check engine NISSAN PRIMERA 1999 Electronic Repair Manual

PressureNCEM0019S1302Check valve spring pressure at specified spring height.
Pressure:
Standard
370.0 N (37.73 kg, 83.19 lb) at 23.64 mm
(0.9307 in)
Limit
More than 347.8 N (35.46 kg, 78.19 lb) at
23.64 mm (0.9307 in)
If it exceeds the limit, replace spring.
VALVE LIFTER AND VALVE SHIMNCEM0019S161. Check contact and sliding surfaces for wear or scratches.
2. Check diameter of valve lifter and valve lifter guide bore.
Valve lifter outside diameter:
29.960 - 29.975 mm (1.1795 - 1.1801 in)
Lifter guide inside diameter:
30.000 - 30.021 mm (1.1811 - 1.1819 in)
Clearance between valve lifter and valve lifter guide:
0.025 - 0.065 mm (0.0010 - 0.0024 in)
If it exceeds the limit, replace valve lifter or cylinder head which
exceeds the standard diameter tolerance.
Valve ClearanceNCEM0041CHECKINGNCEM0041S01Check valve clearance while engine is warm and not running.
1. Remove rocker cover.
2. Remove all spark plugs.
3. Set No. 1 cylinder at TDC on its compression stroke.
IAlign pointer with TDC mark on crankshaft pulley.
ICheck that valve lifters on No. 1 cylinder are loose and valve
lifters on No. 4 are tight.
EM113
SEM160D
SEM161D
SEM920F
SEM921F Pointer
Timing
mark
Crankshaft pulley
CYLINDER HEADQG
Inspection (Cont'd)
EM-40

IIf not, turn crankshaft one revolution (360É) and align as
described above.
4. Check only those valves shown in the figure.
IUsing a feeler gauge, measure clearance between valve lifter
and camshaft.
IRecord any valve clearance measurements which are out of
specification. They will be used later to determine the required
replacement adjusting shim.
Valve clearance for checking (Hot):
Intake
0.21 - 0.49 mm (0.008 - 0.019 in)
Exhaust
0.30 - 0.58 mm (0.012 - 0.023 in)
5. Turn crankshaft one revolution (360É) and align mark on crank-
shaft pulley with pointer.
6. Check only those valves shown in the figure.
IUse the same procedure as mentioned in step 4.
7. If all valve clearances are within specification, install the fol-
lowing parts:
IRocker cover
IAll spark plugs
ADJUSTINGNCEM0041S02Adjust valve clearance while engine is cold.
1. Turn crankshaft. Position cam lobe upward on camshaft for
valve that must be adjusted.
2. Place Tool (A) around camshaft as shown in figure.
Before placing Tool (A), rotate notch toward center of cylinder
head. (See figure.) This will simplify shim removal later.
CAUTION:
Be careful not to damage cam surface with Tool (A).
SEM922F INT
EXH
Engine front
No. 4 No. 3 No. 2 No. 1
.SEM139D
SEM923F INT
EXH
Engine front
No. 1
No. 2
No. 3 No. 4
SEM941F Tool (A) KV10115110
Notch
CYLINDER HEADQG
Valve Clearance (Cont'd)
EM-41

8. Install new shim using a suitable tool.
IInstall with the surface on which the thickness is stamped
facing down.
9. Place Tool (A) as explained in steps 2 and 3.
10. Remove Tool (B).
11. Remove Tool (A).
12. Recheck valve clearance.
Valve clearance:
Unit: mm (in)
For adjusting For checking
HotCold* (reference
data)Hot
Intake0.32 - 0.40
(0.013 - 0.016)0.25 - 0.33
(0.010 - 0.013)0.21 - 0.49
(0.008 - 0.019)
Exhaust0.37 - 0.45
(0.015 - 0.018)0.32 - 0.40
(0.013 - 0.016)0.30 - 0.58
(0.012 - 0.023)
*: At a temperature of approximately 20ÉC (68ÉF)
Whenever valve clearances are adjusted to cold specifications, check that
the clearances satisfy hot specifications and adjust again if necessary.
AssemblyNCEM00201. Install valve component parts.
IAlways use new valve oil seal. Refer to EM-29.
IBefore installing valve oil seal, install valve spring seat.
IAfter installing valve components, tap valve stem tip with
a plastic hammer to assure a proper fit.
IInstall valve spring (narrow pitch at both ends of spring)
with either end toward cylinder head.
InstallationNCEM00211. Before installing cylinder head gasket, apply a continuous
bead of liquid gasket to mating surface of cylinder block.
2. Install cylinder head gasket.
IWhen installing cylinder head with manifolds, use new
cylinder head gasket.
SEM146D Tool (B)
Suitable tool
SEM147D Tool (B)
Tool (A)
AEM293 Narrow pitch
Wide pitch
Narrow pitch
SEM899F
Liquid gasket
2.0 - 3.0 mm
(0.079 - 0.118 in) dia.
Engine
front
CYLINDER HEADQG
Valve Clearance (Cont'd)
EM-43

5. Install camshaft brackets.
IMake sure camshaft brackets are aligned as marked dur-
ing disassembly.
IApply new engine oil to bolt threads and seat surface.
ITighten camshaft bracket bolts in the following steps.
a Tighten bolts9-12,then1-8.
2.0 N×m (0.204 kg-m, 17.7 in-lb)
b Tighten bolts1-12.
5.9 N×m (0.60 kg-m, 52.2 in-lb)
c Tighten bolts1-12.
9.8 - 11.8 N×m (1.00 - 1.20 kg-m, 86.7 - 104.4 in-lb)
IIf any part of valve assembly or camshaft is replaced,
check valve clearance according to reference data.
After completing assembly check valve clearance. Refer
to ªCheckingº and ªAdjustingº in ªVALVE CLEARANCEº
(EM-40).
Reference data valve clearance (Cold):
Intake
0.25 - 0.33 mm (0.010 - 0.013 in)
Exhaust
0.32 - 0.40 mm (0.013 - 0.016 in)
6. Install camshaft sprocket.
ISet timing chain by aligning mating marks with those of
camshaft sprockets.
7. Install camshaft sprocket bolts to correct torque.
IApply new engine oil to bolt threads and seat surface.
SEM903F No.
Intake
mark
Front markIntake side
No.
Exhaust
mark
Front
mark
Exhaust side Engine front
SEM904F Engine front
Tighten in numerical order.
SEM905F Mating
mark
Mating
mark
Camshaft sprocket
(EXH) Camshaft sprocket
(INT)
SEM906F
CYLINDER HEADQG
Installation (Cont'd)
EM-45

Power Steering Fluid and Linesº, ªCHASSIS AND BODY
MAINTENANCEº).
21. Drive belts.
For adjusting drive belt deflection, refer to MA section (ªCheck-
ing Drive Beltsº, ªENGINE MAINTENANCEº).
22. Reinstall parts in reverse order of removal.
CYLINDER HEADQG
Installation (Cont'd)
EM-47

NVH Troubleshooting Ð Engine Noise
Use the chart below to help you find the cause of the symptom.
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
Location of
noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemReference
page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
To p o f
Engine
rocker
cover
Cylinder
headTicking or
clickingC AÐA BÐRocker
noiseHydraulic lash adjuster EM-96
Rattle C A Ð A B CCamshaft
bearing
noiseCamshaft journal clear-
ance
Camshaft runoutEM-92
Crankshaft
Pulley
Cylinder
block (Side
of Engine)
Oil panSlap or
knockÐAÐB BÐPiston pin
noisePiston and piston pin
clearance
Connecting rod bushing
clearanceEM-110, 116
Slap or
rapAÐÐB B APiston slap
noisePiston-to-bore clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend and
torsionEM-111, 112
Knock A B C B B BConnecting
rod-bearing
noiseConnecting rod bearing
clearance (Big end)
Connecting rod bushing
clearance (Small end)EM-115, 116
Knock A B Ð A B CMain bear-
ing noiseMain bearing oil clear-
ance
Crankshaft runoutEM-113, 114
Front of
engine
Timing
chain coverTapping or
tickingAAÐBBBTiming
chain and
chain ten-
sioner noiseTiming chain cracks and
wearEM-132
Front of
EngineSqueak or
fizzingA BÐBÐCOther drive
belts (stick-
ing or slip-
ping)Drive belt deflectionMA Section
(ªChecking
Drive Beltsº,
ªENGINE
MAINTE-
NANCEº) CreakingABABABOther drive
belts (slip-
ping)Idler pulley bearing
operation
Squall or
creakABÐBABWater pump
noiseWater pump operationLC Section
(ªWater Pump
Inspectionº,
ªENGINE
COOLING
SYSTEMº)
A: Closely related B: Related C: Sometimes related Ð: Not related
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGSR20DE
NVH Troubleshooting Ð Engine Noise
EM-65

Measurement of Compression Pressure
1. Warm up engine.
2. Turn ignition switch off.
3. Release fuel pressure.
Refer to ªReleasing Fuel Pressureº in EC-section.
4. Remove all spark plugs.
5. Disconnect distributor center cable.
6. Attach a compression tester to No. 1 cylinder.
7. Depress accelerator pedal fully to keep throttle valve wide
open.
8. Crank engine and record highest gauge indication.
9. Repeat the measurement for each cylinder.
IAlways use a fully-charged battery to obtain specified
engine revolution.
Compression pressure:
kPa (bar, kg/cm2, psi)/300 rpm
Standard 1,275 (12.75, 13.0, 185)
Minimum 1,079 (10.79, 11.0, 156)
Difference limit between cylinders 98 (0.98, 1.0, 14)
10. If cylinder compression in one or more cylinders is low:
A: pour a small amount of engine oil into cylinders through
spark plug holes.
B: retest compression.
IIf adding oil helps compression, piston rings may be worn
or damaged. If so, replace piston rings after checking pis-
ton condition.
IIf pressure stays low, a valve may be sticking or seating
badly. Inspect and repair valve and valve seat. (Refer to
SDS). If valve or valve seat is damaged excessively,
replace them.
IIf compression stays low in two cylinders that are next to
each other:
A. The cylinder head gasket may be leaking, or
B. Both cylinders may have valve component damage.
Inspect and repair as necessary.
SEM968C
NEM118 20 mm (0.79 in) dia
Compression tester rubber adaptor
diameter should be less than 20 mm (0.79 in)
to prevent fouling with cylinder head.
COMPRESSION PRESSURESR20DE
Measurement of Compression Pressure
EM-69

24. Remove timing chain guides.
25. Remove camshaft sprockets.
IFor retiming, apply paint mark to timing chain matched
with mating marks of camshaft sprockets.
26. Remove timing chain and crankshaft sprocket.
InspectionNLEM0127Check for cracks and excessive wear at roller links. Replace
chain if necessary.
InstallationNLEM01281. Install crankshaft sprocket on crankshaft.
IMake sure mating marks on crankshaft sprocket face front
of engine.
2. Position crankshaft so that No. 1 piston is set at TDC and key
way is at 12 oclock. Fit timing chain on crankshaft sprocket,
aligning the mating marks.
SEM982CA
SEM034G
SEM984C
SEM470E Engine
frontCrankshaft
side
Crankshaft sprocket
SEM985C
TIMING CHAINSR20DE
Removal (Cont'd)
EM-79

18. Remove old liquid gasket from mating surfaces of rocker cover
and cylinder head.
19. Apply a continuous bead of liquid gasket to rocker cover gas-
ket and cylinder head as shown in the illustrations.
IUse Genuine RTV silicone sealant Part No. 999MP-A7007
or equivalent.
20. Install rocker cover and oil separator.
IBe sure to install washers between bolts and rocker cover.
ITightening procedure
STEP 1: Tighten bolts1-10-11-13-8inthat order.
STEP 2: Tighten bolts1-13inthat order.
:8-10N×m (0.8 - 1.0 kg-m, 69 - 87 in-lb)
21. Install the following parts:
ISpark plugs and leads
IWater pump pulley and drive belts.
For adjusting drive belt deflection, refer to MA-28, ªChecking
Drive Beltsº.
IRefit lower radiator hose and cylinder block drain plug.
IRefill with engine coolant. Refer to MA-29, ªChanging Engine
Coolantº.
IFront RH wheel
IEngine under cover
22. Connect the following:
IVacuum hoses
IWire harnesses and connectors
BEM006 Engine
front
Unit: mm (in)3 (0.12)(0.39)
(0.39)
SEM051G 3mm
(0.12 in) dia.
SEM052G Engine
front
Tighten in numerical order.Rocker cover
TIMING CHAINSR20DE
Installation (Cont'd)
EM-83

7. Remove valve components with Tool.
8. Remove valve oil seal with a suitable tool.
Inspection
CYLINDER HEAD DISTORTION
Head surface flatness:
Standard
Less than 0.03 mm (0.0012 in)
Limit
0.1 mm (0.004 in)
If beyond the specified limit, replace or resurface.
Resurfacing limit:
The limit of cylinder head is determined by the cylinder block
resurfacing in an engine.
Amount of cylinder head resurfacing is ªAº.
Amount of cylinder block resurfacing is ªBº.
The maximum limit is as follows:
A + B = 0.2 mm (0.008 in)
After resurfacing cylinder head, check that camshaft rotates freely
by hand. If resistance is felt, cylinder head must be replaced.
Nominal cylinder head height:
136.9 - 137.1 mm (5.390 - 5.398 in)
CAMSHAFT VISUAL CHECK
Check camshaft for scratches, seizure and wear.
SEM604E Compressor assemblyAttachment
SEM994C
SEM925C
CYLINDER HEADSR20DE
Inspection
EM-91