Hornby Class 25/24 Diesel with Two Motor Bogies: Repair Request

[@paulfisher7295]

What a fantastic result, I couldn't have asked for more. I like the weathered look on loco's, from the late 50's until the early 70's Iived beside the Birmingham- Derby main line so I grew up with run-down manky loco's, happy days and thank you very much

[@PeterJewell2]

A very useful addition to your canon, Bill! Tackling a two-motored loco (even if there's dispute as to which is the better way to wire it!) and also diagnosing and showing us the problems that indicate a knackered Ringfield. Something to remember. Thank you! I like that conversion. It's not perfect, but it's real modelling and a lot of love went into its creation. It really looks the part. (The Class 24 is easily distinguished from the later Class 25, as the Class 24 locos had a distinctive rounded roof, whereas the Class 25/1 (as Hornby modelled) has the enormous headcode box above the cab. There are other detail differences, of course, but otherwise they largely look the same.

[@paulbaker3632]

good to see twin motors ! i worked on these at hornsey loco on transfere frieghts to the southern happy days and fond memories

[@paulnewnes1921]

Yet another triumph for your patience & ingenuity Bill super job I just wish I was similarly blessed

[@henrybest4057]

The motors were connected in series. Connecting them in series ensures that both motors run at the same speed (as the same current passes through each of them), but each motor only gets half the voltage (6 volts max). You correctly connected them in reverse parallel.

[@Jamie096]

Wiriing them in series ensures both run and ideally balanced. Wiring them in parallel means one can pull the full voltage and other stall. Whilst enjoy the vids he's incorrect in some of his statements. I.e it won't work as he received it.

[@henrybest4057]

@@Jamie096 It may have worked if he had put 24 volts on the track.

[@pedalcarguy]

Wonderful job, it runs beautifully! Good thing you had a spare part lying around. I like to tinker with run-down steam locos, but I have yet to encounter one with a serious case of mazak rot. I wish to revive one of those. "Man-made things can be fixed by man" is an old saying from my neck of the woods. Thank you for sharing!

[@timgray3491]

That was an interesting problem Bill great that you were able to keep it as a twin motoryou don't admit defeat easily!!!! Good to see the Scot rail class 47 running in the background.

[@nicholasbishop3300]

Really interesting repair this one Bill Nice logical diagnosis and repair Well done mate Nick Australia

[@lesbird2074]

I also have a Hornby 25 converted to a 24 which I did many years ago and it too has two power bogies. I also lowered it to the correct height. I've never found the need to add weight as it performs very well as it is. It's currently blue but I intend painting it green one day. As it's quite easy to add a second power bogie, I wonder if Hornby planned it that way so they could offer a twin motored version.

[@smithge4uk]

The only instance where I have seen 2 power bogies in a single locomotive was many years ago in Railway Modeller magazine where a guy had a OO gauge shed layout that had a huge garden loop with inclines and bridges etc. He was running Lima diesels with 2 power bogies as robust and heavy so he could do away with traction tyres so he could run in real light drizzle, as wet track made tyred wheels slip. But indoors you dont need 2 power bogies. Nowadays there would be a central can motor driving all wheels anyway

[@richardsanders4624]

Excellent Video-Summery, Thank You 😃👍

[@frankwhittle4364]

I think 11 out of 10 for ingenuity, best one yet. Frank

[@mikeking2539]

Well that seemed to work out better than I thought it would!

[@mickeybarrass3625]

OO Bill aka Chief Modelling Engineer of the Model Springburn Works. I think you need a bigger shed mate and a class 20 to be your super shunter. Another job well done, if you dont mind me saying young sir, your getting very good at this lark now Bill😂😂 Two motors, no panic. You'll have have a go in the body shop, of your mini works. Convert one of those coaches into a DBSO before having a crack in the paint shop and painting them into Scot Rail livery too. Excellent video again Bill. Thank you for sharing.

[@PeterJewell2]

Now there's an idea! How appropriate for Bill's layout. [Mickey means converting one of the Mark 2D brake coaches, known as a BSO (Brake Standard Open) into a DBSO with windows in the end and a driving position (D for Driving), so that Bill could recreate the push-pull trains that ran between Glasgow and Edinburgh, driven one way from the DBSO with the loco at the back of the train, pushing.]

[@YsanneOshea]

That is fascinating! What an interesting idea. Two Motor Bogies! I have never even considered it as a possibility! I have a vintage Hornby class 37 that is currently in dire need of mechanical attention. I wonder is something similar might be possible? Would it be possible for you to place a basic wiring diagram for us to view in a future video (or anywhere else for that matter?) Thank you so much for your hard work and detailed commentary. Who knew model locomotives could offer up so many challenging permutations!

[@oobill]

Although I wanted to keep this as a twin motor it's not some thing I would ever do to a loco or recommend. A single motor should suffice. Keep things simple!

[@stuartburton1167]

I had a 25 with twin motor bogies but from memory it wasn't wired the way you did it. I think I had it wired in series I used a wiring diagram from a magazine that was quite complicated for a spotty teenager with his dad's soldering iron. It was slow but it could haul a serious load of coal wagons loaded with real coal

[@markjarvis7637]

Twin motors was a common, easy way to get all wheel drive, back in the day, a few of my loco's have twin motors

[@WS-1]

Top solution - well done Bill .

[@misteryreviewer1426]

Interesting video, what were the wheels in the chassis about? If they were to add weigth I doubt they did much to help.

[@mickboakes7023]

Well done Bill. Looks good to me.

[@bigmac60]

Nice one bill definitely the best 4x4xfar.

[@DaiElsan]

As soon as I saw the connection linking the two motors means its connected in series and not parallel.

[@kleedhamhobby]

You seem to be getting more and more adventurous in terms of the modifications you're prepared to do. And you have a good range of tools, including things that I don't have but should probably get, such as gears pullers and taps and dies. I'm not sure there would be much advantage in running that with the two motors. It's going to draw a lot of current, and I wouldn't think that it would really work much better than with one motor bogie... maybe if you really needed to pull a large load up inclines. Basically, the way you rewired it, it's like double-heading, i.e. two locos pulling a single train.

[@ianjones4116]

A Twin Engined " baby Sulzer ", so its actually a Super Rat !! Long live the 'Skinhead 24' . 😎😎👍👍

[@samwoodward8491]

Where can I get a gear puller from, regards Sam Woodward. Great video again, always thought you shouldn't run two dc locos on the same section of track ?

[@peternorris6438]

Another interesting repair thamks

[@esseel7896]

wonder what it pulls like on a scale? :)

[@Theoriginalborgy]

That looked like a fun project. What's the pulling power like compared to a single ringfield ?

[@Faresplease]

Nicely carried out ... what is the history on the hammer lol

[@oobill]

The hammer was my grandfather's. He was a joiner to trade but worked as a Master Butcher (slaughterman) in Salford Manchester in the late 19th and early 20th Century. My dad inherited his joinery tools and was also a joiner. I used to use this hammer as a kid a lot when pretending to help my dad do stuff but it's still my go to tack hammer.

[@Faresplease]

@@oobill Thanks Bill ... I also have a few old tools from a grandfather that I never met.

[@johngibson4641]

Hi Bill ,, Ok so with 2 of these ringfield motors here in 1 body seems to run quite well and pretty fast too.. Now i used to run mostly single header locos when was a youngen and they would work great but if i ever put 2 locos on to haul a bigger train ie more carriages the trains would go but no where near as fast as what 1 single loco goes yet these 2 ringfield motors in this loco you have posted about seems to run quite well for both of them together. The other thing is most of my old trains were triang so are the lima/hornby ringfield motors compatible to run 2 locos at a time. Now i was told when i was younger that i can overheat and wreck the transformer so would there any truth to this if you (or anyone) know of. Cheers from John in Australia

[@PeterJewell2]

Your transformer should (already) be fitted with a thermal cutout, so if the locos are drawing too much current, the cutout should operate to protect the transformer. As for running double-headers... The problems are exactly the same as Bill encountered here: you need both locos to be well balanced (speed/service -wise) or you will likely end up with one pulling (or pushing) the other. But I would say that any of these older locos will work fine together -- just give them a try and see which combinations click.

[@johngibson4641]

@@PeterJewell2 thankyou ,, I'll give that a go. Cheers from John in Australia

[@propulsar]

Interesting video.

[@michaeldavies9600]

That looked really complicated to a 'Land Hand' like me,like some of the others have said,don't the motors share 12v giving them 6v each or am i miles out?

[@IanCurrey]

No, the motors are wired in “Parallel” so BOTH get 12 volts (or whatever is being sent to the track). The deal is though that the combination will draw two lots of current (so twice as much). Think of it as having two separate locos that just happen to be held together by a a class 25 case 😊

[@michaeldavies9600]

@@IanCurrey Thanks for explaining it to me we learn something new every day :)

[@mikeking2539]

You really need both motors to be perfectly 'balanced' with each other! (But I suppose that you know this already) I think it would be rather difficult to do, just by adding a second motor of the same type, like Paul has done. or whoever did the original conversion work!

[@blue2sco]

Oh well some new(old) wheels to sit outside the engine shed.

[@gregoryhale2202]

🚂✌

[@schwarzalben88]

Its been wired in series by the look of things, It shouldn't be wired in parallel.

[@charlesemerson6763]

Nice job Bill.

[@karlgaff9303]

Seems to work fine. Unlike the trains in uk at the moment. 👎

[@madduckuk]

Paint it blue and name it Colin McRae

[@User-3O3]