Post by Keith S » Thu Jan 30, 2020 8:37 am

I'm pretty interested in this project. I just don't have much constructive input- but I watch out for new posts and read every one. I find the Bagnall "drum" boiler very elegant and does away with a lot of the tricky and high-stress bits like the mud ring and throat-plate.

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Sun Feb 02, 2020 10:07 pm

Just for you two, I will carry on :mrgreen:

The chimney as supplied was secured to the smokebox with this clamp (the clamp attaches to the bottom of the chimney inside the smokebox):

IMG_20190928_161548-01.jpeg

In practice, with the fluctuations of tempature and the movement of the loco on the track this clamp did not hold the chimney securely.

So, the smokebox was drilled and tapped to take BA bolts:

IMG_20191018_085428-01.jpeg
IMG_20191018_085414-02.jpeg
IMG_20191018_085407-01.jpeg

HugoFitz
Posts: 3
Joined: Mon May 08, 2017 3:08 pm

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

Post by HugoFitz » Mon Feb 03, 2020 10:27 pm

Great work Tom, looking really good!

User avatar
tom_tom_go
Chairman
Chairman
Posts: 4554
Joined: Wed Feb 23, 2011 3:08 am
Location: Kent, UK
Contact:

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

Post by tom_tom_go » Mon Feb 03, 2020 10:32 pm

Glad you are still with us Hugo as your introduction way back had many interests that you were planning to share?

User avatar
TheChestnutLine
Trainee Fireman
Trainee Fireman
Posts: 175
Joined: Fri Feb 25, 2011 10:53 am
Location: 'Up North'

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

Post by TheChestnutLine » Tue Feb 04, 2020 10:27 am

Looking great, Tom :thumbright:

Also following your build as I help run my father’s 3 1/2” Penrhyn ‘Charles’ and L&B ‘Yeo’, so it’s nice to see some large scale on this forum.

Cheers

James

User avatar
Peter Butler
Driver
Driver
Posts: 3646
Joined: Sun Sep 09, 2012 10:33 pm
Location: West Wales

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

Post by Peter Butler » Tue Feb 04, 2020 10:37 am

I'm watching too Tom, although I can't contribute to the thread I read each and every entry every day.... 'We are all different'..... (Life of Brian!)
The best things in life are free.... so why am I doing this?

User avatar
philipy
Director
Director
Posts: 2112
Joined: Sun Jan 30, 2011 3:00 pm
Location: South Northants
Contact:

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

Post by philipy » Tue Feb 04, 2020 10:56 am

As Peter said, I watch but have nothing to contribute, but it's interesting to see.
I'm sure the same thing applies to others as well.

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests