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]

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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]

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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)