Clean Cut Creations
08-26-2010, 11:48 AM
We have a Canadian Pontiac Parisienne at the shop that we just finished with the body and paint. This car is built on a 1965 impala chassis and uses nearly all of the wiring for an impala, so diagnosis can be made with an impala wiring diagram.
We are having trouble with the starter. We have installed a high torque starter on the factory (born with) 327 and we were having intermittent issues with the starter drive gear meshing with the flywheel. All wiring is in order and connected correctly from the dash to the starter. New battery positive cable, new ground cable kit installed (cleaned bolts and sanded the mounting points on the frame and valve covers), new battery, new starter. The starter will start the flywheel only when the drive gear is meshed EXACTLY with the flywheel. Other times you hear the drive come out and contact the flywheel and just sit there. Not spining, not "self centering/aligning" itself to the flywheel...nothing but "DINK". This may happen two or three times in a row or the drive may engage correctly with very little noise two or three times in a row, then "DINK"....No pattern at all.
Thinking the drive gear was not loose enough on the shaft on a high torque, we even switched back to a rebuilt stock style starter. Same problem. I traced the purple ignition wire to the neutral safety switch and all looks fine. 12.3 volts at the key switch. Try to start the car and I get 9.0 volts at the switch during engagement. Take the wiring off of the starter at the S terminal and try to start and I get 12.3 volts. I even "jumped over" the neutral saftey switch, thinking that was a problem but that didn't change anything.
What gives? Am I over looking something? What should the voltage be at the S terminal during crank? Is this voltage drop common? I'm pulling my hair out over here and the customer is blowing up the phone...This one has me stumped.....
https://static1.pt-content.com/images/pt/2010/08/4809755518_1ae877c820_b-1.jpg
We are having trouble with the starter. We have installed a high torque starter on the factory (born with) 327 and we were having intermittent issues with the starter drive gear meshing with the flywheel. All wiring is in order and connected correctly from the dash to the starter. New battery positive cable, new ground cable kit installed (cleaned bolts and sanded the mounting points on the frame and valve covers), new battery, new starter. The starter will start the flywheel only when the drive gear is meshed EXACTLY with the flywheel. Other times you hear the drive come out and contact the flywheel and just sit there. Not spining, not "self centering/aligning" itself to the flywheel...nothing but "DINK". This may happen two or three times in a row or the drive may engage correctly with very little noise two or three times in a row, then "DINK"....No pattern at all.
Thinking the drive gear was not loose enough on the shaft on a high torque, we even switched back to a rebuilt stock style starter. Same problem. I traced the purple ignition wire to the neutral safety switch and all looks fine. 12.3 volts at the key switch. Try to start the car and I get 9.0 volts at the switch during engagement. Take the wiring off of the starter at the S terminal and try to start and I get 12.3 volts. I even "jumped over" the neutral saftey switch, thinking that was a problem but that didn't change anything.
What gives? Am I over looking something? What should the voltage be at the S terminal during crank? Is this voltage drop common? I'm pulling my hair out over here and the customer is blowing up the phone...This one has me stumped.....
https://static1.pt-content.com/images/pt/2010/08/4809755518_1ae877c820_b-1.jpg