its fairly normal yes , its contoled sometimes by a shim .... which is a tear down or sump off . and also different thickness of base/crankcase gaskets .
so if its not causing you a problem then less that 1mm isnt a worry .

o.f.f

Entire Thread
Subject	Posted By	Posted
Briggs & Stratton 450 Series Crank Play	victa	02/04/16 05:28 PM
Re: Briggs & Stratton 450 Series Crank Play	vccomm	02/04/16 07:23 PM
Re: Briggs & Stratton 450 Series Crank Play	victa	02/04/16 09:19 PM

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