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n282rs(at)satx.rr.com
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 Posted: Tue Oct 30, 2007 10:12 am Post subject: Stator coil problem |
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I flew my plane from San Antonio Texas to Casa Grande AZ to the Copperstate
Fly-in. On the way back the engine developed a whirring noise at low RPM. On
the ground I found that when the prop was pulled through by hand the stator
would jiggle opposite of the prop direction, apparently being pulled toward
the approaching magnet. When I removed the stator assembly, 3 of the stator
mounting screws fell out. They had broken off. The forth screw broke as I
was trying to remove it. I don't see anything loose like a magnet or the
flywheel.
Has anyone experienced this problem in the past? If so what was needed to
keep it from happening again.? At the moment, I'm thinking about getting
stainless steel screws to replace the standard screws that broke. I was also
going to check the flywheel bolts while I have access to them and anything
else I can get my hands on.
Randy Stout
San Antonio TX
www.geocities.com/n282rs
n282rs at satx.rr.com
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dredmoody(at)cox.net
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| Posted: Tue Oct 30, 2007 11:33 am Post subject: Stator coil problem |
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Ask the engine manufacturer what screws to use for the stator. Stainless steel may be weaker than the ones called for. Also ask if a Loctite product (and which one) should be used on those screws.
Was your wife on board this time? She may begin to think she's snake bit.
Dred
---- Randy Stout <n282rs(at)satx.rr.com> wrote:
| Quote: |
I flew my plane from San Antonio Texas to Casa Grande AZ to the Copperstate
Fly-in. On the way back the engine developed a whirring noise at low RPM. On
the ground I found that when the prop was pulled through by hand the stator
would jiggle opposite of the prop direction, apparently being pulled toward
the approaching magnet. When I removed the stator assembly, 3 of the stator
mounting screws fell out. They had broken off. The forth screw broke as I
was trying to remove it. I don't see anything loose like a magnet or the
flywheel.
Has anyone experienced this problem in the past? If so what was needed to
keep it from happening again.? At the moment, I'm thinking about getting
stainless steel screws to replace the standard screws that broke. I was also
going to check the flywheel bolts while I have access to them and anything
else I can get my hands on.
Randy Stout
San Antonio TX
www.geocities.com/n282rs
n282rs at satx.rr.com
|
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n282rs(at)satx.rr.com
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| Posted: Tue Oct 30, 2007 2:18 pm Post subject: Stator coil problem |
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No, she's been too sick to fly with me.
Randy
--
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