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SE4 resurrection
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Edward
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Joined: 17 Dec 2013
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PostPosted: Thu Jun 11, 2015 1:13 pm    Post subject:  Reply with quote

Had a bash at making the chimney spigot yesterday. The dies were easy enough but the brass isn't quite the right grade.

The first attempt was too ambitious and not annealed often enough: it cracked. Second one much better, six anneals to get to 1/2" depth.
That seems to be about the limit of this material and my skill.

By the time you get past about 1/4" deep it needs some help coming off the male die, the handpump did the job nicely.

image by sv dave, on Flickr

image by sv dave, on Flickr
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Spokesmann
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Joined: 08 Jun 2007
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Location: Plymouth, England

PostPosted: Thu Jun 11, 2015 6:21 pm    Post subject: Reply with quote

Whats the apparatus in the bottom image?
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Edward
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Joined: 17 Dec 2013
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PostPosted: Thu Jun 11, 2015 9:33 pm    Post subject: Reply with quote

A Stuart Turner boiler feed pump, piped up to a hole drilled down the centre of the die. Pump it up to force the brass pressing off the die.
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Spokesmann
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PostPosted: Fri Jun 12, 2015 4:58 am    Post subject: Reply with quote

Ah! Thanks Edward, it won't come off with ease then?

Look forward to seeing how you get on with your experiments. I take it you will rivet this in position? or maybe bolt it? These can be hard to get at!
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Edward
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PostPosted: Fri Jun 12, 2015 10:58 am    Post subject: Reply with quote

No, it sticks so tight that getting it off any other way risks damage.

I've fitted it to the engine, a spot of solder held it to the stud already in the boiler.
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Edward
Minor 1 - beginner
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Joined: 17 Dec 2013
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PostPosted: Tue Jan 24, 2017 12:29 am    Post subject: Reply with quote

A bit more crossed off the list.

IMG_4404 by sv dave, on Flickr

Mamod Minor 2 chimney from a scrap boiler, bottom being bored out here.

IMG_4406 by sv dave, on Flickr

Shortened and annealed, having the top bellmouthed.

IMG_4409 by sv dave, on Flickr

Fitted.

IMG_4411 by sv dave, on Flickr

A set of original gears and pulleys from a close-to-scrap SE2.
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Spokesmann
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PostPosted: Tue Jan 24, 2017 5:36 am    Post subject: Reply with quote

That chimney fits snugly. Excellent post work, love to see the whole engine as it is now.
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Steamvalve2
ME1 - more experienced
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Joined: 25 Feb 2016
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Location: Bishop Auckland. Co Durham

PostPosted: Thu Jan 26, 2017 12:53 pm    Post subject: SE4 resurrection Reply with quote

Edward this SE4 is coming along nicely and its great that you have salvaged an old Mamod chimney which fits nicely. Like Mike has said will be nice to see the whole engine when finished.. Excellent post  Very Happy


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