The largest part of the insert is where the butterfly will be.  The

extra wall thickness  is for the  butterfly shaft bushings.  The
width of this can be cut down considerably from 1.250 to .5 inches.
The outboard end is 2" o.d. and internally tapers from 1.75 i.d down
to 1.5 i.d. for the butterfly.  The part sticking through the housing
will be trimmed to a flush fit and squared up but I don't want to to
do that until we are working on a 13B housing as the insert will
penetrate that housing deeper.
--
Jerry Hey

Looks good Jerry!  Keep up the good work!

Steve -in Michigan

 
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