Diesel engine course-K-4.ppt

8/18/2019 Diesel engine course-K-4.ppt

1/50

Turbocharger


2/50

Exhaust

Driven

Turbocharger


3/50

Airflow in a dryair cleaner


4/50

A dry cleanerwith a cyclonic

pre-cleaner


5/50

An oil bathtype air

cleaner


6/50

A turbocharger

with a waste

gate


7/50

IGNITION SYSTEM


8/50

Ignition System


9/50

Spark plug seal washer

Replace seal washer whenever you re-install spark plugs

Spark plug sealing washers must !e replace" whenever a spark plug is re-installe" in the engine

Spark plug removal !egins !y !lowing compresse" air aroun" the spark plug area to remove any

loose "irt or "e!ris This helps to ensure that contaminants will not #all into the com!ustion

cham!er once the spark plug is remove" $sing a spark plug removal socket% remove the spark plug

#rom the cylin"er hea"% make care#ul inspection o# the spark plug Spark plugs can !e an in"icator

o# how the engine is operating I# the spark plugs are "etermine" to !e in a reusa!le con"ition%

remove an" "iscar" the sealing washers an" replace with new ones It is important #or proper spark

plug operation to replace the seal washer The seal washer is crusha!le to create a goo" seal

ensuring optimum heat trans#er !etween plug an" cylin"er hea" I# these sealing washers arereuse"% proper sealing an" heat trans#er may not occur% which coul" result in spark plug pro!lems

an"&or lea" to engine "amage

Spark plug electro"es gaps are pre-set at the #actory% !ut they shoul" !e checke" an"&or re-set prior

to installation 'i##erent applications or engine mo"els may use the same part num!er spark plug%

!ut may re(uire "i##erent spark plug gap It is important that the proper plug an" gap !e use" #or

the application #or which they have !een inten"e"


10/50

A good looking A good looking

used RM77Nused RM77N


11/50

Normal usedNormal used

Stitt plugStitt plug


12/50

Is thisIs this CYLIDE!CYLIDE!

firing?firing?


13/50

Is thisIs this "L#$"L#$

firing?firing?


14/50

MeltedMeltedelectrodeselectrodes

spellspell

troubletrouble

Is this cylinder firing?


15/50

ColdCold HotHot

lug Heat Rangelug Heat Range


16/50


17/50

Alumi Aluminumnum??


18/50

Antisie!e Antisie!e

"amage"amage


19/50

#se only a#se only a

small amountsmall amount


20/50

Spark /lug Installation

+ Threa" in spark plug !y han"

+ Tor(ue 01 2 03 #t l!s


21/50

"irty gas"irty gas

can causecan causeproblemsproblems

$ridging "eposits


22/50


23/50

.actors That Raise .iring 4oltage

+ )ol" Operating Temperatures

+ *igh )ompression Ratios

+ Engine ,oa"

+ 5i"e Electro"e Gap

+ Roun"e" Electro"es

+ 'eposits

+ Reverse /olarity+ )O6 In The .uel Gas


24/50

.actors In#luence the li#e o# a spark plug

+ Engine spee"

+ Engine loa"

+ .uel composition


25/50

Spark /lug Summary

+ *eavy sh 'eposits

+ *eavy Oil 'eposits

+ *igh Temperature

+ Improper Tor(uing

+ Gap 7ri"ging


26/50

"revious agneto"revious agneto

drive discdrive disc

Current floating drive discCurrent floating drive disc


27/50

Magneto 'rive 'isc

o Magneto "rive "isc shoul" !e inspecte"

every 8 months an" replace" i# any wear is

notice"o timing #luctuation o# 9 : "egrees might

!e an in"ication o# a worn "rive "isc


28/50


29/50

Current %lange Mounted

Ignition Coil

Coil .'/ !ing

,ounting and $rounding )lange


30/50

*hielded ignition wires and integral coils*hielded ignition wires and integral coils


31/50

Chec0 the condition of your Chec0 the condition of your

1iring1iring


32/50

CheckCheck&our &our

'rounds'roundsMake sure that the

connections areclean and tight


33/50

Chec0ing plugChec0ing plug

to coil continuityto coil continuity


34/50


35/50


36/50

)ustom Engine )ontrol

;)E)<Ignition Mo"ule


37/50

)E) Ignition Systems May

Some 'ay Replace Magnetos

)ompletely

(he Model ( had a magneto


38/50

General 'escription

+ Microcircuit !ase"

+ 'igital

+ No moving parts

+ Re(uires no maintenance


39/50

)E) Ignition Mo"ule Operation

+ ppro=imately 981 4') output

+ luminum timing "isc operates at one hal#

engine spee"


40/50

Ignition System )osts

)E) > ltronic? III or .M

@111


41/50

'SM'etonation Sensing Mo"uleInter#aces 5ith The Ignition Mo"ule

23 pin interface connection for the D*,


42/50

/ower Re(uirements

+ 60 4olt Nominal ') /ower Supply

+ 6 mp )ontinuous

+ ,ess than 6 volt peak to peak rippleA


43/50

Operating 4oltage

StartingB 91 4olts ') Minimum

RunningB 96-6C D6F Ma=imum


44/50

Installation Recommen"ations

+ Two 91 amp #uses DoptionalF

+ Ma=imum o# 93 #eet D031 cmF #rom #arthest coil

+ Install using ru!!er isolators+ Ma=imum 931 . D83° C) case temperature

+ )ase must have a separate groun"


45/50

"ic0up $aps"ic0up $aps

4ac0 out the %all effect4ac0 out the %all effect

pic0up countercloc0wisepic0up countercloc0wise

563 turn fro disc contact563 turn fro disc contact

)


46/50

To CEC Ignition ,odule

"ic0up

73 Cylinder

)

72 Cylinder

Index ,agnet

8 Cylinder &%" Tiing Disc8 Cylinder &%" Tiing Disc


47/50

Tiing *witch Covers

.D/ Lead Connection "oint


48/50

Timing Switch /ositions

ctive Switch ;'< ,ea" Status

Groun"e"

7 Open


49/50

Each stop Din"entF on the timing

switches e(uals one "egree o#timing change

;1< > Hero "egrees o# timing change;93 93 "egrees o# timing change


50/50

Diesel engine course-K-4.ppt

Documents

Transcript of Diesel engine course-K-4.ppt