Nissan Qashqai J11. Manual — part 77
HOW TO SELECT PISTON AND BEARING
EM-247
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
In grinding crankshaft main journal to use undersize bearings,
keep the fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)] (A).
Bearing undersize table:
PBIC3263J
EM-248
< SERVICE DATA AND SPECIFICATIONS (SDS)
[MR20DD]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specification
INFOID:0000000010735677
GENERAL SPECIFICATIONS
Unit: degree
Drive Belt
INFOID:0000000010735678
DRIVE BELT
Spark Plug
INFOID:0000000010735679
SPARK PLUG
Engine type
MR20DD
Cylinder arrangement
In-line 4
Displacement cm
3
(cu in)
1,997 (121.86)
Bore and stroke mm (in)
84.0
×
90.1 (3.307
×
3.547)
Valve arrangement
DOHC
Firing order
1-3-4-2
Number of piston rings
Compression
2
Oil
1
Compression ratio
11.2
Compression pressure
kPa (bar, kg/cm
2
, psi)/250 rpm
Standard
1,530 (15.3, 15.6, 222)
Minimum
1,280 (12.8, 13.1, 186)
Differential limit between cylinders
100 (1.0, 1.0, 15)
Valve timing
: Intake valve
: Exhaust valve
VTC Minimum phasing (Mechanical)
VTC Maximum phasing (Mechanical)
a
EXH valve open-
ing angle
b
INT valve open-
ing angle
c
INT open
d
INT close
e
EXH close
f
EXH open
VTC Minimum
phasing (Mechani-
cal)
220
240
18
78
0
40
VTC Maximum
phasing (Mechani-
cal)
24
36
57
17
JPBIA6790GB
JPBIA6791GB
Tension of drive belt
Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-249
< SERVICE DATA AND SPECIFICATIONS (SDS)
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Unit: mm (in)
Exhaust Manifold
INFOID:0000000010735680
EXHAUST MANIFOLD
Unit: mm (in)
Camshaft
INFOID:0000000010735681
CAMSHAFT
Unit: mm (in)
*: Total indicator reading
VALVE LIFTER
Unit: mm (in)
Make
NGK
Standard type
DILKAR7D11H
Gap (Nominal)
Standard
1.1 (0.043)
Limit
1.3 (0.051)
Items
Limit
Surface distortion
Each exhaust port
0.3 (0.012)
Entire part
0.7 (0.028)
Items
Standard
Limit
Camshaft journal oil clearance
No. 1
0.045 - 0.086 (0.0018 - 0.0034)
0.15 (0.0059)
No. 2, 3, 4, 5
0.030 - 0.071 (0.0012 - 0.0028)
Camshaft bracket inner diameter
No. 1
28.000 - 28.021 (1.1024 - 1.1032)
—
No. 2, 3, 4, 5
25.000 - 25.021 (0.9843 - 0.9851)
—
Camshaft journal diameter
No. 1
27.935 - 27.955 (1.0998 - 1.1006)
—
No. 2, 3, 4, 5
24.950 - 24.970 (0.9823 - 0.9831)
—
Camshaft end play
0.075 - 0.153 (0.0030 - 0.0060)
0.24 (0.0094)
Camshaft cam height “A”
Intake
45.265 - 45.455 (1.7821 - 1.7896)
45.085 (1.7750)
Exhaust
43.775 - 43.965 (1.7234 - 1.7309)
43.575 (1.7156)
Camshaft runout [TIR*]
Less than 0.02 (0.0008)
0.05 (0.0020)
Camshaft sprocket runout [TIR*]
—
0.15 (0.0059)
SEM671
Items
Standard
Valve lifter outer diameter
Intake
33.977 - 33.987 (1.3377 - 1.3381)
Exhaust
29.977 - 29.987 (1.1802 - 1.1806)
EM-250
< SERVICE DATA AND SPECIFICATIONS (SDS)
[MR20DD]
SERVICE DATA AND SPECIFICATIONS (SDS)
VALVE CLEARANCE
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
AVAILABLE VALVE LIFTER
Unit: mm (in)
Valve lifter hole diameter
Intake
34.000 - 34.021 (1.3386 - 1.3394)
Exhaust
30.000 - 30.021 (1.1811 - 1.1819)
Valve lifter clearance
0.013 - 0.044 (0.0005 - 0.0017)
Items
Cold
Hot* (reference data)
Intake
0.24 - 0.32 (0.009 - 0.013)
0.304 - 0.416 (0.012 - 0.016)
Exhaust
0.26 - 0.34 (0.010 - 0.013)
0.308 - 0.432 (0.012 - 0.017)
Identification mark
Thickness
300H
3.00 (0.1181)
302H
3.02 (0.1189)
304H
3.04 (0.1197)
306H
3.06 (0.1205)
308H
3.08 (0.1213)
310H
3.10 (0.1220)
312H
3.12 (0.1228)
314H
3.14 (0.1236)
316H
3.16 (0.1244)
318H
3.18 (0.1252)
320H
3.20 (0.1260)
322H
3.22 (0.1268)
324H
3.24 (0.1276)
326H
3.26 (0.1283)
328H
3.28 (0.1291)
330H
3.30 (0.1299)
332H
3.32 (0.1307)
334H
3.34 (0.1315)
336H
3.36 (0.1323)
338H
3.38 (0.1331)
340H
3.40 (0.1339)
342H
3.42 (0.1346)
344H
3.44 (0.1354)
JPBIA0170ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст