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I too, just got one of these, though it shipped in August from PITSCO. All
of the things you mention. I thought I had a bad one. But I am giving it
the benefit of the doubt, and it seems to operate well. I have not done a
no-load rotation count test yet, which I do with all motors.
It may well be that these are superior motors. The first ones had some
noted flaws, and LEGO replaced a lot of them. That would be enough
motivation to redesign. I also note that it appears these can be taken
apart more easily. You first!
Let's see how it goes.
--Jack Gregory
"Mark Riley" <markril@hotmail.com> wrote in message
news:H40C99.G88@lugnet.com...
> I hope this isn't old news - at least I couldn't find any mention
> of it here, so...
>
> While rummaging through a new copy of the Ultimate Builders
> Set (#3800), I noticed that the 9V mini-motor that came with
> the set was somewhat different than ones I've encountered
> before. Normally, when I get a new one of these motors,
> I twirl the shaft with my fingers to hear that nice purring gear
> box sound they tend to make. Well, to my surprise, this
> one made a lot of noise. Not only that, but when I let go
> of the shaft after giving it a twirl, it only continued to rotate
> for about 2 seconds (as opposed to the 5 seconds or so for
> a normal motor). I thought "Darn, I got a bad motor!".
>
> However, after looking at this new motor for a while and
> comparing its operation to a "normal" motor, I noticed that
> indeed there were cosmetic differences as well. And, the
> number on the bottom of the motor in question was different
> than all the other motors in my collection (i.e. new motor =
> 43362, old motors = 71427). Here's an image of the
> differences I found between the two versions:
>
> http://home.surewest.net/markril/Lego/motors.jpg
>
> Oh, one more thing - while writing this I noticed that the
> new motor is definitely lighter (i.e. less mass) than normal
> motors.
>
> What's funny is that this is the second copy of set 3800
> I've acquired. The first set must have shipped with the
> normal version of the motor, because all my other motors
> are of the 71427 variety.
>
> Now, up to this point I've tried to be objective about this
> new motor. But, since the new version makes more noise
> and doesn't rotate as freely, I'm led to believe that this
> might be a cost cutting move on Lego's part. That, or I
> really do have a bad motor and it's just a coincidence
> that it happens to be the new version.
>
> So, does anybody else have one of these new motors?
> And, how does its operation compare to the others you
> have?
>
> Mark
>
>
>
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Message is in Reply To:
 | | New Version of 9V Geared Motor
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| I hope this isn't old news - at least I couldn't find any mention of it here, so... While rummaging through a new copy of the Ultimate Builders Set (#3800), I noticed that the 9V mini-motor that came with the set was somewhat different than ones (...) (24 years ago, 15-Oct-02, to lugnet.robotics, lugnet.technic)
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