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KLR Fox 10yr Overhaul
Topic Started: 17 Jan 2009, 11:36 PM (1,600 Views)
bvr379
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sdashton
21 Jan 2009, 02:17 PM
Allen I can assure you its no laugh, the problem when we did Badger, in those pre water treatment days, was that there was so much scale on the outside of the tubes that even after the welld had been completely removed from both ends the tubes didn't want to pull through the tube plate. The result was to weld a long bar to the end of each tube with and end stop on. We then had a sliding gripper that was physically rammed against the end of the bar and slowly, very slowly inch by inch they slowly came out. It was brutal, theres a photo on the friends website linked to the Badger page but its fairly dark, I have some video but couldn't possibly post it as depending upon the angle it all looks slightly dodgy! At least there aren't as many tubes in Fox's boiler!
If anybody doubts what can build up in a boiler that has used untreated water, see:

Inside the boiler of BVR #7.

All water for BVR locomotives is now treated!

Best wishes,
Edited by bvr379, 21 Jan 2009, 08:24 PM.
David Barnes

Bure Valley Railway - The 15" gauge railway with powerful steam locomotives.
Trains between Wroxham & Aylsham in Norfolk.
Daily services between 24th March and 28th October 2018.
Please look up the BVR website, for more details.
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glastonrail
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craiggluyas
20 Jan 2009, 08:53 AM
glastonrail
19 Jan 2009, 11:47 PM
Expanding/caulking tubes is a relic process going back to when not enough of welding was known. When more was known about welding, steam in Britain was in decline, which is why it wasn't adopted,
That and the fact that most locos had Copper fireboxes, Steel doesn't weld too well to copper.....
Quite right, Craig - fundamental error on my part. :rolleyes

David, even though Fox has been running on treated water since the last re-tube, plenty of scale and other crud came out of the mudholes when it got cleaned out last weekend!

Cheers,

Dom Greenop
"There's no such thing as sanity, and that's the sanest fact" M. Knopfler, 1985
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Allen Wiggins
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dom, so you got the job of cleaning the boiler out, looked like quite a task if you ask me
If it aint steaming, it a diesel, so send it to the nearest scrap yard!!!
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sdashton
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The thing to remember about the boiler treatment though is that it doesn't stop the crud, it still has to come out somehow. The primary aim of it is to keep the solids buoyant so that they don't stick to the tubes, firebox etc and cause rotting. We therefore don't now regularly blow down the boilers so that the concentration stays high, but they do still need to be washed out regularly to remove the crud. The key to whether its working or not is whether the insides of the boiler are clean after its been washed out.

Kind Regards

Stephen
Edited by sdashton, 22 Jan 2009, 01:47 PM.
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Allen Wiggins
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ah, i see now
If it aint steaming, it a diesel, so send it to the nearest scrap yard!!!
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Stuart Ross
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Following a succesful in steam inspection on 18th May Fox returned to traffic on Saturday 23rd May and so far she seems to be settling back in well, the new main steam pipes mean that steam is getting to the valves better and the steam chest pressure gauge is reading values that were simply impossible previously, which means she has much more in hand on the heavier trains.

One change that will be most noticeable is the large brass dome is now painted red, the verdict is still out around the shed at Clayton West!

Unfortunantly whilst Fox passed her steam test on Monday the 100% availability of the KLR steam fleet only lasted around 18 hours as Badger had to be stopped on Tuesday with firebox problems, once again we are awaiting Mr Bulmers verdict and recommendations. As such the three week rotating locomotive roster of Hawk, Owl and tank engine will continue for the time being.
http://stuartross.fotopic.net/

www.friendsofklr.co.uk

Find us at Facebook to discover more about the Kirklees Light Railway
http://www.facebook.com/kirkleeslightrly
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Allen Wiggins
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hi stuart, easier for cleaning then i take it, what exactly is up with badger?
If it aint steaming, it a diesel, so send it to the nearest scrap yard!!!
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