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MHR Restorations and Overhauls

الموضوع في 'Steam Traction' بواسطة LN850, بتاريخ ‏21 ماي 2010.

  1. Swan Age

    Swan Age Member

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    I'm sure JB had told them what to look out for. Lol . Anyway any decent engineer would suss it out in seconds I would think.

    Incidentally why was 73096 allowed to run with flawed motion for so long on the mainline and who was the whistleblower who spilled the beans about it, thus ending 73096's mainline career.
     
  2. martin butler

    martin butler Part of the furniture

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    i would hope so ;) as to who and how etc, most likily the ROSCO who passed 73096 as fit to run on NR,did not know, or concidered it ok to run, my bet is on the later, that they did a risk assesment and decided the motion was ok at the time as to the whistle blower , someone who was concerned with the MHR who had a grudge against JB is the likily answer, plus the MHR once it sold the green train, were not going to be involved with main line running, so it suited them to have someone spill the beans .
     
  3. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    If there really was a serious flaw with the motion, wasn't 'spilling the beans' the right thing to do?
     
  4. Hampshire Unit

    Hampshire Unit Well-Known Member Friend

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    One last shot of 73096 in Ropley yard with Britannia in the background. I'd hoped to take some photos of 92212 on the RAT but it was delayed by late running trains on the Big Railway
    IMGP8500_edited_2.jpg
     
  5. Hurricane

    Hurricane Member

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    I am not sure serious flaw, I am sure its just because they are welded not forged…. I am sure (correct me if I'm wrong) if the welding is a modern certified weld then it would be ok… the problem with 73096 is her welded rods do not possess the correct certification.
     
  6. green five

    green five Resident of Nat Pres

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    14th was mentioned at the AGM but that was only a "provisional date".
     
  7. martin butler

    martin butler Part of the furniture

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    that does sound about correct , its very telling that she ran for 7 years ,then did a second stint on the mainline, with no problems concerning her motion, most of the problem is that the paperwork to proove the welding, and that the material for other motion parts could not be guarenteed to meet main line spec but were most likily made of material that was up to spec, or exceeded it. but the necessary paperwork trail was not in place.
     
  8. Duty Druid

    Duty Druid Resident of Nat Pres

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    What you mean is, there was no paperwork......................... full stop.........

    Anyway, be interesting to see if she does a "Bodmin" & spends some time at Southall before progressing Oop North...... and you kind of get the feeling that this will be a VSTP move, considering there's been nowt on RTT.......
     
  9. LC2

    LC2 Member

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    I think we were on time leaving Alresford though (we certainly were by Alton), we weren't too badly delayed by the problems at Wimbledon, I think the 19:10 got in at 19:39 or 19:40, so we were delayed by 10 minutes, without the Belle running, the stops at Medstead & Ropley were as short as possible.
    Your shot of 73096 was far better than mine last night
    https://www.flickr.com/photos/timw1/15326032130/
    I didn't notice the missing motion whilst mooching around the yard before the RAT, must've had my eyes closed!
     
  10. Swan Age

    Swan Age Member

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    Tied into the rumour that 73096 is destined for a further stint on the mainline, could the existing motion be materially tested NDT, steel spec analysis ect, to prove its fit and up for the job or will new components be needed?
     
  11. LC2

    LC2 Member

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    That would be interesting, what with next weekend being the Steam Railmotor weekend at Southall (assuming that the rumoured date of the 14th is correct).
     
  12. green five

    green five Resident of Nat Pres

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    I heard a few things about the rods but I won't repeat them on here!
    Even if there hadn't been a problem with the rods she would still have been withdrawn from the ML as the MHR didn't want to be involved with ML tours anymore. ML steam railtour planning and operation was certainly becoming a headache back then and the MHR managed to run some of the best Railtours in the South despite the problems that they started to encounter. I used to talk to one of the people involved with the planning of the Railtours and I certainly didn't envy their job.
     
  13. 21B

    21B Part of the furniture

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    The loco was withdrawn from mainline service once the fact that the rods were welded was discovered. If I recall correctly there wasnt much of the 7 year ticket left. Selling the green train was immaterial. The MHR continued to operate locos on the mainline after the stock was sold, Bittern.

    my understanding is that weld repaired motion is not permitted on the mainline and that this is an absolute prohibition.
     
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  14. Swan Age

    Swan Age Member

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    Thanks for clearing that up. So new rods will definitely be needed to resume mainline activities.
     
  15. 26D_M

    26D_M Part of the furniture

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    Maybe an exchange could be brokered with the owners of a classmate not under consideration for mainline return?
     
  16. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    Cannot imagine that being a popular idea amongst those with original motion.
     
  17. 61624

    61624 Part of the furniture

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    It's not an unsolvable problem, just adds to the cost of the overhaul.
     
  18. martin butler

    martin butler Part of the furniture

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    is there any sign of the soutthbound working yet from Carnforth to alton bringing the coaches that are due to be coming to the MHR, and have the 2 metcams been brought up from Alresford yet?
     
  19. 26D_M

    26D_M Part of the furniture

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    Maybe not but its happened before. 71000 ran for years with an injector from 70013 when the latter was incarcerated; 5690 borrowed a cylinder end cover from 5699 in the latters Tyseley days. More recently Bulleid tenders have been known to go on loan. Guess it depends how attractive the economics are to both parties.
    By the way has 73156 had a new set of motion manufactured?
     
  20. martin butler

    martin butler Part of the furniture

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    i should imagine that 73096 will need a complete new set of motion ,now depending on time scale, she might borrow motion from another std5 if it cant be made in time but who would loan their motion ,of course it depends on who owns the engine but given the whole saga of how 73096 got onto the main line in the first place i should imagine this time round the overhaul will be very closely monitored and everything done correctly
     

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