Nissan Titan A60. Instruction — part 481
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
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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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HOW TO SELECT PISTON AND BEARING
Main Bearings Selection Table (No. 2, 3 and 4 journal)
Main Bearings Grade Table (All Journals)
Unit: mm (in)
WBIA0609E
Grade number
UPR/LWR
Thickness
Identification color
Remarks
0
—
2.483 - 2.486 (0.0978 - 0.0979)
Black
Grade is the same for upper
and lower bearings.
1
—
2.486 - 2.489 (0.0979 - 0.0980)
Brown
2
—
2.489 - 2.492 (0.0980 - 0.0981)
Green
3
—
2.492 - 2.495 (0.0981 - 0.0982)
Yellow
4
—
2.495 - 2.498 (0.0982 - 0.0983)
Blue
5
—
2.498 - 2.501 (0.0983 - 0.0985)
Pink
6
—
2.501 - 2.504 (0.0985 - 0.0986)
Purple
7
—
2.504 - 2.507 (0.0986 - 0.0987)
White
8
—
2.507 - 2.510 (0.0987 - 0.0988)
Red
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