Nissan Versa Sedan. Manual — part 392
CYLINDER BLOCK
EM-103
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Inspection
INFOID:0000000009266678
CRANKSHAFT END PLAY
• Measure the clearance between thrust bearings and crankshaft
arm when crankshaft is moved fully forward or backward with a
suitable tool (A).
• If the measured value exceeds the limit, replace thrust bearings,
and measure again. If it still exceeds the limit, replace crankshaft
also.
CONNECTING ROD SIDE CLEARANCE
• Measure the side clearance between connecting rod and crank-
shaft arm with a suitable tool (A).
• If the measured value exceeds the limit, replace connecting rod,
and measure again. If it still exceeds the limit, replace crankshaft
also.
PISTON TO PISTON PIN OIL CLEARANCE
Piston Pin Hole Diameter
Measure the inner diameter of piston pin hole with an suitable tool
(A).
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a suitable tool (A).
Piston to Piston Pin Oil Clearance
(Piston to piston pin oil clearance) = (Piston pin hole diameter) – (Piston pin outer diameter)
Standard and Limit
: Refer to
.
PBIC3762E
Standard and Limit : Refer to
.
PBIC3763E
Standard
: Refer to
.
PBIC3265J
Standard :
Refer
PBIC3266J
Standard :
EM-104
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CYLINDER BLOCK
• If oil clearance is out of the standard, replace piston and piston pin assembly.
• When replacing piston and piston pin assembly. Refer to
EM-95, "Disassembly and Assembly"
.
NOTE:
• Piston is available together with piston pin as assembly.
• Piston pin (piston pin hole) grade is provided only for the parts installed at the factory. For service parts, no
grades can be selected. Only grade “0” is available.
PISTON RING SIDE CLEARANCE
• Measure the side clearance of piston ring and piston ring groove
with a suitable tool (A).
• If the measured value exceeds the limit, replace piston ring, and
measure again. If it still exceeds the limit, replace piston also.
PISTON RING END GAP
• Check that cylinder bore inner diameter is within specification. Refer to “PISTON TO CYLINDER BORE
CLEARANCE”.
• Lubricate piston (1) and piston ring (2) with new engine oil and
then insert (A) piston ring until middle of cylinder (B) with piston,
and measure piston ring end gap with a feeler gauge (C).
• If the measured value exceeds the limit, replace piston ring, and
measure again. If it still exceeds the limit, replace cylinder block.
CONNECTING ROD BEND AND TORSION
• Check with a connecting rod aligner.
• If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER
Standard and Limit
: Refer to
PBIC3280J
Standard and Limit
: Refer to
PBIC3267J
(A)
: Bend
(B)
: Torsion
(C)
: Feeler gauge
Limit
: Refer to
PBIC3268J
CYLINDER BLOCK
EM-105
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• Install connecting rod cap (1) without connecting rod bearing
installed, and tightening connecting rod cap bolts to the specified
.
• Measure the inner diameter (B) of connecting rod big end with a
suitable tool.
• If out of the standard, replace connecting rod assembly.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Measure the inner diameter of connecting rod bushing with a suit-
able tool (A).
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer (A).
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)
• If the measured value is out of the standard range, replace connecting rod assembly and/or piston and pis-
ton pin assembly.
• If replacing piston and piston pin assembly. Refer to
• If replacing connecting rod assembly. Refer to
EM-126, "Connecting Rod Bearing"
.
CYLINDER BLOCK TOP SURFACE DISTORTION
• Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket particles to enter engine oil or engine coolant passages.
(2)
: Connecting rod
(A)
: Example
(B)
: Measuring direction of inner diameter
Standard :
PBIC3269J
Inner diameter
(Standard)
: Refer to
JPBIA0223ZZ
Outer diameter
(Standard)
: Refer to
JPBIA0218ZZ
Oil clearance
(Standard and Limit)
: Refer to
.
EM-106
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CYLINDER BLOCK
• Measure the distortion on the cylinder block upper face at different
points in six directions with a suitable tool (A) and (B).
• If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
• Install main bearing cap without main bearings installed, and tighten main bearing cap bolts to the specified
EM-95, "Disassembly and Assembly"
• Measure the inner diameter of main bearing housing with a suitable tool.
• Measure the position shown [5 mm (0.20 in)] backward from main
bearing housing front side in the 2 directions as shown. The
smaller one is the measured value.
• If out of the standard, replace cylinder block and main bearing
caps assembly.
NOTE:
Main bearing caps cannot be replaced individually, because they are machined together with cylinder block.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
• Using a suitable tool, measure the cylinder bore for wear, out-of-
round and taper at six different points on each cylinder. [(A) and (B)
directions at (C), (D), and (E)] [(A) is in longitudinal direction of
engine]
NOTE:
When determining cylinder bore grade, measure the cylinder bore
(B) direction at (D) position.
• If the measured value exceeds the limit, or if there are scratches and/or seizure on the cylinder inner wall,
replace cylinder block.
NOTE:
Oversize piston is not available.
Limit :
Refer
.
JPBIA0224ZZ
(1)
: Cylinder block
(2)
: Main bearing cap
: Engine front
Standard :
PBIC4005E
(f)
: 10 mm (0.39 in)
(g)
: 60 mm (2.36 in)
(h)
: 124 mm (4.88 in)
Standard:
Cylinder bore inner diameter
: Refer to
.
Limit:
Out-of-round [Difference between (A) and (B)]
Taper [Difference between (C) and (E)]
: Refer to
.
JPBIA2059ZZ
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