Nissan Primera P11. Instruction — part 429
Using feeler gauge
1.
Set piston and feeler gauge with spring scale.
2.
Measure extracting force while pulling up scale slowly.
Feeler gauge used:
0.05 - 0.07 mm (0.0020 - 0.0028 in)
Extracting force:
7.8 - 14.7 N (0.8 - 1.5 kg, 1.8 - 3.3 lb)
Assembly
PISTON
I
Numbers stamped on connecting rod and cap correspond
to each cylinder. Care should be taken to avoid a wrong
combination including bearing and connecting rod direc-
tion.
I
Install new snap ring on one side of piston pin hole.
I
When assembling piston and connecting rod with piston
pin, heat piston to between 60 and 80°C (140 and 176°F)
and install piston pin with a suitable tool.
I
Install new snap ring.
I
After assembling, ascertain that piston swings smoothly.
I
Install piston rings with a suitable tool.
Selective top ring; When installing new top ring or replacing
cylinder block, select top ring to adjust ring gap.
Cylinder bore grade
1, 2, 3
4, 5
Top ring grade No.
No mark
S
CRANKSHAFT
1.
Set main bearings in the proper position on cylinder block and
main bearing caps.
I
If either crankshaft, cylinder block or main bearing is
reused again, it is necessary to measure main bearing
clearance.
I
Upper bearings (cylinder block side) have oil groove.
I
Apply new engine oil to bearing surfaces.
SEM550
SEM703D
EM156
SEM251D
Punch mark side up
Teflon tube
set position
SEM617
Front
CYLINDER BLOCK
CD20T
Inspection (Cont’d)
EM-175
2.
Apply engine oil to main bearing surfaces on crankshaft jour-
nal side.
3.
Install crankshaft and main bearing caps.
4.
Tighten main bearing cap bolts.
: 69 - 78 N·m (7.0 - 8.0 kg-m, 51 - 58 ft-lb)
I
Arrange the parts so that the indicated numbers on bear-
ing caps are in a row from the front of engine.
I
Tighten bearing cap bolts gradually in two or three stages
and outwardly from center bearing in sequence.
I
After securing bearing cap bolts, ascertain that crankshaft
turns smoothly.
I
Apply new engine oil to threads of bearing cap bolts.
5.
Measure crankshaft free end play at center bearing.
Crankshaft free end play:
Standard
0.05 - 0.18 mm (0.0020 - 0.0071 in)
Limit
0.30 mm (0.0118 in)
PISTON WITH CONNECTING ROD
1.
Install connecting rod bearings in the connecting rods and
connecting rod caps.
I
Confirm that correct size of bearings is used.
Refer to “Inspection” (EM-170).
I
Install the bearings so that the oil hole in the connecting rod
aligns with the oil hole of the bearing.
I
Apply engine oil to connecting rod bearing surfaces on
the crankshaft journal side.
I
Set piston rings as shown.
NEM377
Bearing No.
Engine
front
SEM362F
Engine front
Tighten in numerical order.
SEM363F
Feeler gauge
SEM159B
Align oil hole.
SEM909
CYLINDER BLOCK
CD20T
Assembly (Cont’d)
EM-176
2.
Install pistons with connecting rods.
I
Install them into corresponding cylinder using Tool.
I
Be careful not to scratch cylinder wall with connecting
rod.
I
Apply engine oil to cylinder wall, piston and bearing.
I
Arrange so that the front mark on piston head faces to the
front of engine.
3.
Install connecting rod bearing caps.
I
Apply engine oil to the thread of connecting rod bearing
nut.
(1) Tighten connecting rod bearing nut to 15±1 N·m (1.5±0.1 kg-m,
10.8±0.7 ft-lb).
(2) Then tighten an additional 60
+5°
−0°
turns with an angular tighten-
ing wrench.
: 15±1 N·m (1.5±0.1 kg-m, 11±0.7 ft-lb) plus
60
+5°
−0°
or
: 37 - 45 N·m (3.8 - 4.6 kg-m, 27 - 33 ft-lb)
4.
Measure connecting rod side clearance.
Connecting rod side clearance (Big end play):
Limit
0.3 mm (0.012 in)
FLYWHEEL RUNOUT
Runout (Total indicator reading):
Less than 0.15 mm (0.0059 in)
SEM620-A
EM03470000 or suitable tool
SEM364F
KV10112100
SEM365F
Feeler gauge
EM426
CYLINDER BLOCK
CD20T
Assembly (Cont’d)
EM-177
General Specifications
NCEM0028
Engine
QG16DE
QG18DE
Classification
Gasoline
Cylinder arrangement
4, in-line
Displacement
cm
3
(cu in)
1,596 (97.39)
1,769 (107.94)
Bore
×
stroke
mm (in)
76.0
×
88.0 (2.992
×
3.465)
80.0
×
88.0 (3.150
×
3.465)
Valve arrangement
DOHC
Firing order
1-3-4-2
Number of piston rings
Compression
2
Oil
1
Number of main bearings
5
Compression ratio
9.5
EM120
a
b
c
d
e
f
Valve timing
QG16DE
222°
228°
-4° (16°)
52° (32°)
−2°
44°
QG18DE
222°
236°
0° (20°)
56° (36°)
−2°
44°
(
): Valve timing control ON
Compression Pressure
NJEM0029
Unit: kPa (bar, kg/cm
2
, psi)/350 rpm
Standard
1,324 (13.24, 13.5, 192)
Minimum
1,128 (11.28, 11.5, 164)
Difference limit between cylinders
98 (0.98, 1.0, 14)
Cylinder Head
NCEM0030
Unit: mm (in)
Standard
Limit
Head surface flatness
Less than 0.03 (0.0012)
0.1 (0.004)
Height
117.8 - 118.0 (4.638 - 4.646)
—
SERVICE DATA AND SPECIFICATIONS (SDS)
QG
General Specifications
EM-178
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