[Vwdiesel] Engine Balancing
Justin and Michella Bennett
cjb at midrivers.com
Thu Mar 22 12:44:02 EDT 2007
Cannot hurt. Any time you can reduce vibration the longevity of the
engine and chassis will increase. In aircraft we static balance the
reciprocating parts and then once it is all assembled then we do a
dynamic balance. The static balance is basically weighting
everything and making everything match. The dynamic is done with
a machine that measures vibration (inches per second) of the engine
while running and the "clock" angle that it is happening at. Then the
box tells you where and how much weight to add to reduce the vibs. Not
sure if anyone dynamic balances auto engines, but it is very great on
the aircraft. Seen one old crop duster that vibrated so bad it was
loosening rivets in the wings and tail.
> I'm rebuilding an 85 TD motor for my daily driver. I'm wondering about the
> need for balancing the moving parts. I don't want to spend the extra money
> if it's not necessary.
> New Kolbenshmidt Pistons, resized the big end of the Rods with new bushings
> and Polished Crank. Probably use the low miles Pressure Plate and Disc from
> the engine it'll be replacing.
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