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Author Topic: chain theory  (Read 183 times)

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Offline 660magnum

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Re: chain theory
« on: September 11, 2014, 11:01:52 pm »
With the Makita 6421 the adjuster on the oil pump is nylon and acts as a "Stop" for the oscillating motion of the oil pump rotating shaft. This adjust wears down and the oil pump shaft eventually begins to rotate in a different area. I don't think the stroke length is materially changed due to this wear though? I always put a new kit in the pump if I tear into that area or have the clutch off.
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