Vibration Analysis - Engine Balance

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    Special Tools
  • CH-51450-NVH  Oscilloscope Diagnostic Kit (w/NVH)

  • EL-38792-A  Electronic Vibration Analyzer (EVA) 2

  • EL-47955  Multi Diagnostic Interface MDI

For equivalent regional tools, refer to Special Tools and Equipment.

Test Description

The numbers below refer to the step number...

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You may preview the service manual table of contents by clicking below.

Service Manual Table of Contents

Document Tags

Document Title: Vibration Analysis - Engine Balance

oscilloscope

diagnostic

vibration

analyzer

multi

interface

table

sufficient

clearance

transmission

torque

converter

engine

flywheel

flexplate

excessive

lateral

runout

combined

mass

produce

disturbance

loose

crankshaft

cracked

damaged

determine

indexing

balance

rear

placing

aelectronic

sensor

onto

underside

edge

clutch

pressure

plate

driven

missing

weights

springs

cracks

warpage

damage

analysis

step

available

aids

vehicle

equipped

support

lifting

jacking

remove

cover

secure

position

lower

start

inspect

exhibit

following

looseness

conditions

block

wheels

apply

service

park

brake

with

scan

tool

installed

place

neutral

slowly

increase

level

noticeable

record

obtained

dominant

frequency

reading

significantly

reduced

eliminated

replace

complete

replacement

index

install

multi diagnostic

diagnostic interface

loose engine

engine crankshaft

aelectronic vibration

underside engine

plate clutch

clutch driven

driven plate

plate engine

damaged missing

missing balance

balance weights

vibration analysis

vibration diagnostic

diagnostic aids

step support

support vehicle

vehicle lifting

jacking vehicle

lower vehicle

start engine

looseness engine

installed start

place transmission

transmission neutral

neutral park

increase engine

level disturbance

disturbance noticeable

record engine

obtained scan

tool dominant

reading obtained

disturbance significantly

inspect engine

inspect clutch

loose damaged

damaged clutch

multi diagnostic interface

sufficient clearance exists

clearance exists transmission

exists transmission torque

isolate transmission engine

combined mass transmission

mass transmission torque

torque converter produce

converter produce disturbance

flywheel flexplate loose

flexplate loose engine

loose engine crankshaft

engine crankshaft cracked

alters balance relationship

aelectronic vibration analyzer

onto underside engine

pressure plate clutch

plate clutch driven

clutch driven plate

pressure plate engine

plate engine flywheel

indexing pressure plate

pressure plate flywheel

engine flywheel loose

flywheel loose engine

cracked damaged missing

damaged missing balance

missing balance weights

driven plate loose

plate loose springs

loose springs cracks

warpage damage missing

damage missing balance

produce disturbance mass

disturbance mass combined

damaged misaligned imbalanced

misaligned imbalanced produce

imbalanced produce disturbance

engine crankshaft balancer

engine accessory isolation

vibration diagnostic aids

step support vehicle

support vehicle lifting

vehicle lifting jacking

lifting jacking vehicle

flywheel flexplate torque

flexplate torque converter

secure transmission torque

step flywheel flexplate

flywheel flexplate avoid

flexplate avoid accidental

avoid accidental engagement

accidental engagement flywheel

engagement flywheel flexplate

start engine allow

engine allow engine

allow engine idle

inspect flywheel flexplate

flywheel flexplate exhibit

exhibit excessive lateral

following looseness engine

looseness engine crankshaft

installed start engine

place transmission neutral

transmission neutral park

slowly increase engine

level disturbance noticeable

obtained scan tool

scan tool dominant

tool dominant frequency

frequency reading obtained

disturbance significantly reduced

inspect engine flywheel

engine flywheel clutch

flywheel clutch surface

inspect clutch pressure

step remove clutch

remove clutch pressure

driven plate engine

engine flywheel following

flywheel following looseness

balance weights inspect

weights inspect clutch

driven plate following

plate following loose

following loose damaged

loose damaged clutch

damaged clutch driven

driven plate damper

plate damper springs

damaged clutch pressure

pressure plate diaphragm

plate diaphragm springs

balance weights conditions

weights conditions exist