Stator fried, what to use for insulation?

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    Insulation Stator
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SUMMARY

The discussion centers on repairing a fried stator/alternator in a motor, emphasizing the importance of proper insulation and mechanical support for the windings. Participants recommend using polyurethane varnish for insulation and Scotch 27 fiberglass electrical tape for mechanical protection. The resistance value of the insulation is deemed less critical, as long as the wires are adequately separated and protected. Successful rewinding and insulation techniques were shared, leading to a positive outcome with the motor's performance after repairs.

PREREQUISITES
  • Understanding of stator and alternator components in motors
  • Familiarity with electrical insulation materials, specifically polyurethane varnish and fiberglass tape
  • Knowledge of winding techniques for magnet wire
  • Basic electrical testing skills, including using an ohmmeter
NEXT STEPS
  • Research the properties and applications of Glyptal insulating varnish
  • Learn about the use of Kapton tape for high-temperature electrical insulation
  • Explore techniques for rewinding stators and ensuring proper insulation
  • Investigate common failure modes of rectifier-regulator modules in alternators
USEFUL FOR

Motor repair enthusiasts, electrical engineers, and anyone involved in the maintenance and restoration of vintage outboard motors will benefit from this discussion.

  • #31
..a [STRIKE]paranoid[/STRIKE] prudent boat operator.

i've hung out over the stern in Gulfstream changing sparkplugs myself...
 

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