Chapter15balancing

Chapter15balancing - Balancing engines For smoother engine...

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Balancing engines Forces multiply as engine RPM increase Copyright 2003 Gary Lewis – Dave Capitolo
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Balancing engines First step in diagnosing engine vibration Isolate engine mounts/insulators
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Balancing engines Weight groups for balancing Rotating weights Housing bore end of rods Rod journals Rod bearings Oil Reciprocating weights Pistons, pins, rings, locks Pin end of rods
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Balancing engines Weighing connecting rods Record rotating weight of rod Record reciprocating weight of rod
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Balancing engines Weighing piston assemblies Record weight of . . . Piston Pin Ring set Locks
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Balancing engines Balancing connecting rods Equalize the housing bore end of the rods first Equalize the pin end of the rods
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Balancing engines Balancing piston assemblies Reduce piston assembly weights from . . . Piston or . . Pin
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Balancing engines Vibration forces in 4 cyl. in-line Primary vibration Up and down vibration Counterweights used to cancel Secondary vibration Differences in acceleration rates Balance shafts used to counteract
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Balancing engines In-line crankshaft design Counterweights are equal in force to crank pins
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Chapter15balancing - Balancing engines For smoother engine...

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