Nissan Titan. Instruction — part 327
EM-112
< UNIT DISASSEMBLY AND ASSEMBLY >
HOW TO SELECT PISTON AND BEARING
When Cylinder Block is Reused
1. Measure cylinder block bore diameter.
2. Determine the bore grade by comparing the measurement with the values under the “Cylinder bore diam-
eter” of the piston selection table.
Piston Selection Table
Unit: mm (in)
NOTE:
• The piston is available together with piston pin as an assembly.
• The piston pin (piston pin bore) grade is provided only for the parts installed at the plant. For service parts,
no grades can be selected (only 0 grade is available).
HOW TO SELECT CONNECTING ROD BEARING
When New Connecting Rod and Crankshaft are Used
1. Apply the big end inside diameter grade stamped on the con-
necting rod side face to the row in the “Connecting Rod Bearing
Selection Table”.
2. Apply the pin diameter grade stamped on the crankshaft front
side to the column in the “Connecting Rod Bearing Selection
Table”.
3. Read the symbol at the cross point of the selected row and col-
umn in the “Connecting Rod Bearing Selection Table".
4. Apply the symbol obtained to the "Connecting Rod Bearing
Grade Table" to select.
When Crankshaft and Connecting Rod are Reused
1. Measure dimensions of the big end inside diameter of the connecting rod and diameter of the crankshaft
pin individually.
2. Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.
3. The following steps are the same as in “When New Connecting Rod and Crankshaft are Used”.
Grade number (Mark)
1
2
3
Cylinder bore diameter
98.000-98.010 (3.8583-3.8587)
98.010-98.020 (3.8587-3.8590)
98.020-98.030 (3.8590-3.8594)
Piston diameter
97.980-97.990 (3.8575-3.8579)
97.990-98.000 (3.8579-3.8583)
98.000-98.010 (3.8583-3.8587)
KBIA2536E
PBIC0110E
HOW TO SELECT PISTON AND BEARING
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Connecting Rod Bearing Selection Table
Connecting Rod Bearing Grade Table.
Undersize Bearings Usage Guide
• When the specified oil clearance is not obtained with standard size connecting rod bearings, use undersize
(US) bearings.
• When using undersize bearing, measure the bearing inside diameter with the bearing installed, and grind the
crankshaft pin so that the oil clearance satisfies the standard.
Bearing undersize table
Unit: mm (in)
CAUTION:
In grinding the crankshaft pin to use undersize bearings, keep
the fillet R (All crankshaft pins).
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft are Used
1. Apply the main bearing housing grade on the bottom face of the
cylinder block to the row in "Main Bearings Selection Table".
KBIA2538E
Grade number
Thickness “T” mm (in)
Identification color (mark)
0
1.500 - 1.503 (0.0591 - 0.0592)
Black
1
1.503 - 1.506 (0.0592 - 0.0593)
Brown
2
1.506 - 1.509 (0.0593 - 0.0594)
Green
3
1.509 - 1.512 (0.0594 - 0.0595)
Yellow
Undersize
Thickness
0.25 (0.0098)
1.627 - 1.635 (0.0641 - 0.0644)
Fillet R
: 1.5 - 1.7 mm (0.059 - 0.067 in)
PBIC0111E
KBIA2495E
EM-114
< UNIT DISASSEMBLY AND ASSEMBLY >
HOW TO SELECT PISTON AND BEARING
2. Apply the journal diameter grade on the crankshaft front to the
column in "Main Bearings Selection Table".
3. Read the symbol at the cross point of the selected row and column in the "Main Bearings Selection Table".
CAUTION:
• Initial clearance for No. 1, 5 journal and No. 2, 3, 4 journal is different. Use two different selection
lists for each part.
• No. 1, 5 journal and No. 2, 3, 4 journal have the same signs but different measures. Do not con-
fuse them.
4. Apply the symbol to the "Main Bearings Grade Table" to select.
NOTE:
• Grade list applies to all journals.
• Service parts are available as a set of both upper and lower.
When Cylinder Block and Crankshaft are Reused
1. Measure the inside diameter of the cylinder block main bearings housing and the outside diameter of the
crankshaft journal.
2. Apply measurement in above step 1 to "Main Bearings Selection Table".
3. The following steps are same as in “When New Cylinder Block and Crankshaft are Used”.
PBIC0110E
HOW TO SELECT PISTON AND BEARING
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Main Bearings Selection Table (No. 1 and No. 5 journal)
WBIA0608E
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