Generally
1 set of starter motor carbon containing 4 pieces of carbon, that's what you need for 1 starter motor.
125 kr
1 set of starter motor carbon containing 4 pieces of carbon, that's what you need for 1 starter motor.
Grind or turn the copper collector carefully. It is the part of the rotor that the carbon pushes against. But you should not trace, i.e. grind, the insulation between the copper plates on a Delco starter motor.