There's a hidden worm gear that takes motion from motor axis down to the lower gears. That can strip with age.

Edited by user 26 March 2021 19:09:39(UTC)  | Reason: Not specified

Thank you for your help. I've spent quite some time today researching the problem further, but I still have some issues and would be really grateful if anyone can help answer my questions.
In order to replace the worm gear, I obviously need to get to the old one. I've found a small screw on top of the engine (after removing the body) and this looks like it will remove the motor part. It's just behind a yellow / green thing ( sorry, not good on the technical terms) and looks like it will remove the clear plastic bit. Is this the correct screw to undo? (The engine is the same as 8891 / 8892 / 8893) I did take a photo, but can't find a way to attach it.
I looked in my box of bits ( which I acquired with some engines I bought) and found a motor which seems to be from an 8896 engine. I don't know if this is the same worm gear- is it the same for all horizontally mounted motors? I wondered if I could try the worm gear from this, but I can't remove it. Is it possible to get them off without damaging them or do they require pliers and force?
I looked at the ZScalehobo website, but could only find a worm gear for a vertically mounted motor. Maybe if I could find out the part number, I would have more success finding one ( if the one I've found can't be used.) I don't think I'll find one in England, though!
Any answers to the above would be much appreciated.
Angie.

I can't offer any advice regarding how to repair the loco but I can commend Marklin's repair service to you.

I’ve used the repair service twice – one warranty repair and one chargeable one, and I have been impressed with the quality of the work done. The chargeable repair was on my 88942 0-10-0 loco, the plastic reduction gear of which had broken. From what I can tell from the service sheet, they replaced the entire engine block – which, admittedly, does seem over the top for a broken gear. The repair cost just over £70 including the return shipping. Quite a lot of money, I suppose, but I was glad to have the loco back to match fitness and was happy to pay that much for the repair. If I remember correctly, the loco was back with me within four weeks.

Of course, shipping stuff to Germany isn’t quite a simple now as it was then, but this should give you some idea of what to expect if you do go this route.

Hope this is of help


Chris

Thanks for that suggestion. I think I now know what's wrong and which part I need. Marklin no longer stock the part, so I suspect that means they won't repair the engine. I will try contacting them if my search for the part isn't successful.
Angie.

I've heard that 226940 / e226940 might be the replacement part. Search "antriebswelle" ...

https://www.ersatzteile-...-mit-schnecke-br-50.html

It always pays off to have a few friends in Germany - he won't post to the USA either ... Sorry about it.

lokmuseum.de have 226940 in stock and they have shipped stuff to the UK for me in the past, though that might have changed.

As for Marklin service, my experience is that they can repair things that spares are not available for – whether they keeps spares back for themselves or have other cunning means, I don’t know, but I’d be pretty confident they’ll be able to repair your loco.

All the best


Chris

I've just looked at Lokmuseum and found that 226940 is currently unavailable. Please could you tell me how you found it?
Thanks,
Angie.

Hi, Thanks for that information. My original number was 26187, is that the same part as E261870?
I've found E261460 as possible available in England, but it says it's a drive rod for a snow plough. I don't know if they need the same rod.

Angie.

I'm sorry - I saw it listed and assumed it was in stock. Sorry for raising your hopes.

All the best


Chris

I appreciate your bringing up this subject. Finally got the two in stock 261640 & 226940 and up on my spares site. They appear to be identical. Photo attached.