Vibration Analysis - Engine Balance

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Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. If sufficient clearance exists to separate the transmission torque converter from the engine flywheel/flexplate, then further tests can be used to isolate the transmission from the engine.
  2. An engine flyw...

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Service Manual Table of Contents

Document Tags

Document Title: Vibration Analysis - Engine Balance

table

sufficient

clearance

transmission

torque

converter

engine

flywheel

flexplate

excessive

lateral

runout

produce

disturbance

crankshaft

damaged

balance

rear

sensor

onto

underside

edge

imbalanced

balancer

vibration

analysis

step

suitably

support

vehicle

lifting

jacking

general

information

secure

position

lower

start

with

block

wheels

apply

service

park

brake

scan

tool

installed

place

neutral

slowly

increase

speed

level

which

noticeable

record

obtained

most

dominant

frequency

reading

replace

replacement

mechanical

complete

disturbance engine

underside engine

engine crankshaft

jacking vehicle

vehicle general

lower vehicle

start engine

with scan

place transmission

transmission neutral

neutral park

increase engine

engine speed

disturbance noticeable

record engine

obtained scan

tool most

reading obtained

replacement engine

engine mechanical

complete replacement

sufficient clearance exists

mass transmission torque

produce disturbance engine

disturbance engine flywheel

flywheel flexplate loose

flexplate loose engine

imbalanced produce disturbance

engine crankshaft harmonic

crankshaft harmonic balancer

vibration analysis engine

analysis engine accessory

engine accessory isolation

lifting jacking vehicle

jacking vehicle general

flywheel flexplate torque

flexplate torque converter

step flywheel flexplate

inspect flywheel flexplate

flywheel flexplate exhibit

missing balance weights

with scan tool

place transmission neutral

transmission neutral park

slowly increase engine

increase engine speed

obtained scan tool

scan tool most

frequency reading obtained

disturbance significantly reduced

flywheel flexplate engine

flexplate engine flywheel

engine flywheel replacement

flywheel replacement engine

replacement engine mechanical

vibration analysis road

analysis road testing