Nissan Terrano r20e. Manual — part 294
Selection Procedure for Selective Part
Combination
Location
Selective part combination
Item
Method
Cylinder block - piston
Piston and piston assembly
(Part No. is given to a piston
and piston pin as a set.)
Piston grade (Piston outer
diameter)
Refer to “Selective combination
chart”.
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Identification grade stamped on each part represents initial
dimension of new part. This grade will not be applied to a
reused part.
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Measure correct dimensions of a reused or modified part, then
refer to “Selective combination chart” in this manual to identify
the grade.
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Refer to the applicable pages for measurement method for
each part, standards for reuse, and selecting method for selec-
tive part combination.
Disassembly
1. Remove engine assembly from vehicle.
Refer to EM-63, “ENGINE REMOVAL”.
2. Remove pilot bushing from flywheel using pilot bearing puller
(SST), if necessary (M/T model).
3. Install engine to engine stand (SST).
1) Remove flywheel (M/T model) or drive plate (A/T model).
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Using ring gear stopper (SST), secure ring gear, and remove
mounting bolts.
CAUTION:
Do not disassemble flywheel.
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Flywheel has a two-piece structure. When being pressed
forward/backward, or twisted in rotating direction, transmission-
side mass will be moved with audible sound. This is not a
problem.
2) Remove pilot converter (A/T model) and rear plate.
SEM364G
YEM043
CYLINDER BLOCK
ZD
EM-67
3) Install engine sub-attachment (SST) to the rear side of cylinder
block.
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Align knock pin on cylinder block with pin hole on attachment
to install engine sub-attachment.
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Mounting bolts are provided with engine sub-attachment.
4) Install engine attachment (SST).
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Use commercially available M12 mounting bolts and nuts (4
sets) with strength grade of 9T (minimum).
5) Hoist engine and install it to the engine stand (SST).
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Engine attachment and engine sub-attachment can be installed
to engine stand before engine installation.
4. Drain engine oil and coolant from engine.
5. Remove the following parts and related parts. (Only major parts
are listed.)
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Accessory belt
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Catalytic converter
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Turbocharger
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Exhaust manifold
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Injection tube
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Intake manifold
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Rocker cover
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Oil pan (upper/lower)
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Water pump
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Thermostat and water pipes
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Vacuum pump
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Injection tube
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Timing chain
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Electronic high pressure fuel injection pump
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Timing gear
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High pressure injection nozzle assembly
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Camshaft
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Cylinder head
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Oil cooler
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Accessory and accessory brackets
6. Remove rear oil seal and retainer assembly.
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Insert flat-bladed screwdriver between lower cylinder block and
rear oil seal retainer to remove the assembly.
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No part No. is given to oil seal.
FEM083
FEM084
CYLINDER BLOCK
ZD
Disassembly (Cont’d)
EM-68
7. Remove piston and connecting rod assembly.
I
Before removing piston and connecting rod assembly, check
connecting rod side clearance.
Refer to EM-71, “CONNECTING ROD SIDE CLEARANCE”.
1) Move crankshaft pin to be removed to approximately BDC.
2) Remove connecting rod caps.
3) Using the grip of a hammer, press the piston and connecting
rod assembly out to cylinder head side.
CAUTION:
When removing the piston and connecting rod assembly, pre-
vent the big end of the connecting rod from interfering with the
oil jet.
8. Remove connecting rod bearings from connecting rods and
caps.
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Keep them by cylinder to avoid confusion.
9. Remove piston rings from pistons using piston ring expander
(multi-purpose tool).
CAUTION:
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When removing, prevent pistons from being damaged.
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Do not expand piston rings excessively. This may damage
the piston rings.
10. Remove pistons from connecting rods.
1) Using long nose pliers, remove snap rings.
2) Using industrial dryer, heat pistons up to 60 to 70°C (140 to
158°F).
FEM085
FEM086
FEM087
FEM088
FEM089
CYLINDER BLOCK
ZD
Disassembly (Cont’d)
EM-69
3) Using rod with outer diameter of 30 mm (1.18 in), press piston
pins out.
11. Remove lower cylinder block.
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The lower cylinder block is the lower part of the cylinder block,
which works as the main bearing cap (beam) and oil pan
mounting face.
1) Remove mounting bolts for engine sub-attachment shown by
arrows in the figure.
2) Loosen and remove mounting bolts in the reverse order shown
in the figure.
3) Insert flat-bladed screwdriver into 5 locations shown by arrows
in the figure. Lift lower cylinder block evenly, and remove liquid
gasket.
CAUTION:
Prevent mating faces from being damaged.
4) When removing lower cylinder block, use slot to prevent dowel
pin from interfering with engine sub-attachment.
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No part No. is given to lower cylinder block, because it is
machined with the cylinder block.
12. Remove crankshaft.
13. Remove main bearings and thrust bearings from cylinder block
and lower cylinder block.
CAUTION:
Check mounting positions. Keep them to avoid confusion.
FEM090
FEM091
FEM092
FEM093
CYLINDER BLOCK
ZD
Disassembly (Cont’d)
EM-70
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