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Old 04-20-2020, 05:16 AM
  #9  
bakerjw
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Join Date: Jul 2013
Location: N.E. Tennessee
Posts: 486
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My dad had an old 18HP Johnson that kept sheering the key. One solution was to use an aluminum beer can and make a shim that fits between the shaft and the flywheel. Other products like Quick Metal or LocTite offerings also can help.

I agree with other posts. Pull the flywheel and check everything underneath.
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