@lehighline posted:The turn is causing a short. The harness may be stretching and pulling. Take a real close look at the wiring for the pick ups and the ground screw on BOTH trucks. Try running the engine slowly with the room lights off. You may be able to see a spark at the offending location.
Chris
LVHR
I have found where it is sparking but can not quite determine the cause.
It is at the right side of the rear motor, toward the front, maybe 2 o'clock, with 12 o'clock being center front.
It does appear that the motor shell is making contact with the flat stationary truck support frame piece, just above the truck, and that is causing the sparks.
I see tiny weld marks at the base of the motor can, under the support frame, along with the gray spark-spray, on the bottom side of that same Frame, hat appears when there has been a lot of arching.
Could the motor can be hot, and arching when it touches the grounded frame?
Here are pics of the area and sparks: