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Morning,

I picked up a Premier Mikado and was test running on my track. I have gargraves track (054) curves. At the curve, the pilot trucks derail, every time. I have inspected the trucks and they appear to be fine, no bends or apparent abnormalities.

Would anyone have my ideas or suggestions?

Thanks in advance

Last edited by nsp154
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That’s a Premier with the scale flanges….that locomotive has the 2-3 feature……it may not like that particular brand of track…..check your track for evenness, making sure there’s no odd transitions…..be sure the truck pivots and articulates as it should. Check gauging vs. track. You may have to find a happy medium to keep the wheels locked between the rails…..I never had much luck with the 2-3 feature on my layout as well,…

Pat

@nsp154 posted:

Morning,

I picked up a Premier Mikado and was test running on my track. I have gargraves track (054) curves. At the curve, the pilot trucks derail, every time. I have inspected the trucks and they appear to be fine, no bends or apparent abnormalities.

Would anyone have my ideas or suggestions?

Thanks in advance

Are the scale wheels on the PILOT the only problem ?

If that is the case you might want to install a stiffer spring on the pilot.

I have a steep downhill into an 031 curve that gave me the same problem with my Railking Imperial Mallets at speed.

After the stiffer spring was installed the problem was eliminated.   .......................don't use super strong springs . You don't want to bounce the front drivers off the rails . 😨

@Strummer posted:

Is that a factory install? Was it installed correctly?

It almost looks like it's upside down, and like it was "cobbled" together...see how the pivot point looks off center...

A centering spring would certainly help.

Mark in Oregon

It is indeed factory, and it’s not upside down. The issue the OP is having has to do with the type of track, and the flanges. These locomotives are pretty much 2 rail scale engines with a center rail pick up provision. He’s using Gargraves track, which is more similar to tube track then scale rail…..the short flange wants to ride up the tube, then derail…

Pat

@Strummer posted:

Is that a factory install? Was it installed correctly?

It almost looks like it's upside down, and like it was "cobbled" together...see how the pivot point looks off center...

A centering spring would certainly help.

Mark in Oregon

Mark , the pivot point on these does have an opening below the screw and disc that allows that part of the pilot wheel assembly to slide AND rotate left and right.   In certain positions that pivot point would look off center with that screw and disc hiding the opening.

HOWEVER......I agree with what you are saying about the the pilot wheel assembly being upside down. 🙄

It looks to me like the circular depression round the C clip is too large and should be facing up to accept the bottom of a conical spring .......which would be normal.

Boy are we killing this dead horse.  There is no need for a depression for a hidden spring, but you do want the c clip and head recessed not to hit a middle rail when run on one.  If you flipped it, the wheels would angle up making it worse.  Stiffer spring if you can find one could help, but some models are more problematic then others on certain track.  G

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