For all of the comments it leads me to believe that I should be careful as to
which side of the rod I remove material from, so as to not throw the crank out
of
balance. Perhaps I should just put it together as it is and tell my daughter
that
when she breaks it she is just gonna be out a car. She is only 5 blocks from
school so I would make her go back to walking. She is just looking forward to
being able to drive one of those "cool cars" that her friends say her parents
drive.
IfixMGs@aol.com wrote:
> Brad,
> best non-dynamic balance compromise is simply find the lightest piston
> and carefully lighten the rest to match within a gram or two; next, find the
> lightest rod and repeat. I find that it contributes to a far smoother
> running engine at hi revs , esp if you are running a hotter cam. On the
> vintage racer engine, I also have the big/little ends checked for true and
> concentricity, and shot peen the rods; have all the valve springs checked
> for close to equal (+- 5 pounds) compression at .400" lift equivalent x
> rocker ratio. When all the springs have equal compression there are far less
> non-linear parasitic loads on the cam. Lastly, make sure the crank pulley
> is true. Since it is not a harmonic dampener, any runout will negate a lot of
> the other efforts - same with the flywheel.
> Mark
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