Showing posts with label troubleshooting. Show all posts
Showing posts with label troubleshooting. Show all posts

Monday, June 22, 2026

#135 ~ Test, Adjust, Test, Adjust, Repeat

 Making the Necessary Adjustments to Help Make № 135 a Reliable Runner.

In the last post about  135 we were trying to troubleshoot why it couldn't negotiate the left-hand turns.

After determining that more weight was needed, it turned out that a little more work was also needed on the frame to allow the trucks to swing more freely.

After some work, № 135 successfully negotiates a left-hand turn.

Turning the power truck with my fingers, I could just make out that one corner of the truck was rubbing on the frame. Normally I would remove the truck before filing the frame, but an extra weight I had just installed made removing the truck a bit complicated. So I kept the truck in place and carefully cleaned up after the filing. I don't want all that debris getting into the gears!

With its trucks swinging more freely, № 135 successfully negotiates a left-hand turn with № 426 making an opposing left turn, while № 9 makes a right.

№ 135 is becoming a much better runner. Occasionally it will still derail while making a left turn, so more adjustments will be needed. In some places, I'm beginning to suspect that the track itself may be the culprit and that it is what needs adjusting.

It's a constant battle: run, troubleshoot, adjust; run, troubleshoot, adjust; run, troubleshoot, adjust. Slowly but surely, things keep getting better and better.

And then one fine day, it'll all be perfect!

Yes sir! Perfect!

Dandy

Monday, May 04, 2026

#135 ~ Right Turns Only

No. 135 runs like a dream—until it meets a left-hand curve.

After a fair bit of troubleshooting, adjusting, and modifying, I’ve finally made some progress. The car can now negotiate the right-hand curves without much trouble.

But the left-hand curves? That’s a whole different story.


#135 runs beautifully in most respects, it’s smooth, steady, and reliable. It just refuses to cooperate when it comes to left-hand turns.

To get a better look at what was going on, I set up a camera trackside and ran the model past it. Watching the footage back gave me a clearer picture of the problem:


What I’m seeing is the car starting to climb the rails on those left-hand curves. That leads me to think a bit more weight might help keep it grounded and tracking properly.

The challenge is figuring out where to put that weight. I’ve already packed quite a bit into the roof, and I’d really prefer not to load up the passenger area if I can avoid it. So now it’s a matter of getting creative and finding a solution that works without compromising the look of the model.

But that’s part of the fun, right?

Yes sir! ~ It's all part of the fun!

Dandy