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Old 03-26-2001, 09:12 AM
Coming back from burnout
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Once in a while , i turn the ignition key,I hear the starter motor spin, but i dont believe the solenoid has driven the gear to mate properly to the Flywheel.
I hear the motor spin, but feel nothing coming from the gear to the Flywheel.
Does this mean the starter motor solenoid is going bad-not doing the plunging thing- or that the solenoid is plunging, but the gear is just missing the correct poistion on the clutch?
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Old 03-26-2001, 09:38 AM
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The initial starting function begins with the power aplied to the winding of the solenoid. Part of the ground for this circuit goes through the brushes and armature. As the solenoid coil becomes a magnet the plunger is pulled back. This action shoves the gear into the flywheel. When the plunger gets to the end of its stroke it switches the high current switch that carries the voltage from the battery cable to the heavy lead into the starter. The point to this is that if the starter is spinning the plunger has plunged and thats all the solenoid does.

There are three possibilities: first is the fulcrum bolt is loose in the starter, second the one way clutch is freewheeling, and third there is a section of gear missing.
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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