2009 NISSAN LATIO Service Repair Manual

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Page 3169 of 4331

NISSAN LATIO 2009 Service Repair Manual EM-222< SERVICE INFORMATION >
[MR18DE]
CYLINDER BLOCK
• Measure the outer diameter of crankshaft main journals with a
micrometer (A).
• If out of the standard, measure the main b

EM-222< SERVICE INFORMATION >
[MR18DE]
CYLINDER BLOCK
• Measure the outer diameter of crankshaft main journals with a
micrometer (A).
• If out of the standard, measure the main bearing oil clearance. Then use undersize bearing. Follow the "MAIN BEARING OIL
CLEARANCE" procedure.
CRANKSHAFT PIN JOURNAL DIAMETER
• Measure the outer diameter of crankshaft pin journal with a micrometer.
• If out of the standard, measure the connecting rod bear ing oil clearance. Then use undersize bearing. Follow
the "CONNECTING ROD BEARIN G OIL CLEARANCE" procedure.
OUT-OF-ROUND AND TAPER OF CRANKSHAFT
• Measure the dimensions at four different points as shown on each main journal and pin journal with a micrometer.
• Out-of-round is indicated by the difference in dimensions between (X) and (Y) at (A) and (B).
• Taper is indicated by the difference in dimension between (A) and
(B) at (X) and (Y).
• If the measured value exceeds the lim it, correct or replace crankshaft.
• If corrected, measure the bearing oil clearance of t he corrected main journal and/or pin journal. Then select
main bearing and/or connecting rod bearing. Follow the "MAIN BEARING OIL CLEARANCE" and/or "CON-
NECTING ROD BEARING OIL CLEARANCE" procedures.
CRANKSHAFT RUNOUT
• Place a V-block on a precise flat table to support the journals on the both end of the crankshaft.
• Place a dial indicator (A) straight up on the No. 3 journal.
• While rotating crankshaft, read t he movement of the pointer on the
dial indicator. (Total indicator reading)
• If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation Standard: 51.959 - 51.979 mm (2.0456 - 2.0464 in) dia. PBIC3457J
Standard: 43.953 - 43.971 mm (1.7304-1.7311 in) dia.
Limit: Out-of-round [Difference between (X) and (Y)] : 0.0035 mm (0.0001 in)
Taper [Difference between (A) and (B)] : 0.0035 mm (0.0001 in) PBIC3459J
Standard : 0.05 mm (0.0020 in)
Limit : 0.10 mm (0.0040 in) PBIC3458J

Page 3170 of 4331

NISSAN LATIO 2009 Service Repair Manual EM
NP
O
• Install connecting rod bearings (2) to connecting rod (3) and con-
necting rod bearing cap (1), and tighten connecting rod bolts to the
specified torque. Refer to EM-200, "

EM
NP
O
• Install connecting rod bearings (2) to connecting rod (3) and con-
necting rod bearing cap (1), and tighten connecting rod bolts to the
specified torque. Refer to EM-200, " Disassembly and Assembly "
for tightening procedure.
• Measure the inner diameter of connecting rod bearing with an inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter)
– (Crankshaft pin journal diameter)
• If clearance exceeds the limit, select proper c onnecting rod bearing according to connecting rod big end
diameter and crankshaft pin journal diameter to obtain specified bearing oil clearance. Refer to EM-209," How to Select Piston and Bearing " .
Method of Using Plastigage • 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-200, " Disassembly and Assembly " for the tightening procedure.
CAUTION:
Never rotate crankshaft.
• Remove connecting rod cap and bearing, and using the scale (A) 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 (3) to cylinder block (1) and main bearing cap (2), and tighten main bearing cap bolts to the specified torque.
Refer to EM-200, " Disassembly and Assembly " for the tightening
procedure.
• Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter) A : Example
B : Inner diameter measuring direction
Standard : 0.037 - 0.047 mm (0.0015 - 0.0019 in)
Limit : 0.07 mm (0.0028 in)

Page 3171 of 4331

NISSAN LATIO 2009 Service Repair Manual How to Select
Piston and Bearing " .
Method of Using Plastigage
• Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
• Cut a plastigage slightly sh

Page 3172 of 4331

NISSAN LATIO 2009 Service Repair Manual EM
NP
O
• Measure the outer diameters [(d
1), (d 2)] at two positions as shown.
• If reduction appears in places other than (B) range, regard it as (d 2).
• If it exceeds the limi

Page 3173 of 4331

Page 3174 of 4331

NISSAN LATIO 2009 Service Repair Manual EM
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit INFOID:0000000004307162
GENERAL SPECIFICATIONS
DRIVE BELT
WATER CONTROL VALVE
EXHAUST MANIFOLD Unit: mm (in)
THERMOSTAT
SPARK PLUG Unit

Page 3175 of 4331

NISSAN LATIO 2009 Service Repair Manual EM-228< SERVICE INFORMATION >
[MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
VALVE
Valve Timing Unit: degree
( ): Valve timing control “ON”
Valve Dimensions Unit: mm (in)
Groove of No. 1 journal

Page 3176 of 4331

NISSAN LATIO 2009 Service Repair Manual SERVICE DATA AND SPECIFICATIONS (SDS)
EM-229
< SERVICE INFORMATION >
[MR18DE] C
D E
F
G H
I
J
K L
M A EM
NP
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Valve Clearance
Unit: mm (in)
*: Approximately 80 °C (176 °F)
Available Valve Lifter Va

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