compression ratio NISSAN PRIMERA 1999 Electronic Repair Manual
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Page 341 of 2267

Symptom Matrix Chart
SYSTEM
Ð Basic engine
control systemSYMPTOM
Reference page
Feature of symptom, Check pointHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER
POOR ACCELERATION
HI IDLE
LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?
Fuel cutNO START (with first firing)
NO START (without first firing)
HARD TO START WHEN ENGINE IS COLD
HARD TO START WHEN ENGINE IS HOT
AT IDLE
DURING DRIVING
WHEN DECELERATING
BLACK SMOKE
WHITE SMOKENew CT/CS AA AB AC AD AE AF AG AH AJ AK AL AM AP HA
Injec-
tion
timingAdvancedqq
llqlqqlqEC-CD-38
Retardedqq
llqlqqlqEC-CD-38
Electric injection
pump mainframe
llllqqqqqlqqqllqqlq qqqÐ*1
Injection nozzleqqqqqqq
lqq qll lEC-CD-22 *2
Glow systemqq
ll l lEC-CD-118
Engine bodyqq
llqqqlqq qllqqqlEM-
section*3
EGR system
ll lEC-CD-129
Air cleaner and
ducts
ll lqMA-
section*4
l; High Possibility Item
q; Low Possibility Item
*1: Insufficient or excess amount. Governor malfunction may be the cause.
*2: Depends on open-valve pressure and spray pattern.
*3: Caused mainly by insufficient compression pressure.
*4: Symptom varies depending on off-position of air duct, etc.
TROUBLE DIAGNOSIS Ð General DescriptionCD20T
EC-47
Page 504 of 2267
![NISSAN PRIMERA 1999 Electronic Repair Manual DATA MONITOR (SPEC) MODENLEC1365S07
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow sen-
sor specification is displaye NISSAN PRIMERA 1999 Electronic Repair Manual DATA MONITOR (SPEC) MODENLEC1365S07
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow sen-
sor specification is displaye](/img/5/57377/w960_57377-503.png)
DATA MONITOR (SPEC) MODENLEC1365S07
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
MAS A/F SE-B1 [V]qqIThe signal voltage of the mass air flow sen-
sor specification is displayed.IWhen the engine is running, specifi-
cation range is indicated.
B/FUEL SCHDL
[msec]IªBase fuel scheduleº indicates the fuel injec-
tion pulse width programmed into ECM,
prior to any learned on board correction.IWhen the engine is running, specifi-
cation range is indicated.
A/F ALPHA-B1 [%]qIIndicates the mean value of the air-fuel ratio
feedback correction factor per cycle.IWhen the engine is running, specifi-
cation range is indicated.
IThis data also includes the data for
the air-fuel ratio learning control.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODENCEC0034S07
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJECTIONIEngine: Return to the original
trouble condition
IChange the amount of fuel injec-
tion using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IFuel injectors
IHeated oxygen sensor 1 (front)
IACV-AAC/V
OPENINGIEngine: After warming up, idle
the engine.
IChange the IACV-AAC valve
opening steps using CONSULT-
II.Engine speed changes according
to the opening steps.IHarness and connector
IIACV-AAC valve
ENG COOLANT
TEMPIEngine: Return to the original
trouble condition
IChange the engine coolant tem-
perature indication using CON-
SULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IEngine coolant temperature sen-
sor
IFuel injectors
IGNITION TIMINGIEngine: Return to the original
trouble condition
ITiming light: Set
IRetard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IªBase Idle Air Volume Initializingº
(Refer to EC-QG-33.)
ICamshaft position sensor
(PHASE)
ICrankshaft position sensor
(POS)
IEngine component parts and
installing conditions
POWER BAL-
ANCEIEngine: After warming up, idle
the engine.
IAir conditioner switch ªOFFº
IShift lever ªNº
ICut off each injector signal one
at a time using CONSULT-II.Engine runs rough or dies.IHarness and connector
ICompression
IInjectors
IPower transistor
ISpark plugs
IIgnition coils
COOLING FANIIgnition switch: ON
ITurn the cooling fan ªONº and
ªOFFº using CONSULT-II.Cooling fan moves and stops.IHarness and connector
ICooling fan motor
FUEL PUMP
RELAYIIgnition switch: ON
(Engine stopped)
ITurn the fuel pump relay ªONº
and ªOFFº using CONSULT-II
and listen to operating sound.Fuel pump relay makes the operat-
ing sound.IHarness and connector
IFuel pump relay
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONQG16I18DE
CONSULT-II (Cont'd)
EC-62
Page 664 of 2267

On Board Diagnosis LogicNCEC0202When a misfire occurs, the engine speed will fluctuate. If the engine speed fluctuates enough to cause the
CKP sensor signal to vary, The ECM can determine that a misfire is occurring.
Sensor Input Signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to
overheating, the MI will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MI will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MI will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MI will remain on.
If another misfire condition occurs that can damage the TWC, the MI will begin to blink again.
(After the first trip detection, the MI will light up from engine starting. If a misfire is detected that will cause
three way catalyst damage, the MI will start blinking.)
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect emissions), the MI will only light when
the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sensor signal
every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0300
0300IMultiple cylinders misfire.IImproper spark plug
IInsufficient compression
IIncorrect fuel pressure
IEGR volume control valve (If so equipped)
IThe injector circuit is open or shorted
IInjectors
IIntake air leak
IInsufficient ignition spark
ILack of fuel
IHeated oxygen sensor 1 (front) P0301
0301INo. 1 cylinder misfires.
P0302
0302INo. 2 cylinder misfires.
P0303
0303INo. 3 cylinder misfires.
P0304
0304INo. 4 cylinder misfires.
DTC Confirmation ProcedureNCEC0203CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
With CONSULT-II
1) Turn ignition switch ªONº, and select ªDATA MONITORº mode
with CONSULT-II.
NEF068A
DTC P0300 - P0304 NO.4-1CYLINDER MISFIRE,
MULTIPLE CYLINDER MISFIREQG16I18DE
On Board Diagnosis Logic
EC-222
Page 834 of 2267

Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment
NCEC0028PREPARATIONNCEC0028S01IMake sure that the following parts are in good order.
a)Battery
b)Ignition system
c)Engine oil and coolant levels
d)Fuses
e)ECM harness connector
f)Vacuum hoses
g)Air intake system
(Oil filler cap, oil level gauge, etc.)
h)Fuel pressure
i)Engine compression
j)Throttle valve
k)EVAP system
IOn models equipped with air conditioner, checks should
be carried out while the air conditioner is ªOFFº.
IWhen checking idle speed on models equipped with CVT,
ignition timing and mixture ratio, checks should be carried
out while shift lever is in ªPº or ªNº position.
IWhen measuring ªCOº percentage, insert probe more
than 40 cm (15.7 in) into tail pipe.
ITurn off headlamps, heater blower, rear window defogger.
IOn vehicles equipped with daytime running light systems,
set lighting switch to the 1st position to light only small
lamps.
IKeep front wheels pointed straight ahead.
IIf engine stops immediately after starting or idle condition
is unstable, perform the following to initialize IACV-AAC
valve:
a)Stop engine and wait 9 seconds.
b)Turn ignition ªONº and wait 1 second.
c)Turn ignition ªOFFº and wait 9 seconds.
IMake the check after the cooling fan has stopped.
BASIC SERVICE PROCEDURESR20DE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment
EC-34
Page 875 of 2267

ACTIVE TEST MODENCEC0034S07
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TIONIEngine: Return to the original
trouble condition
IChange the amount of fuel injec-
tion using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IFuel injectors
IHeated oxygen sensor 1 (front)
IACV-AAC/V
OPENINGIEngine: After warming up, idle
the engine.
IChange the IACV-AAC valve
opening steps using CONSULT-
II.Engine speed changes according
to the opening steps.IHarness and connector
IIACV-AAC valve
ENG COOLANT
TEMPIEngine: Return to the original
trouble condition
IChange the engine coolant tem-
perature indication using CON-
SULT-II.If trouble symptom disappears, see
CHECK ITEM.IHarness and connector
IEngine coolant temperature sen-
sor
IFuel injectors
IGNITION TIM-
INGIEngine: Return to the original
trouble condition
ITiming light: Set
IRetard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.IAdjust initial ignition timing
POWER BAL-
ANCEIEngine: After warming up, idle
the engine.
IAir conditioner switch ªOFFº
IShift lever ªNº
ICut off each injector signal one
at a time using CONSULT-II.Engine runs rough or dies.IHarness and connector
ICompression
IInjectors
IPower transistor
ISpark plugs
IIgnition coils
COOLING FANIIgnition switch: ON
ITurn the cooling fan ªONº and
ªOFFº using CONSULT-II.Cooling fan moves and stops.IHarness and connector
ICooling fan motor
FUEL PUMP
RELAYIIgnition switch: ON
(Engine stopped)
ITurn the fuel pump relay ªONº
and ªOFFº using CONSULT-II
and listen to operating sound.Fuel pump relay makes the operat-
ing sound.IHarness and connector
IFuel pump relay
SELF-LEARNING
CONTIIn this test, the coefficient of self-learning control mixture ratio returns to the original coefficient by touching
ªCLEARº on the screen.
PURG VOL
CONT/VIEngine: After warming up, idle
the engine.
IChange the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-II.Engine speed changes according
to the opening percent.IHarness and connector
IEVAP canister purge volume
control solenoid valve
IDLE AIR VOL
LEARNIIn this test, the idle air volume that keeps the engine within the specified range is memorized in ECM.
DTC CONFIRMATION MODENCEC0034S08SRT STATUS ModeNCEC0034S0801For details, refer to ªSYSTEM READINESS TEST (SRT) CODEº,
EC-SR-49.
SRT Work Support Mode
This mode enables a technician to drive a vehicle to set the SRT
while monitoring the SRT status.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONSR20DE
CONSULT-II (Cont'd)
EC-75
Page 1024 of 2267

On Board Diagnosis LogicNCEC0202If a misfire occurs, the engine speed will fluctuate. If the fluctuation is detected by the crankshaft position sen-
sor (OBD), the misfire is diagnosed.
Sensor Input Signal to ECM ECM function
Crankshaft position sensor (OBD) Engine speed On board diagnosis of misfire
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)
On the first trip that a misfire condition occurs that can damage the three way catalyst (TWC) due to
overheating, the MI will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MI will turn off.
If another misfire condition occurs that can damage the TWC on a second trip, the MI will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MI will remain on.
If another misfire condition occurs that can damage the TWC, the MI will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration)
For misfire conditions that will not damage the TWC (but will affect exhaust vehicle emissions), the MI will
only light when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP
sensor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P0300
0300IMultiple cylinders misfire.IImproper spark plug
IInsufficient compression
IIncorrect fuel pressure
IThe injector circuit is open or shorted
IInjectors
IIntake air leak
IThe ignition secondary circuit is open or
shorted
ILack of fuel
IHeated oxygen sensor 1 (front)
IDrive plate/Flywheel
IIncorrect distributor rotor P0301
0301INo. 1 cylinder misfires.
P0302
0302INo. 2 cylinder misfires.
P0303
0303INo. 3 cylinder misfires.
P0304
0304INo. 4 cylinder misfires.
DTC Confirmation ProcedureNCEC0203CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If ªDTC Confirmation Procedureº has been previously conducted,
always turn ignition switch ªOFFº and wait at least 9 seconds
before conducting the next test.
TESTING CONDITION:
IAlways perform at a temperature above þ10ÉC (14ÉF).
With CONSULT-II
1) Turn ignition switch ªONº, and select ªDATA MONITORº mode
with CONSULT-II.
2) Start engine and warm it up to normal operating temperature.
3) Turn ignition switch ªOFFº and wait at least 9 seconds.
4) Start engine again and drive at 1,500 - 3,000 rpm for at least
3 minutes.
Hold the accelerator pedal as steady as possible.
NOTE:
Refer to the freeze frame data for the test driving conditions.
5) If 1st trip DTC is detected, go to ªDiagnostic Procedureº,
EC-SR-225.
With GST
Follow the procedure ªWith CONSULT-IIº above.
NEF068A
DTC P0300 - P0304 NO.4-1CYLINDER MISFIRE,
MULTIPLE CYLINDER MISFIRESR20DE
On Board Diagnosis Logic
EC-224
Page 1541 of 2267

ENGINE MECHANICAL
SECTION
EM
CONTENTS
PRECAUTIONS...............................................................5
Parts Requiring Angular Tightening .............................5
Liquid Gasket Application Procedure ..........................5
PREPARATION................................................................6
Special Service Tools ..................................................6
Commercial Service Tools .........................................10
QG
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING................................................... 11
NVH Troubleshooting - Engine Noise ....................... 11
OUTER COMPONENT PARTS.....................................13
Removal and Installation ...........................................13
MEASUREMENT OF COMPRESSION PRESSURE....16
OIL PAN.........................................................................17
Components...............................................................17
Removal .....................................................................17
Installation ..................................................................18
TIMING CHAIN..............................................................19
Components...............................................................19
Removal .....................................................................20
Inspection...................................................................24
Installation ..................................................................24
OIL SEAL.......................................................................29
Replacement ..............................................................29
VALVE OIL SEAL.....................................................29
FRONT OIL SEAL....................................................29
REAR OIL SEAL......................................................30
CYLINDER HEAD..........................................................31
Components...............................................................31
Removal .....................................................................32
Disassembly...............................................................34
Inspection...................................................................34
CYLINDER HEAD DISTORTION...............................34
CAMSHAFT VISUAL CHECK....................................34
CAMSHAFT RUNOUT..............................................35
CAMSHAFT CAM HEIGHT.......................................35
CAMSHAFT JOURNAL CLEARANCE........................35
CAMSHAFT END PLAY............................................36
CAMSHAFT SPROCKET RUNOUT...........................36
VALVE GUIDE CLEARANCE....................................36
VALVE GUIDE REPLACEMENT................................37
VALVE SEATS.........................................................38
REPLACING VALVE SEAT FOR SERVICE PARTS.....38
VALVE DIMENSIONS...............................................39
VALVE SPRING.......................................................39
VALVE LIFTER AND VALVE SHIM.............................40
Valve Clearance.........................................................40
CHECKING.............................................................40
ADJUSTING............................................................41
Assembly ...................................................................43
Installation ..................................................................43
ENGINE REMOVAL.......................................................48
Removal and Installation ...........................................48
REMOVAL...............................................................49
INSTALLATION........................................................51
CYLINDER BLOCK.......................................................52
Components...............................................................52
Removal and Installation ...........................................53
Disassembly...............................................................53
PISTON AND CRANKSHAFT....................................53
Inspection...................................................................54
PISTON AND PISTON PIN CLEARANCE...................54
PISTON RING SIDE CLEARANCE............................54
PISTON RING END GAP..........................................54
CONNECTING ROD BEND AND TORSION...............55
CYLINDER BLOCK DISTORTION AND WEAR...........55
PISTON-TO-BORE CLEARANCE..............................56
CRANKSHAFT.........................................................57
BEARING CLEARANCE...........................................57
CONNECTING ROD BUSHING CLEARANCE
(Small end)
..............................................................59
REPLACEMENT OF CONNECTING ROD
BUSHING (Small end)
..............................................60
FLYWHEEL/DRIVE PLATE RUNOUT.........................60
EM
Page 1542 of 2267

Assembly ...................................................................60
PISTON..................................................................60
CRANKSHAFT.........................................................61
SR20DE
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING........................................64
NVH Troubleshooting - Engine Noise .......................65
OUTER COMPONENT PARTS.....................................66
COMPRESSION PRESSURE........................................69
Measurement of Compression Pressure ...................69
OIL PAN.........................................................................70
Removal .....................................................................70
Installation ..................................................................73
TIMING CHAIN..............................................................75
Components...............................................................75
Removal .....................................................................76
Inspection...................................................................79
Installation ..................................................................79
OIL SEAL REPLACEMENT..........................................84
VALVE OIL SEAL.....................................................84
FRONT OIL SEAL....................................................84
REAR OIL SEAL......................................................85
CYLINDER HEAD..........................................................86
Components...............................................................86
Removal .....................................................................87
Disassembly...............................................................89
Inspection...................................................................91
CYLINDER HEAD DISTORTION...............................91
CAMSHAFT VISUAL CHECK....................................91
CAMSHAFT RUNOUT..............................................92
CAMSHAFT CAM HEIGHT.......................................92
CAMSHAFT JOURNAL CLEARANCE........................92
CAMSHAFT END PLAY............................................93
CAMSHAFT SPROCKET RUNOUT...........................93
VALVE GUIDE CLEARANCE....................................93
VALVE GUIDE REPLACEMENT................................94
VALVE SEATS.........................................................95
REPLACING VALVE SEAT FOR SERVICE PARTS.....95
VALVE DIMENSIONS...............................................95
VALVE SPRING.......................................................96
HYDRAULIC LASH ADJUSTER................................96
ROCKER ARM, SHIM AND ROCKER ARM GUIDE.....97
Assembly ...................................................................97
Installation ..................................................................99
ENGINE REMOVAL.....................................................106
Components.............................................................106
Removal ...................................................................107
Installation ................................................................108
CYLINDER BLOCK.....................................................109
Components.............................................................109
Disassembly............................................................. 110
PISTON AND CRANKSHAFT.................................. 110Inspection................................................................. 110
PISTON AND PISTON PIN CLEARANCE................. 110
PISTON RING SIDE CLEARANCE.......................... 111
PISTON RING END GAP........................................ 111
CONNECTING ROD BEND AND TORSION............. 111
CYLINDER BLOCK DISTORTION AND WEAR......... 112
PISTON-TO-BORE CLEARANCE............................ 112
CRANKSHAFT....................................................... 113
BEARING CLEARANCE......................................... 114
CONNECTING ROD BUSHING CLEARANCE
(Small end)
............................................................ 116
REPLACEMENT OF CONNECTING ROD
BUSHING (Small end)
............................................ 117
REPLACEMENT OF PILOT BUSHING (M/T) OR
PILOT CONVERTER (CVT)
.................................... 117
FLYWHEEL/DRIVE PLATE RUNOUT....................... 117
Assembly ................................................................. 117
PISTON................................................................ 117
CRANKSHAFT....................................................... 118
CD20T
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................121
NVH Troubleshooting Chart - Engine Noise ...........122
OUTER COMPONENT PARTS...................................123
COMPRESSION PRESSURE......................................126
OIL PAN.......................................................................129
Removal ...................................................................129
Installation ................................................................129
TIMING BELT...............................................................131
Camshaft Timing Belt ..............................................131
REMOVAL.............................................................131
Inspection.................................................................133
Installation ................................................................134
Injection Pump Timing Belt ......................................135
REMOVAL.............................................................135
INSTALLATION......................................................136
OIL SEAL REPLACEMENT........................................138
VALVE OIL SEAL...................................................138
CAMSHAFT AND CRANKSHAFT OIL SEAL
INSTALLING DIRECTION AND MANNER
................138
CAMSHAFT OIL SEALS.........................................138
CRANKSHAFT FRONT OIL SEAL...........................139
CRANKSHAFT REAR OIL SEAL.............................139
CYLINDER HEAD........................................................140
Components.............................................................140
Removal ...................................................................141
Disassembly.............................................................141
Inspection.................................................................142
CYLINDER HEAD DISTORTION.............................142
VALVE GUIDE CLEARANCE..................................142
VALVE GUIDE REPLACEMENT..............................142
VALVE SEATS.......................................................143
VALVE SEAT REPLACEMENT................................143
CONTENTS(Cont'd)
EM-2
Page 1543 of 2267

VALVE DIMENSIONS.............................................144
VALVE SPRING SQUARENESS..............................145
VALVE SPRING PRESSURE LOAD........................145
VALVE LIFTER......................................................145
COMBUSTION CHAMBER REPLACEMENT............146
CAMSHAFT VISUAL CHECK..................................147
CAMSHAFT END PLAY..........................................147
CAMSHAFT RUNOUT............................................147
CAMSHAFT CAM HEIGHT.....................................147
CAMSHAFT JOURNAL CLEARANCE......................147
Valve clearance .......................................................148
Checking ..................................................................148
Adjusting ..................................................................149
Assembly .................................................................151
Installation ................................................................151
TURBOCHARGER.......................................................156
Removal ...................................................................156
Disassembly.............................................................157
Inspection.................................................................158
OIL AND WATER TUBES........................................158
ROTOR SHAFT.....................................................158
TURBINE WHEEL..................................................159
COMPRESSOR WHEEL.........................................159
WASTEGATE VALVE..............................................160
WASTEGATE VALVE ACTUATOR...........................160
Assembly .................................................................160
Installation ................................................................160
ENGINE REMOVAL.....................................................162
CYLINDER BLOCK.....................................................166
Components.............................................................166
Preparation ..............................................................167
Disassembly.............................................................167
PISTON AND CRANKSHAFT..................................167
Inspection.................................................................168
PISTON AND PISTON PIN CLEARANCE.................168
PISTON RING SIDE CLEARANCE..........................168
PISTON RING END GAP........................................169
MAIN BEARING CLEARANCE................................169
CONNECTING ROD BEARING CLEARANCE (Big
end)
......................................................................170
CONNECTING ROD AND PISTON PIN
CLEARANCE (Small end)
.......................................171
CONNECTING ROD BEND AND TORSION.............172
CRANKSHAFT.......................................................172
CYLINDER BLOCK DISTORTION...........................173
CYLINDER BORE..................................................173
PISTON-TO-BORE CLEARANCE............................174
Assembly .................................................................175
PISTON................................................................175
CRANKSHAFT.......................................................175
PISTON WITH CONNECTING ROD........................176
FLYWHEEL RUNOUT.............................................177QG
SERVICE DATA AND SPECIFICATIONS (SDS)........178
General Specifications .............................................178
Compression Pressure ............................................178
Cylinder Head ..........................................................178
Valve ........................................................................179
VA LV E...................................................................179
VALVE SPRING.....................................................179
VALVE LIFTER......................................................179
VALVE CLEARANCE..............................................179
VALVE GUIDE.......................................................180
AVAILABLE SHIMS................................................180
VA LV E S E AT.........................................................182
VALVE SEAT RESURFACE LIMIT...........................183
Camshaft and Camshaft Bearing ............................183
Cylinder Block ..........................................................184
Piston, Piston Ring and Piston Pin .........................185
PISTON................................................................185
PISTON RING.......................................................185
PISTON PIN..........................................................185
Connecting Rod .......................................................186
Crankshaft................................................................186
Main Bearing............................................................186
STANDARD...........................................................186
UNDERSIZE..........................................................186
Connecting Rod Bearing .........................................187
STANDARD SIZE...................................................187
UNDERSIZE..........................................................187
Bearing Clearance ...................................................187
Miscellaneous Components.....................................187
SR20DE
SERVICE DATA AND SPECIFICATIONS (SDS)........188
General Specifications .............................................188
Inspection and Adjustment ......................................188
COMPRESSION PRESSURE.................................188
CYLINDER HEAD..................................................188
VA LV E...................................................................189
CAMSHAFT AND CAMSHAFT BEARING.................192
CYLINDER BLOCK................................................192
PISTON, PISTON RING AND PISTON PIN..............193
CONNECTING ROD...............................................193
CRANKSHAFT.......................................................194
AVAILABLE MAIN BEARING...................................194
AVAILABLE CONNECTING ROD BEARING.............195
MISCELLANEOUS COMPONENTS.........................195
CD20T
SERVICE DATA AND SPECIFICATIONS (SDS)........196
General Specifications .............................................196
Inspection and Adjustment ......................................196
COMPRESSION PRESSURE.................................196
CYLINDER HEAD..................................................196
CONTENTS(Cont'd)
EM-3
Page 1548 of 2267

Tool number
Tool nameDescriptionEngine
application
SR CD QG
KV10107400
Piston pin press
stand
p1KV10107310
Center shaft
p2ST13040020
Stand
p3ST13040030
Spring
p4KV10107320
Cap
p5ST13040050
DriftNT013
Disassembling and
assembling piston pin
XÐX
KV10109300*
Pulley holder
NT628
Removing and installing camshaft
sprocket
ÐXÐ
a: 68 mm (2.68 in)
b: 8 mm (0.31 in) dia.
ED19600000*
Compression
gauge set
NT626
Measuring compression pressure
ÐXÐ
KV11100300
Nozzle holder
socket
No. 2-4 injection
nozzle holder
socket
NT563
Loosening and tightening injector
nozzle
ÐXÐ
KV119E0030
No. 1 injection
nozzle holder
socket
NT648
Loosening and tightening injector
nozzle
ÐXÐ
KV101111 0 0
Seal cutter
NT046
Removing oil pan
XXX
*: Special tool or commercial equivalent
PREPARATION
Special Service Tools (Cont'd)
EM-8