Converting the M 0-6-0 and others with the body mounted coupler to
MTLs is a relatively straight forward conversion. I used MTL 902
short shank couplers but 901 medium shank will also do depending on
1. support the loco upside down in a piece of foam inside a shoe box
for example, to catch anything that might fall out of your trembling
2. assemble a pair of 902 couplers and set them aside until needed.
You can separate MTL coupler springs that have rolled into a tight
little group by gently rolling them on a flat surface until they
separate. Do not pull on the springs using tweezers 'cuz you'll
likely cause some damage. These are tiny little beasts, so you
might want to use an optivisor.
3. carefully remove the screws holding the loco base plate and
gently lift off the plate, taking care not to dislodge the gearing.
I suggest a pair of tweezers for this operation. Put the base plate
aside in the same orientation as it was installed on the loco. This
will help to replace it without needing to test fit and perhaps
knocking a gear out of place.
4. remove and bag the M couplers and springs.
5. gently place an MTL coupler assembly with the metal "air hose"
pointing up into the air (remember that the loco is on its back)
over the metal post in the M coupler pocket. And yes, I have
installed MTL couplers upside down when not paying attention!
6. Optional: thread a strand of fine silk thread throught the MTL
coupler spring so that it does not leap into hyperspace during your
attempt to install it. I have always tempted fate and just used my
fingertip to hold the spring in place.
7. I use the point of a hobby knife blade inserted between the coils
to pick up the coupler spring and gently position it where the
original M spring was positioned. I use my finger tip to hold the
spring in place while I remove the knife blade. I does take two
hands to perform this operation. (I'm doing this from memory so I
hope that I'm thinking about the correct configuration. Someone
will set me straight, I'm sure!)
8. Repeat the procedure on the other end as required.
9. Gently reposition the base plate over the couplers. (If you used
the silk thread, gently pull it out now.
10. replace the screws and tighten until resistance is felt. Do not
Note: if an idler gear or main gear pops out during this operation,
you should be able to replace it with no harm done since the gear
position is not critical. The same technique applies to the M
railbus which I have also converted to MTL couplers.
Hope this helps.
--- In email@example.com, "loren snyder" <ljsnyder@c...> wrote:
> Has anyone ever converted the Marklin tank loco to MTL couplers?
> Can it be done and if so, any advice? Loren