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35018 British India Line

Discussion in 'Steam Traction' started by 34014, Sep 23, 2014.

  1. 60017

    60017 Part of the furniture Friend

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  2. Johnb

    Johnb Resident of Nat Pres

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  3. ilvaporista

    ilvaporista Part of the furniture

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    RalphW and Bluenosejohn like this.
  4. 60017

    60017 Part of the furniture Friend

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    Been very quiet on the BIL front since she came back from York three months ago. I wonder if we will see her on any of the winter CME's?
     
    Last edited: Jan 11, 2018
  5. 26D_M

    26D_M Part of the furniture

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    Allegedly an old cylinder fracture is beyond repair so will have to be replaced one way or another. Whether that process is underway I know not.
     
  6. martin1656

    martin1656 Resident of Nat Pres Friend

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    that would explain the steam leak from the front firemans side then.
     
  7. Big Al

    Big Al Resident of Nat Pres Staff Member Moderator Friend

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    ......and that locomotive passed a FTR examination for its first trip after proving trials following a substantial rebuild? Just contrasting that with a loco I'm aware of that was failed by the owners on a pre FTR because of a fractured rocking grate lever. Interesting if all true.
     
  8. 60017

    60017 Part of the furniture Friend

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    Ahhh ok, thanks, hadn't heard about that.
     
  9. martin1656

    martin1656 Resident of Nat Pres Friend

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    For all we know, at the time of the FTR, It may have been deemed ok, after all BR era welded repairs to cylinders are now beginning to show signs of failure in many cases and now with modern testing its found that castings are also showing signs of the metallurgy breaking down dont forget even if new cyclinders were fitted when these engines were rebuilt by BR the castings will now be near 65-70 years old and castings will eventually fail and cracks appear .
     
  10. Big Al

    Big Al Resident of Nat Pres Staff Member Moderator Friend

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    Agree with that but under power I don't recall seeing a particularly healthy looking loco either on test or on its first trip. That said, there does seem to be a number of factors at work here. Perhaps hindsight tells us that the loco was not actually ready for the ML and this pause may well allow further work to be undertaken. Hopefully before too long BIL will re-emerge in better shape.
     
  11. 26D_M

    26D_M Part of the furniture

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    Well it would be easy to put 2 and 2 together using hindsight but perhaps not so simple to diagnose the root cause of the leak apparent to all onlookers.
    Will a brand new cylinder be manufactured or a donor sought? There is a few dismantled classmates around .....
     
  12. martin1656

    martin1656 Resident of Nat Pres Friend

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    That depends on which cylinder has apparently failed and if any replacement won't have the same problems, if its the middle then 35011 may be a possible donor as the un rebuild back to air smoothed condition will need a new middle cylinder, if its an outside cylinder then 34073 may be a possibility assuming the cylinders of the Light are the same size as on the MN.
     
  13. Big Al

    Big Al Resident of Nat Pres Staff Member Moderator Friend

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    If the problem was an unknown existing crack then scanning technology exists nowadays to discover such things prior to reassembly and presumably would/should have been part of the restoration process. However it's a different matter if the fault appeared during testing.

    It really is such a shame that there seems to be no sharing of information emerging from Carnforth especially over detailed engineering matters. It's not as if there isn't a wealth of technical knowledge about Bulleid Pacifics out there that could prove to be helpful to those at 10A. I can understand why the regime at 10A might not choose to share every last detail of what is going on in their works as it is, after all, their own private business. But the absence of any informed commentary (as you see, for example, from time to time on Ian Riley's website) does mean that any offer of help from elsewhere just won't be forthcoming if needed. And whilst I'm sure that the Carnforth team will know what they are doing, it takes a supremely confident (or unwise) outfit to feel that they know everything, especially about a locomotive class that is untypical of standard LMS designs.
     
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  14. 26D_M

    26D_M Part of the furniture

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    Believe its the RH, which seemed to tally with the observed steam leak during its various public appearances last year.
    As to the light pacific cylinder I believe same stroke smaller bore but whether any other differences in the cylinder occured after rebuild I don't know.
     
  15. martin1656

    martin1656 Resident of Nat Pres Friend

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    Thanks for the info, if its an BR era crack, thats been welded and then re welded but has opened up again, or as a result of the weld weakening the surrounding steel casting, then its just unfortunate, but at least an outside cylinder is an easier job than a middle cylinder, at least you wont have to lift the boiler or remove the smokebox
    is it the actual cylinder or the main steam pipe to that cylinder though as normally you would think NDT testing would have been done on the cylinders as part of the restoration.
     
  16. 26D_M

    26D_M Part of the furniture

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    You may know more but a fair amount of work was done during its time at MHR. Whether that included a repair to the cylinder, including a certified NDT at the time perhaps?
     
  17. andalfi1

    andalfi1 Active Member

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    As someone who has been involved in both Dye Pen and Ultrasonic testing of a multitude of engineering components, granted, only a handful of Loco applications, I can categorically state I for one would not be happy testing a Loco cylinder, without first de mounting it from the frame, if the owner required anything less than a roughly 90% accurate result.
     
  18. John Petley

    John Petley Well-Known Member

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    The cylinders are smaller on a light pacific:- 16 3/8" x 24" as opposed to 18" x 24" on an MN.
     
  19. Gladiator 5076

    Gladiator 5076 Active Member

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    I know there are some involved with WCRC who are also involved with heritage railways with Bulleid knowledge, so maybe WCRC are just observing their usual "need to know" rules, and I guess we all don't!
     
  20. 60017

    60017 Part of the furniture Friend

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    I'm not interested in the petty politics creeping into this thread. Merely looking forward to seeing an MN up north doing her stuff on the main line. Looking forward to that day when it comes.
     
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