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Re: [Spridgets] Rotor quality problems

To: "Timothy H. Collins" <thcollin@mtu.edu>
Subject: Re: [Spridgets] Rotor quality problems
From: "Brent Wolf" <wolf.brent@gmail.com>
Date: Wed, 26 Sep 2007 08:54:27 -0400

I don't know for certain, but I think what is happening is that the rotors
are built to poor tolerances and they fit on the rotor shaft a little to
tight. When they heat up a bit, they develop a hair line crack = direct
short to shaft.

This particular rotor I have been running for about 2 years, (my car sat
idle for 9 months of that), however, I did notice that the rotor was
difficult to remove.  Can I see a crack? No.  I have used my multimeter to
try to see if I could find a current path - no luck.

I was unable to get a replacement rotor last night. I will have one tonight
and if it fires - we will know for sure.  I have replaced and/or verified
every other part.


On 9/26/07, Timothy H. Collins <thcollin@mtu.edu> wrote:
> Kevin,
> Would you classify the failures as electrical (something you could
> measure with a volt/ohm meter) or mechanical (a tolerance defect you
> could detect with a micrometer)??
> Tim
> At 07:33 AM 9/26/2007, K. Valentine wrote:
> >On Sep 26, 2007, at 7:00 AM, Timothy H. Collins wrote:
> >
> >>I don't understand why you guys experience "out-of-the-box" rotor
> >>failures.
> >
> >Tim,
> >
> >Neither do I.  As you say they are a simple design and they should work.
> >
> >Of the three rotor failures I've had, 2 of them were bad out of the
> >box.  They just wouldn't work.  The third worked for about 5 minutes
> >and quit.
> >
> >All of them were Lucas "green box" labeled made in India.
> >
> >I've had no problems with other brand and other manufacturer rotors.
> >
> >Kevin V.
> Tim Collins
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