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Vanguard starter drive
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04-28-2016, 10:35 AM
ol'George
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Join Date: Oct 2009
Location: MI
Posts: 6,625
The spring keeps the gear from vibrating back into the ring gear causing a noise/wear.
The helix on the inside of the pinion gear is what retracts the pinion when the engine is started.
The spring keeps it retracted.
ol'George
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