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CYLINDER HEADEM-79
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• Set a try square (A) along the side of valve spring and rotate
spring. Measure the maximum clearance between the top of spring
and try square.
• If it exceeds the limit, replace valve spring.
Valve Spring Dimensions and Valve Spring Pressure Load
• Check the valve spring pressure at specified spring height.
• If the installation load or load with valve open is out of the stan- dard, replace valve spring.
ASSEMBLY
1. Install the valve guide, if necessary. CAUTION:
Replace with oversize [0.2 mm (0.008 in)] valve guide.
a. Using suitable tool (A), ream cylinder head valve guide hole.
b. Heat cylinder head to 110 to 130 °C (230 to 266 °F) by soaking in
heated oil (A).
B: Contact
Limit : Refer to EM-114, "Cylinder Head".
PBIC3219J
Standard : Refer to EM-114, "Cylinder Head".
Standard : Refer to EM-114, "
Cylinder Head".
SEM113
For service parts: Oversized [0.2 mm (0.008 in)]
Refer to EM-114, "
Cylinder Head".
PBIC3215J
PBIC3214J
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![NISSAN LATIO 2011 Service Repair Manual CYLINDER HEADEM-81
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d. Using suitable tool or valve seat grinder, finish seat to the speci-
fied dimensions. Refer to EM-114, "
Cylinder NISSAN LATIO 2011 Service Repair Manual CYLINDER HEADEM-81
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d. Using suitable tool or valve seat grinder, finish seat to the speci-
fied dimensions. Refer to EM-114, "
Cylinder](/manual-img/5/57357/w960_57357-2470.png)
CYLINDER HEADEM-81
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d. Using suitable tool or valve seat grinder, finish seat to the speci-
fied dimensions. Refer to EM-114, "
Cylinder Head".
CAUTION:
When using the valve seat cutter, firmly grip cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cu t in a single drive. Improper
pressure on with cutter or cu tting many different times may
result in stage valve seat.
e. Using compound, grind to adjust valve fitting.
f. Check again for normal contact. Refer to EM-76, "
Disassembly and Assembly".
3. Install valve oil seal. • Install with Tool (A) to match dimension as shown.
4. Install valve spring seat.
5. Install valve. • Install larger diameter to intake side.
6. Install valve spring. NOTE:
It can be installed in either direction.
7. Install valve spring retainer.
8. Install valve collet. • Compress valve spring with Tool (A). Install valve collet with amagnet hand (B).
CAUTION:
Be careful not to damage valve lifter holes.
• Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
9. Install valve lifter.
10. Install spark plug with a suitable tool.
SEM934C
Height “H” : 13.2 - 13.8 mm (0.520 - 0.543 in)
Tool number : KV10115600 (J-38958)
PBIC3211J
Tool number : KV10116200 (J-26336-B) : KV10115900 (J-26336-20)
: KV10109220 ( — )
PBIC3727E
Revision: May 2010 2011 Versa
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![NISSAN LATIO 2011 Service Repair Manual CYLINDER BLOCKEM-103
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• Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
• Cut a plas NISSAN LATIO 2011 Service Repair Manual CYLINDER BLOCKEM-103
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• Cut a plas](/manual-img/5/57357/w960_57357-2492.png)
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• Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width,
and place it in crankshaft axial direction, avoiding oil
holes.
• Install connecting rod bearings to connecting rod and c ap, and tighten connecting rod bolts to the specified
torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove connecting rod cap and bearing, and using the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-ified torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
• If the clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and crankshaft main
journal diameter to obtain the specified bearing oil clearance.
Refer to EM-108, "
MainBearing".
Method of Using Plastigage
• Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-
ified torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove main bearing cap and bearings, and using the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT
PBIC1149E
Standard : Refer to EM-120, "Main Bearing".
PBIC1644E
PBIC1149E
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CYLINDER BLOCK
• When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bearing
must NISSAN LATIO 2011 Service Repair Manual EM-104
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CYLINDER BLOCK
• When main bearing cap is removed after being tightened to the
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must](/manual-img/5/57357/w960_57357-2493.png)
EM-104
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CYLINDER BLOCK
• When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bearing
must protrude. Refer to EM-90, "
Disassembly and Assembly".
• If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT
• When connecting rod bearing cap is removed after being tightened to the specified torque with connecting rod bearings installed, the
tip end of bearing must protrude. Refer to EM-90, "
Disassembly
and Assembly".
• If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER
• Measure the outer diameters (“d1”, “d2”) at two positions as shown.
• If reduction appears in a position other than “d
2 ”, regard it as “d2”.
• If it exceeds the limit (a large difference in dimensions), replace main bearing cap bolt with a new one.
CONNECTING ROD CAP BOLT OUTER DIAMETER
• Measure the outer diameter “d” at position as shown.
• If reduction appears in a position other than “d”, regard it as “d”.
• When “d” falls below the limit (when it becomes thinner), replaceconnecting rod cap bolt with a new one.
FLYWHEEL DEFLECTION
Standard: There must be crush height.
SEM502G
Standard: There must be crush height.
PBIC1646E
Limit (“d1 ” – “d2 ”): 0.2 mm (0.008 in)
PBIC3768E
Limit: 7.75 mm (0.3051 in)
PBIC3769E
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![NISSAN LATIO 2011 Service Repair Manual EM-112
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: When engine is cold.
Spark PlugINFOID:0000000005930976
SPARK PLUG
Unit: mm (in)
*: Always check with t NISSAN LATIO 2011 Service Repair Manual EM-112
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: When engine is cold.
Spark PlugINFOID:0000000005930976
SPARK PLUG
Unit: mm (in)
*: Always check with t](/manual-img/5/57357/w960_57357-2501.png)
EM-112
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: When engine is cold.
Spark PlugINFOID:0000000005930976
SPARK PLUG
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information
Exhaust ManifoldINFOID:0000000005930977
EXHAUST MANIFOLD
Unit: mm (in)
CamshaftINFOID:0000000005930978
CAMSHAFT
Unit: mm (in)
Location Tension adjustment * Unit: N (kg, lb) Frequency adjustment * Unit: Hz
Used belt New beltUsed belt
New belt
Limit After adjusted Limit After adjusted
Drive belt With A/C models 500 (51.0, 112)
876 - 964
(89.4 - 98.3,
197 - 217)1064 - 1152
(108.5 - 117.5,
239 - 259)
173 229 - 239 253.5 - 261.5
Without A/C models 500 (51.0, 112) 876 - 964
(89.4 - 98.3, 197 - 217) 1064 - 1152
(108.5 - 117.5, 239 - 259) 194 257.5 - 267.5 283 - 293
Make
Denso
Standard type* FXE20HE-11
Gap (Nominal) 1.1 (0.043)
Items Limit
Surface distortion Exhaust manifold 0.3 (0.012)
Items StandardLimit
Camshaft runout [TIR*] 0.02 (0.0008)0.1 (0.004)
Camshaft cam height “A” Intake
41.705 - 41.895 (1.6419 - 1.6494) —
Exhaust 40.175 - 40.365 (1.5817 - 1.5892) —
Camshaft journal diameter No. 1
27.935 - 27.955 (1.0998 - 1.1006) —
No. 2, 3, 4, 5 24.950 - 24.970 (0.9823 - 0.9831) —
Camshaft bracket inner diameter No. 1
28.000 - 28.021 (1.1024 - 1.1032) —
No. 2, 3, 4, 5 25.000 - 25.021 (0.9843 - 0.9851) —
SEM671
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EM-114
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: Always check with the Parts Department for the latest parts information
Cylinder HeadINFOID:0000000005930979
CYLINDER HEAD
Unit: mm (in)
VALVE DIMENSIONS
Unit: mm (in)
3.30 (0.1299)
330
3.32 (0.1307) 332
3.34 (0.1315) 334
3.36 (0.1323) 336
3.38 (0.1331) 338
3.40 (0.1339) 340
3.42 (0.1346) 342
3.44 (0.1354) 344
3.46 (0.1362) 346
3.48 (0.1370) 348
3.50 (0.1378) 350
Thickness mm (in)
Identification mark*
ItemsStandard Limit
Head surface distortion —0.1 (0.004)
Normal cylinder head height “H” 125.0 (4.92)—
PBIC0924E
Valve head diameter “D”Intake 31.0 - 31.3 (1.220 - 1.232)
Exhaust 25.3 - 25.6 (0.996 - 1.008)
Va l v e l e n g t h “ a ” Intake
101.65 (4.002)
Exhaust 102.46 (4.034)
PBIC3878E
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![NISSAN LATIO 2011 Service Repair Manual EM-116
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*1 : Diameter made by intersection point of conic angles α
1 and α2
*
2 : Diameter made by intersecti NISSAN LATIO 2011 Service Repair Manual EM-116
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*1 : Diameter made by intersection point of conic angles α
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*
2 : Diameter made by intersecti](/manual-img/5/57357/w960_57357-2505.png)
EM-116
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*1 : Diameter made by intersection point of conic angles α
1 and α2
*
2 : Diameter made by intersection point of conic angles α 2 and α3
*
3 : Machining data
VALVE SPRING
Cylinder BlockINFOID:0000000005930980
CYLINDER BLOCK
Valve seat outer diameter “d” Intake 31.497 - 31.513 (1.2400 - 1.2407) 31.997 - 32.013 (1.2597 - 1.2604)
Exhaust 25.997 - 26.013 (1.0235 - 1.0241) 26.497 - 26.513 (1.0432 - 1.0438)
Valve seat interference fit Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
Diameter “d1”*
1 Intake 29.0 (1.142)
Exhaust
23.0 (0.906)
Diameter “d2”*
2Intake 30.6 - 30.8 (1.205 - 1.213)
Exhaust 24.9 - 25.1 (0.980 - 0.988)
Angle “ α1” Intake
60°
Exhaust 45°
Angle “ α2” Intake
89°45 ′ - 90 °15 ′
Exhaust
Angle “ α3” Intake
120°
Exhaust
Contacting width “W”*
3Intake 1.05 - 1.35 (0.0413 - 0.0531)
Exhaust 1.25 - 1.55 (0.0492 - 0.0610)
Height “h” Intake
6.0 (0.236) 5.45 (0.215)
Exhaust 5.43 (0.214)
Depth “H” 6.0 (0.236)
ItemsStandard
Free height 42.26 mm (1.6638 in)
Installation height 32.40 mm (1.2756 in)
Installation load 136 - 154 N (13.9 - 15.7 kg, 31 - 35 lb)
Height during valve open 23.96 mm (0.9433 in)
Load with valve open 262 - 296 N (26.7 - 30.2 kg, 59 - 67 lb)
Items Limit
Valve spring squareness 1.8 mm (0.071 in)
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![NISSAN LATIO 2011 Service Repair Manual EM-172
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
13. Remove valve lifters, if necessary.
NOTE:
Identify installed positions, and st ore them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft R NISSAN LATIO 2011 Service Repair Manual EM-172
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
13. Remove valve lifters, if necessary.
NOTE:
Identify installed positions, and st ore them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft R](/manual-img/5/57357/w960_57357-2561.png)
EM-172
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
13. Remove valve lifters, if necessary.
NOTE:
Identify installed positions, and st ore them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour-
nal of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft
sprocket) because it has a differe nt diameter from the other
four locations.
2. Set dial indicator (A) vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer (A).
2. If it exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL OUTER DIAMETER
Measure the outer diameter of ca mshaft journal with a micrometer
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with specified torque. Standard : Less than 0.02 mm (0.0008 in).
Limit : 0.05 mm (0.0020 in)
PBIC3177J
Standard:
Intake : 44.605 - 44.795 mm (1.7560 - 1.7635 in)
Exhaust : 43.175 - 43.365 mm (1.6997 - 1.7072 in)
Limit: Intake : 44.405 mm (1.7482 in)
Exhaust : 42.975 mm (1.6919 in)
PBIC3178J
Standard: No. 1 : 27.935 - 27.955 mm (1.0998 - 1.1006 in)
No. 2, 3, 4, 5 : 24.950 - 24.970 mm (0.9823 - 0.9831 in)
PBIC3179J
Revision: May 2010 2011 Versa