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![NISSAN TIIDA 2007 Service Repair Manual EM-114
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CYLINDER BLOCK
Never rotate crankshaft.
Remove connecting rod cap and bearing, and using the scale on
the plastigage bag, measure the plastigage width.
N NISSAN TIIDA 2007 Service Repair Manual EM-114
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CYLINDER BLOCK
Never rotate crankshaft.
Remove connecting rod cap and bearing, and using the scale on
the plastigage bag, measure the plastigage width.
N](/manual-img/5/57395/w960_57395-2760.png)
EM-114
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CYLINDER BLOCK
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-101, "
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-119, "
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-101, "
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-131, "Main Bearing".
PBIC1644E
PBIC1149E
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When main bearing cap is removed after being tightened to the
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CYLINDER BLOCK
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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-101, "
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-101, "
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
in the figure.
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 in the figure.
If reduction appears in a position other than “d”, regard it as “d”.
When “d” falls below the limit (when it becomes thinner), replace
connecting 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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EM-116
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CYLINDER BLOCK
Measure the deflection of flywheel contact surface to clutch with a
dial indicator.
If measured value is out of the standard, replace flywheel.Standard : 0.25 mm (0.0098 in) or less.
PBIC2646E
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HOW TO SELECT PISTON AND BEARING
DescriptionINFOID:0000000001381436
The identification gr NISSAN TIIDA 2007 Service Repair Manual HOW TO SELECT PISTON AND BEARING
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HOW TO SELECT PISTON AND BEARING
DescriptionINFOID:0000000001381436
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HOW TO SELECT PISTON AND BEARING
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HOW TO SELECT PISTON AND BEARING
DescriptionINFOID:0000000001381436
The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.
For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, follow the procedures.
Connecting Rod BearingINFOID:0000000001381437
WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED
1. Apply connecting rod big end diameter grade stamped (C) on
connecting rod side face to the row in the “Connecting Rod
Bearing Selection Table”.
2. Apply crankshaft pin journal diameter grade stamped (B) on
crankshaft front side to the column in the “Connecting Rod Bear-
ing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED
1. Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to EM-108, "
Inspection".
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaftMain bearingMain bearing grade (bearing
thickness)Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
A: Oil hole
B : Cylinder number
D: Front mark
PBIC3756E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E
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EM-118
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HOW TO SELECT PISTON AND BEARING
2. Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
Connecting Rod Bearing Selection Table
Connecting Rod Bearing Grade Table
Undersize Bearings Usage Guide
When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod
bearings, use undersize (US) bearings.
When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing
installed, and grind the crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
CAUTION:
PBIC3758E
Connecting Rod Bearing Grade Table : Refer to EM-130, "Connecting Rod Bearing".
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HOW TO SELECT PISTON AND BEARING
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In grinding crankshaft pin to use undersize bearings, keep the
fillet R (A) [0.8 - 1.2 mm (0.031 - 0.047 in)].
Main BearingINFOID:0000000001381438
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft Are Used
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on left side of cylinder block.
If there is a corrected stamp mark (B) on cylinder block, use it
as a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
When Cylinder Block and Crankshaft Are Reused
1. Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to EM-108, "
Inspection".
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing. Bearing undersize table:
Refer to EM-130, "
Connecting Rod Bearing".
PBIC3263J
A : Basic stamp mark
: Engine front
PBIC3760E
A : Main journal diameter grade (No. 1 to 5 from left)
B : Crankshaft pin journal diameter grade (No. 1 to 4 from left)
PBIC3757E
Page 2767 of 5883
EM-120
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Main Bearing Selection Table
Main Bearing Grade Table
Use Undersize Bearing Usage Guide
When the specified main bearing oil clearance is not obtained with standard size main bearings, use under-
size (US) bearing.
When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and
grind main journal so that the main bearing oil clearance satisfies the standard.
CAUTION:
PBIC3759E
Main Bearing Grade Table : Refer to EM-131, "Main Bearing".
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HOW TO SELECT PISTON AND BEARING
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In grinding crankshaft main journal to use undersize bearings,
keep fillet R (A) [0.8 - 1.2 mm (0.031 - 0.047 in)].
Bearing undersize table:
Refer to EM-131, "
Main Bearing".
PBIC3263J