Jerry Hey wrote:

Hi Paul,  there is an interference problem between the inside flange
of
the S beam and the punched out tabs that are bent inward on the back
of
the flywheel.  Reducing the width of the flange  between the bolts
about .375 in would take care of this.  What do  you recommend?
Jerry

I built the first one which looked beautiful until  I discovered I had
made a stupid error in establishing  the center of the beam.   Number
one is trash.    Jerry

I would cut the tabs off the flywheel. I believe they are there to cool
the torque converter. They actually consume a bit of HP at high RPM.

Perhaps you can use that first one later with a smaller center to
center
distance.

Paul Lamar

Do you agree the tabs will have to be milled off to exactly the same
height  so that no imbalances are created? The entire tab would not
have to be removed.  Just enough to gain clearance.   Jerry

I think you can do a good enough job with grinder. Just make a  template
to check the height of all of them. 

You could also  check the
flywheel by bolting it to a shaft and balancing it between two horizontal
knife edges. My hangar neighbor just got done balancing a 19 inch spinner
and backing plate for a Nemesis Next using that trick. Another even easier way
is to machine a hub and balance it on top of a vertical point made from
steel. Old wheel balancers were made that way. As I recall they had a
semi spherical bubble level to make sure it was horizontal. Maybe the local
gas station has one of those old wheel balancers lying around.
 
Paul Lamar
 
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