Nissan Frontier D22. Manual — part 706
CYLINDER BLOCK
EM-131
[VG33E and VG33ER]
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CYLINDER BLOCK
PFP:11010
Components
EBS00GTW
WEM142
EM-132
[VG33E and VG33ER]
CYLINDER BLOCK
Canada Models — Block Heater
Removal and Installation
EBS00GTX
CAUTION:
●
When installing sliding parts such as bearings and pistons, be sure to apply engine oil on the slid-
ing surfaces.
●
Place removed parts such as bearings and bearing caps in their proper order and direction.
●
When installing connecting rod bolts and main bearing cap bolts, apply new engine oil to threads
and seating surfaces.
●
Do not allow any magnetic materials to contact the ring gear teeth on drive plate and rear plate.
Disassembly
EBS00GTY
PISTON AND CRANKSHAFT
1.
Place the engine on a work stand.
2.
Drain the engine of coolant. Refer to
3.
Drain the engine oil. Refer to
.
4.
Remove the timing belt. Refer to
.
5.
Remove the engine oil pan and oil pump. Refer to
6.
Remove the water pump. Refer to
.
7.
Remove the cylinder head. Refer to
8.
Remove the pistons with connecting rod assemblies.
●
When disassembling the pistons and connecting rods,
remove the snap ring first, then heat the piston to 60
° - 70°C
(140
° - 158°F) or use a piston pin press stand at room tem-
perature.
CAUTION:
●
When the piston rings are not replaced, make sure that
piston rings are installed in their original position and
direction.
●
When replacing the piston rings install them with the
punchmark facing up. If there is no punchmark, install
with either side up.
LEM112
SEM326FA
SEM877B
CYLINDER BLOCK
EM-133
[VG33E and VG33ER]
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9.
Remove the bearing caps and crankshaft.
●
Before removing the bearing caps, measure the crankshaft
end play.
CAUTION:
The bearing cap bolts must be loosened in two or three
steps in the numerical order as shown.
Inspection
EBS00GTZ
PISTON AND PISTON PIN CLEARANCE
1.
Measure the inner diameter of piston pin hole “dp” as shown.
2.
Measure the outer diameter of piston pin “Dp” as shown.
3.
Calculate piston pin clearance. If the clearance is out of specification, replace the piston and pin.
PISTON RING SIDE CLEARANCE
Measure the piston ring to piston side clearance as shown.
If out of specification, replace piston and/or piston ring assembly.
SEM551E
Standard diameter “dp”
: 20.969 - 20.981 mm
(0.8255 - 0.8260 in)
SEM684E
Standard diameter “Dp”
: 20.971 - 20.983 mm
(0.8256 - 0.8261 in)
AEM024
Piston pin clearance ("dp" – "Dp")
: 0 – (– 0.004) mm [0 – (– 0.0002) in]
Side clearance:
Top ring
: 0.040 - 0.080 mm (0.0016 - 0.0031 in)
2nd ring
: 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Oil ring
: 0.015 - 0.185 mm (0.0006 - 0.0073 in)
Side clearance maximum limit:
Top ring
: 0.11 mm (0.0043 in)
2nd ring
: 0.1 mm (0.004 in)
Oil ring
: —
SEM024AA
EM-134
[VG33E and VG33ER]
CYLINDER BLOCK
PISTON RING END GAP
With the piston ring on top of the piston, insert the piston and ring
into the cylinder bore as shown. Measure the piston ring gap.
If out of specification, replace the piston ring. If the gap still exceeds the limit even with a new ring, rebore the
cylinder and use an oversized piston and piston rings. Refer to
EM-150, "Piston, Piston Ring and Piston Pin"
CAUTION:
When replacing the piston, check the cylinder block surface for scratches or seizure. If scratches or
seizure are found, hone or replace the cylinder block.
CONNECTING ROD BEND AND TORSION
Using a suitable tool and a feeler gauge, measure the connecting
rod bend and torsion as shown.
If it exceeds the limit, replace connecting rod assembly.
CYLINDER BLOCK DISTORTION AND WEAR
1.
Clean the upper face of the cylinder block and measure the dis-
tortion using a straight edge and feeler gauge as shown.
2.
If the distortion exceeds the specified limit, resurface the cylinder block sealing surface.
The resurfacing limit is determined by the amount of cylinder head resurfacing required.
End gap
Top ring
: 0.21 - 0.31 mm (0.0083 - 0.0122 in)
2nd ring
: 0.50 - 0.60 mm (0.0197 - 0.0236 in)
Oil ring
: 0.20 - 0.60 mm (0.0079 - 0.0236 in)
Ring gap maximum limit
Top ring
: 0.43 mm (0.0169 in)
2nd ring
: 0.69 mm (0.0272 in)
Oil ring
: 0.84 mm (0.0331 in)
SEM822B
Bend limit
: 0.15 mm (0.0059 in) per 100 mm
(3.94 in) length
Torsion limit
: 0.30 mm (0.0118 in) per 100 mm
(3.94 in) length
SEM038F
SEM003F
Cylinder block distortion
Standard
: less than 0.03 mm (0.0012 in)
Limit
: 0.10 mm (0.004 in)
SEM394E
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