Subject:
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Re: Question about LEGO train motors
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 6 Feb 2005 03:49:29 GMT
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Viewed:
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1546 times
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In lugnet.trains, Ted Michon wrote:
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What’s the scoop on getting LEGO train motors to run (and keep running)
smoothly?
As our motors age, they tend to make grinding gear sounds.
This weekend I converted 7 motors to DCC using 5 brand new motors. Some are
OK and some grind away, typically working better in one direction than the
other. My theory is that opening them to install the encoders agrgravates a
problem that occurs even in sealed units. If the bottom is not pressed
tightly up against the top, the axles have room to wobble and the gears don’t
make proper contact and grind.
Is that what’s going on? Or is it some other phenomena? In any event, what
can be done to make motors run better?
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I have never modified a motor for DCC. LUCNY isn’t that advanvced ... yet.
But I have had to fix a couple of motors. One was too far gone, while a couple
of others were fixable. The problem I found was the mesh between the motor’s
pinion gear (which is brass) and the nylon crown gear. Some motors don’t seem to
have the pinion gear pressed far enough along the axle. This causes the edges of
the brass gear to “chew” on the nylon crown gear. The one I couldn’t fix was one
which had already chewed up too much of the crown gear.
Inspect your motors’ pinions.
JB
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Message has 1 Reply:
 | | Re: Question about LEGO train motors
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| (...) I converted 2 of my motors to DCC. And I tapped the pinion gears closer to the motor on bothe. But One of my gearbox still made ratcheting sounds. I'm wondering if it's the gears, or is it the motor combined with DCC? Mat (20 years ago, 7-Feb-05, to lugnet.trains, FTX)
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Message is in Reply To:
| | Question about LEGO train motors
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| What's the scoop on getting LEGO train motors to run (and keep running) smoothly? As our motors age, they tend to make grinding gear sounds. This weekend I converted 7 motors to DCC using 5 brand new motors. Some are OK and some grind away, (...) (20 years ago, 6-Feb-05, to lugnet.trains, FTX)
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