Hornby Locomotive Die Casting

Discussion in 'Hornby RTR' started by Richard, Aug 15, 2017.

  1. Richard

    Richard Full Member

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  2. Keith M

    Keith M Staff Member Moderator

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    I've heard about this problem with the T9, but as yet, my own T9 appears unaffected. There have been cases of Mazak failure with other models of Hornby stuff before, usually manifesting itself as swollen or warped chassis, but breakage is also a problem. I'm no chemist, but I understand that the material composition of Mazak is critical, and failures due to using poor batches of the metal is not uncommon, Chinese QC being questionable both in the metal ingots
    the Chinese factory buys in as well as Hornby's designated assembly plant. There are usually plenty of T9's on Ebay, probably because of the reputation it's gained, and few want to be stuck with a 'dud', especially as Hornby don't (or won't) supply the offending problem parts. Little wonder Hornby's reputation (and share price) is fast sliding down the pan!
    Keith.
     
  3. ianvolvo46

    ianvolvo46 Staff Member Moderator

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    I'm not familiar with the part but would it be worthwhile getting a couple 3D printed or does it have to be metal, just a thought.

    Ian vt:scratchchin:
     
  4. Sandbar

    Sandbar Full Member

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    When I was involved with G Gauge trains, there was a fellow who used to make parts to fix Bachman locos who had drive problems with gears, motors and even replacing some main drive wheels.

    He was fixing these problems with a "hobby home business" - making good pocket money but not enough to make a living from.

    I was told by reviews that his trains were become the best runners and were virtually bulletproof for years.

    Maybe there a hobbyist who may be interested in this area of loco repair?

    Andrew
    Sandbar & Mudcrab Railway
     
  5. Richard

    Richard Full Member

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    Has the issue been resolved, I have not been able to get an answer from Hornby, and over the last few years I have boycotted their Locomotive products. However with the releases of the new Peckett, Grange (to replace the failed unit) and the Wainwright Tank I have now ordered 3 of there products.
    The Peckett and H Class tank these I am confident in, but the Grange is a concern.
    Cheers
    Richard
     
  6. Sol

    Sol Full Member

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    Plenty of this type of problem with crumbling chassis reported here
    http://www.modelrailforum.com/forums/index.php?showtopic=46266&st=0&start=0

    http://www.modelrailforum.com/forums/index.php?showtopic=28568

    http://www.rmweb.co.uk/community/index.php?/topic/109803-mazak-rot-arrghhh/

    are just three of many threads
     
  7. Richard

    Richard Full Member

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    Now this was interesting, I didn't know that has plagued the modelling manufacturing industry for so long.
    I have seen this type of metal failure in stainless steel, brass and copper but not in die cast (other than the locos) I'll try again with Hornby and see what happens.
    So just putting it out there how long would you expect a loco to last.
    May be the 3-D printer point is worth a look at, we have a 3-D printer that prints steel copies at work.
    Richard
     
  8. Richard

    Richard Full Member

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  9. Keith M

    Keith M Staff Member Moderator

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    I'm presently waiting for the Hornby 'H Class' in BR livery, which according to the Hornby 'rep' I spoke to at this years GCR model event, is due in December, but I doubt I'll be buying immediately it comes out, as I'll wait and see what the verdict of others is. At present, I'm happy to create my own RTR loco's, using resin bodies and chassis taken from existing RTR stock, although these are usually loco classes that are not available as RTR anyway. In these cases, I can at least give a chassis a careful examination before utilising it in a loco build.
    Keith.
     
  10. Wolseley

    Wolseley Full Member

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    As far as the T9 is concerned, I bought one from Hattons (it's cheaper than getting one on eBay) over a year ago with the intention of converting it to a Caledonian 4-4-0 (either a Lambie 13 Class, a McIntosh Dunalastair I or a rebuilt Drummond 66 Class, whichever is dimensionally the closest) - another one of my projects that hasn't got off the ground yet.

    The locomotive appeared to be in good order and was a runner. When, however, I started to take the body off the motor to rewire the pickups* it became clear that something was amiss. Half the motor mount remained on the chassis but the other half was stuck in the boiler (it proved quite a job to get it out, as mazak rot is often accompanied by slight enlargement of the affected part).

    You can't just stick these things back together, but replacement mounts are available from Peters Spares Model Railways Ltd in Middlesbrough. I bought one, but it's one of the many things I haven't got around to doing yet, so I can't report on how easy it is to fit, although it looks like it might need a bit of attention with a file before it slots into position.

    https://www.petersspares.com/peters-spares-ps61-replacement-hornby-t9-motor-mount.ir
    https://www.ebay.com.au/itm/Peters-...043991?hash=item4b4e2bda57:g:-RYAAOSwjkxbklXS

    * Practically all my stock is three rail Hornby Dublo or Trix, so anything else I have has to be converted, otherwise I would need two layouts rather than one......
     
  11. Andy_Sollis

    Andy_Sollis Full Member

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    I had one of the first batch of the detailed class 31 (not the old Lima model) from Hornby. They have a metal issue under the cabs where the metal floor is, which has caused mine to swell and bust the plastic body, and also distort to the point that it’s a £90 writeoff loco. Shame as was a great runner and wanted to fit a sound chip to it.
    I may see if I can 3D print the damaged part, but it needs to be accurately copied as it has copper pick ups which wipe other copper strips under the cab interiors for the lights. - and yes, I do want the lights, that’s part of the fun of diesels.
    Andy
     
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