inside the elongate body 174 to the plunger 178 alternatively there may be hooks 182 on the elongate body 174 near the stop plate 176 when the plunger 178 is depressed the hooks 182 retract into recesses 186 in the conical front piece 172 in an alternative embodiment the hooks 182 retract into the elongate body 174 when the insertion instrument 32 has been inserted into the stator core 34 a predetermined distance as shown in fig1 the plunger 178 is depressed and the hooks 182 are retracted to allow the conductive coil 180 to slide back along the elongate body 174 of the insertion instrument 32 as shown in fig1 once the conductive coil 180 has been properly positioned inside the stator core 34 the insertion instrument 32 is withdrawn from contact with the conductive coil 182 leaving the conductive coil 182 in contact with an inside diameter of the stator core 34 fig1 as shown in fig1 19 an insulator may be present inside the stator core 34 a variety of different insulators may be used including a sheet film insulator powder insulator molded insulator or any other insulator that is relatively nonconductive if a sheet film insulator is used the sheet film insulator is wrapped about the inside diameter of the stator core 34 if a powder insulator is used the stator core 34 may be electrically charged by a charging tool and the powder is sprayed onto the stator core 34 the powder is then wiped off of the outside diameter of the stator core 34 and allowed to remain on the.