Nissan Juke F15. Manual — part 655
EM-174
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
STRUCTURE AND OPERATION
STRUCTURE AND OPERATION
Main Motor System
INFOID:0000000012197364
• Weight is reduced through the use of a die-case aluminum cylinder block, aluminum alloy cylinder heads,
and other parts.
• Friction is reduced at the crankshaft, connecting rod bearings, piston rings, and other sliding parts for
improving fuel economy and output.
LOCATIONS OF MAIN COMPONENT PARTS
STRUCTURE AND OPERATION
EM-175
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
1.
Oil filler cap
2.
Rocker cover
3.
Rocker cover gasket
4.
Top ring
5.
Second ring
6.
Oil ring
7.
Piston
8.
Piston pin
9.
Connecting rod
10.
Connecting rod bearing
11.
Connecting rod cap
12.
Thrust bearing
13.
Main bearing (upper)
14.
Crankshaft
15.
Crankshaft key
16.
Front cover
17.
VTC cover
18.
Crankshaft pulley
JSBIA5754ZZ
EM-176
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
STRUCTURE AND OPERATION
LIST OF MAIN MOTOR SYSTEM DIMENSIONS
Unit: mm (in )
Valves
INFOID:0000000012197365
• A single-stage chain system is used for driving the DOHC mechanism with V valve layout and camshaft.
• A small-pitch silent chain is used for the timing chain. This allows a more compact and lightweight camshaft
drive system and also reduces drive system noise.
• A valve control system that controls the valve timing to the optimal timing according to driving conditions is
used.
19.
Front oil seal
20.
Main bearing (lower)
21.
Main bearing cap
22.
Main bearing beam
23.
Drain plug
24.
Oil pan (lower)
25.
Oil pan (upper)
26.
Signal plate
27.
Pilot converter
28.
Cylinder block
29.
Rear oil seal
30.
Drive plate
31.
Reinforcement plate
32.
Cylinder head gasket
33.
Cylinder head
34.
Camshaft bracket
A.
Piston compression height
B.
Distance between connecting rod
centers
C.
Crankshaft pin diameter
D.
Stroke (1/2)
E.
Crankshaft journal diameter
F.
Crankshaft total length
G.
Cylinder block total length
H.
Cylinder bore diameter
I.
Pitch between bores
J.
Cylinder block height (from crank-
shaft center)
Cylinder block height (from crankshaft center)
215.0 (8.46)
Cylinder block total length
413.2 (16.27)
Pitch between bores
92.0 (3.62)
Cylinder bore inner diameter
φ79.7 (3.13)
Stroke (1/2)
40.55 (1.60)
Crankshaft journal diameter
φ52.0 (2.05)
Crankshaft pin diameter
φ44.0 (1.73)
Crankshaft total length
456.45 (17.97)
Piston compression height
35.33 (1.39)
Distance between connecting rod centers
139.02 (5.47)
STRUCTURE AND OPERATION
EM-177
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
LOCATIONS OF MAIN COMPONENT PARTS
Intake/Exhaust System
INFOID:0000000012197366
• A cross-flow layout is used for the intake manifold.
• An exhaust manifold which is integrated with the turbocharger, and an charge air cooler are used for improv-
ing intake efficiency and increasing output.
• The intake manifold is made of plastic, and the exhaust manifold is made of cast iron.
• An electric throttle control actuator is used to optimize the amount of air intake.
MAIN COMPONENT PARTS
JSBIA5764ZZ
1.
Timing chain slack guide
2.
Chain tensioner
(for timing chain)
3.
Camshaft sprocket (EXH)
4.
Camshaft sprocket (INT)
5.
Timing chain
6.
Crankshaft sprocket
7.
Oil pump sprocket
8.
Oil pump drive chain
9.
Chain tensioner
(for oil pump drive chain)
10. Timing chain tension guide
11. Camshaft bracket
12. Camshaft (EXH)
13. Camshaft (INT)
14. Valve lifter
15. Valve collet
16. Valve spring retainer
17. Valve spring
18.
Valve spring seat
(with integrated valve spring)
19. Valve oil seal
20. Valve guide (INT)
21. Valve guide (EXH)
22. Cylinder head
23. Valve seat (EXH)
24. Valve seat (INT)
25. Valve (EXH)
26. Valve (INT)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст