> Robert Leclercq wrote:
     > >
     > > Paul
     > > Do you have the dimensions for the Hatch 4 bolt exhaust flange modification?
     > Stud size, hole pattern, and thread depth?
     > > regards, Robert
     >
     > You are on your own. I have no drawings. I got pictures some place.
     > I'll dig them up. Here is one.
     >
     > Paul Lamar

            Paul and Robert,

                 If I remember correctly Richard Sohn made  a jig utilizing the stock exhaust

     studs to position the jig to modify his one rotor engine to the "Hatch Type" four

     bolt exhaust flange .



     Kelly Troyer

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