Nissan Juke (2012 year). Service Repair Manual - part 113

 

  Index      Manuals     Nissan Juke (2012 year) - Service and Repair Manual

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

Content      ..     111      112      113      114     ..

 

 

Nissan Juke (2012 year). Service Repair Manual - part 113

 

 

EM-90

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CAMSHAFT

2.

Install dial indicator in thrust direction on front end of camshaft.
Read the end play of dial indicator (A) when camshaft is moved
forward/backward (in direction to axis).

• Measure the following parts if out of the standard.
- Dimension (A) for groove of cylinder head No. 1 journal

- Dimension (B) for camshaft flange

• Refer to the standards above, and then replace camshaft and/

or cylinder head.

Camshaft Sprocket Runout

1.

Put V-block on precise flat table, and support No. 2 and 5 journals of camshaft.

CAUTION:

Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.

2.

Measure the camshaft sprocket runout with a dial indicator (A).
(Total indicator reading)

• If it exceeds the limit, replace camshaft sprocket.

Valve Lifter 

Check if surface of valve lifter has any wear or cracks.
• If anything above is found, replace valve lifter. Refer to 

EM-136,

"Camshaft"

.

Valve Lifter Clearance

VALVE LIFTER OUTER DIAMETER

Standard and Limit

: Refer to 

EM-136, "Camshaft"

.

PBIC3181J

Standard

: 4.000 - 4.030 mm (0.1575 - 0.1587 in)

Standard

: 3.877 - 3.925 mm (0.1526 - 0.1545 in)

PBIC3183J

Limit

: Refer to 

EM-136, "Camshaft"

.

JPBIA4413ZZ

KBIA0182E

Revision: 2011 October

2012 JUKE

CAMSHAFT

EM-91

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Measure the outer diameter of valve lifter with a micrometer (A).

VALVE LIFTER HOLE DIAMETER
Measure the inner diameter of valve lifter hole of cylinder head with
an inside micrometer (A).

VALVE LIFTER CLEARANCE
• (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter

outer diameter)

• If out of the standard, referring to the each standard of valve lifter

outer diameter and valve lifter hole diameter, replace either or both
valve lifter and cylinder head.

INSPECTION AFTER INSTALLATION

Inspection of Camshaft Sprocket (INT), (EXH) Oil Groove

CAUTION:

• Perform this inspection only when DTC P0011 or P0014 is detected in self-diagnostic results of CON-

SULT and it is directed according to inspection procedure of EC section. Refer to 

EC-165, "Diagnosis

Procedure"

 (P0011) or 

EC-168, "Diagnosis Procedure"

 (P0014).

• Check when engine is cold so as to prevent burns by the splashing engine oil.

1.

Check engine oil level. Refer to 

LU-7, "Inspection"

.

2.

Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.

a.

Release the fuel pressure. Refer to 

EC-136, "Work Procedure"

.

b.

Remove intake manifold. Refer to 

EM-27, "Exploded View"

.

c.

Disconnect ignition coil and injector harness connectors.

d.

Support the bottom surface of engine using a transmission jack, and then remove the engine mounting
bracket (RH) and engine mounting insulator (RH). Refer to 

EM-59, "2WD : Exploded View"

 (M/T models)

or 

EM-64, "4WD (AWD) : Exploded View"

 (CVT models).

3.

Remove intake or exhaust valve timing control solenoid valve. Refer to 

EM-72, "Exploded View"

.

• Lift the front side of the engine with a jack base to remove intake or exhaust valve timing control sole-

noid valve.

4.

Clean the mounting area of intake or exhaust valve timing control solenoid valve, and then insert a clean
waste with no oil adhesion into the oil hole of the cylinder head.

5.

Install engine mounting insulator (RH) and engine mounting bracket (RH). (After the removal of intake or
exhaust valve timing control solenoid valve and insertion of a waste into the oil hole.)

6.

Perform cranking to check that engine oil comes out from the oil hole (mounting hole of intake or exhaust
valve timing control solenoid valve) of cylinder head.
• Regarding the engine oil check, judge it by the amount of oil adhered to the wasted inserted into the oil

hole.

WARNING:

• Never insert fingers into the oil hole.
• Be careful not to touch rotating parts (drive belt, idler pulleys and crankshaft pulley, etc.).

Standard

: Refer to 

EM-136, "Camshaft"

.

PBIC3185J

Standard

: Refer to 

EM-136, "Camshaft"

.

Standard

: Refer to 

EM-136, "Camshaft"

.

PBIC3184J

Revision: 2011 October

2012 JUKE

EM-92

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CAMSHAFT

CAUTION:

• Never perform cranking without installing the engine mounting insulator (RH) and engine mount-

ing bracket (RH).

• Prevent splashing by using a shop cloth so as to prevent the worker from injury from engine oil

and so as to prevent engine oil contamination.

• Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to

engine and vehicle. Especially, be careful not to apply engine oil to rubber parts of drive belt,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.

7.

Perform the following inspection if engine oil does not come out from intake or exhaust valve timing con-
trol solenoid valve oil hole of the cylinder head.
• Clean oil groove between oil strainer and intake or exhaust valve timing control solenoid valve. Refer to

LU-6, "Engine Lubrication System"

 and 

LU-6, "Engine Lubrication System Schematic"

.

8.

Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT) or
exhaust valve control solenoid valve and camshaft sprocket (EXH), and then check each oil groove for
clogging.
• Clean oil groove if necessary. Refer to 

LU-6, "Engine Lubrication System"

 and 

LU-6, "Engine Lubrica-

tion System Schematic"

.

9.

After inspection, install removed parts in the reverse order.

Revision: 2011 October

2012 JUKE

OIL SEAL

EM-93

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

OIL SEAL

VALVE OIL SEAL

VALVE OIL SEAL : Removal and Installation

INFOID:0000000007577477

REMOVAL

1.

Remove camshafts. Refer to 

EM-84, "Exploded View"

.

2.

Remove valve lifters. Refer to 

EM-84, "Exploded View"

.

3.

Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.

CAUTION:

When rotating crankshaft, be careful to avoid scarring front cover with timing chain.

4.

Remove valve collet. 
• Compress valve spring with the valve spring compressor [SST:

KV10116200 (J-26336-A)] (A), the attachment [SST:
KV10115900 (J-26336-20)] (C), and the adapter [SST:
KV10109220 (

)] (B). Remove valve collet with magnet

hand.

CAUTION:

• Be careful not to damage valve lifter holes.
• Fit the attachment [SST: KV10115900 (J-26336-20)] in the

center of valve spring retainer to press it.

5.

Remove valve spring retainer and valve spring (with valve spring seat).

CAUTION:

Never remove valve spring seat from valve spring.

6.

Remove valve oil seal with the valve oil seal puller [SST:
KV10107902 (J-38959)] (A).

INSTALLATION

1.

Apply new engine oil to valve oil seal joint surface and seal lip.

JPBIA1365ZZ

1

: Valve spring retainer

A

:  Attachment

JPBIA4477ZZ

PBIC3210J

Revision: 2011 October

2012 JUKE

EM-94

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

OIL SEAL

2.

Press in valve oil seal to the height (H) shown in the figure with
the valve oil seal drift [SST: KV10115600 (J-38958)] (A).

3.

Install in the reverse order of removal, for the rest of parts.

FRONT OIL SEAL

FRONT OIL SEAL : Removal and Installation

INFOID:0000000007577478

REMOVAL

1.

Remove the following parts.
• Front fender protector (RH): Refer to 

EXT-21, "Exploded View"

.

• Drive belt: Refer to 

EM-18, "Exploded View"

.

• Crankshaft pulley: Refer to 

EM-72, "Exploded View"

.

2.

Remove front oil seal with a suitable tool.

CAUTION:

Be careful not to damage front cover and crankshaft.

INSTALLATION

1.

Apply new engine oil to new front oil seal joint surface and seal lip.

2.

Install front oil seal so that each seal lip is oriented as shown in
the figure.

• Press-fit front oil seal using a suitable drift with outer diameter 57 mm (2.24 in) and inner diameter 45

mm (1.77 in).

CAUTION:

• Be careful not to damage front cover and crankshaft.
• Press-fit oil seal straight to avoid causing burrs or tilting.

3.

Install in the reverse order of removal, for the rest of parts.

REAR OIL SEAL

REAR OIL SEAL : Removal and Installation

INFOID:0000000007577479

REMOVAL

Height (H)

: 15.1 - 15.7 mm (0.594 - 0.618 in)

PBIC3211J

A

: Dust seal lip

B

:  Oil  seal  lip

: Engine outside

: Engine inside

PBIC3485J

Within 0.3 mm (0.012 in) toward engine front (crankshaft pulley side)

Within 0.5 mm (0.020 in) toward engine rear (crankshaft sprocket side)

Revision: 2011 October

2012 JUKE

OIL SEAL

EM-95

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

1.

Remove transaxle assembly. Refer to 

TM-242, "2WD : Exploded View"

 (CVT / 2WD models) or 

TM-246,

"AWD : Exploded View"

 (CVT / AWD models) or 

TM-25, "Exploded View"

 (M/T models).

2.

Remove clutch cover and clutch disk (M/T models). Refer to 

EM-110, "Exploded View"

.

3.

Remove drive plate (CVT models) or flywheel (M/T models). Refer to 

EM-110, "Exploded View"

.

4.

Remove rear oil seal with a suitable tool.

CAUTION:

Be careful not to damage crankshaft and cylinder block.

INSTALLATION

1.

Apply the liquid gasket lightly to entire outside area of new rear oil seal.
Use Genuine RTV silicon sealant or equivalent. Refer to 

GI-22, "Recommended Chemical Products

and Sealants"

.

2.

Install rear oil seal so that each seal lip is oriented as shown in
the figure.

• Press-fit rear oil seal with a suitable drift (A) outer diameter

115 mm (4.53 in) and inner diameter 90 mm (3.54 in).

CAUTION:

• Be careful not to damage crankshaft and cylinder block.
• Press-fit oil seal straight to avoid causing burrs or tilt-

ing.

• Never touch grease applied onto oil seal lip.

• Press in rear oil seal (1) to the position as shown in the figure.

3.

Install in the reverse order of removal, for the rest of parts.

A

: Dust seal lip

B

: Oil seal lip

: Engine outside

: Engine inside

PBIC3485J

JPBIA4414ZZ

A

: Rear end surface of cylinder block

PBIC3952E

Revision: 2011 October

2012 JUKE

EM-96

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CYLINDER HEAD

CYLINDER HEAD

Exploded View

INFOID:0000000007577480

CAUTION:

Read PRECAUTION carefully.
The exhaust valve contains metallic sodium. Therefore, extreme caution must be taken when handling
and disposing of the exhaust valve. Refer to 

EM-4, "Special Cautions to Ensure the Safe Disposal of

Sodium-filled Exhaust Valves"

REMOVAL

DISASSEMBLY

1.

Cylinder head assembly

2.

Cylinder head bolt

3.

Cylinder head gasket

A.

Comply with the assembly procedure 
when tightening. Refer to 

EM-97

.

 : N·m (kg-m, ft-lb)

 : Always replace after every disassembly.

 : Should be lubricated with oil.

JPBIA4316ZZ

Revision: 2011 October

2012 JUKE

CYLINDER HEAD

EM-97

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

Removal and Installation

INFOID:0000000007577481

REMOVAL

CAUTION:

Read PRECAUTION carefully.
The exhaust valve contains metallic sodium. Therefore, extreme caution must be taken when handling
and disposing of the exhaust valve. Refer to 

EM-4, "Special Cautions to Ensure the Safe Disposal of

Sodium-filled Exhaust Valves"

1.

Remove the following components and related parts.
• Exhaust manifold: Refer to 

EM-41, "Exploded View"

.

• Intake manifold: Refer to 

EM-27, "Exploded View"

.

• Fuel injector and fuel tube assembly: Refer to 

EM-51, "Exploded View"

.

• Water outlet: Refer to 

CO-23, "Exploded View"

.

• Rocker cover: Refer to 

EM-22, "Exploded View"

.

• Front cover, timing chain: Refer to 

EM-72, "Exploded View"

.

1.

Valve collet

2.

Valve spring retainer

3.

Valve spring (EXH)

4.

valve spring seat

5.

Valve oil seal

6.

Valve guide (EXH)

7.

Valve seat (EXH)

8.

Valve (EXH)

9.

Valve (INT)

10. Valve seat (INT)

11. Cylinder head

12. Valve guide (INT)

13. Spark plug

14. Valve spring (INT)

A.

Replacement must be following the 
disassembly and assembly proce-
dure. Refer to 

EM-98

 : N·m (kg-m, ft-lb)

 : Always replace after every disassembly.

 : Should be lubricated with oil.

JPBIA4317GB

Revision: 2011 October

2012 JUKE

EM-98

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CYLINDER HEAD

• Camshaft: Refer to 

EM-84, "Exploded View"

.

2.

Remove cylinder head.
• Loosen cylinder head bolts in reverse order as shown in the

figure. 

• Using TORX socket, loosen cylinder head bolts.

3.

Remove cylinder head gasket.

INSTALLATION

1.

Install cylinder head gasket.

2.

Install cylinder head, and tighten cylinder head bolts in numeri-
cal order as shown in the figure with the following procedure.

CAUTION:

If cylinder head bolts are reused, check their outer diame-
ters before installation. Refer to 

EM-103, "Inspection"

.

a.

Apply new engine oil to threads and seating surface of mounting
bolts.

b.

Tighten all cylinder head bolts.

c.

Turn all cylinder head bolts 100 degrees clockwise (angle tightening).

CAUTION:

Check and confirm the tightening angle by using an angle
wrench [SST: KV10112100 (BT8653-A)] (A) or protractor.
Never judge by visual inspection without the tool.

d.

Completely loosen.

CAUTION:

In this step, loosen cylinder head bolts in reverse order that
indicated in the figure.

e.

Tighten all cylinder head bolts.

f.

Turn all cylinder head bolts 95 degrees clockwise (angle tightening).

g.

Turn all cylinder head bolts 95 degrees clockwise again (angle tightening).

3.

Install in the reverse order of removal, for the rest of parts. 

Disassembly and Assembly

INFOID:0000000007577482

DISASSEMBLY

1.

Remove spark plug with spark plug wrench (commercial service tool).

2.

Remove valve lifter.
• Identify installation positions, and store them without mixing them up.

: Engine front

JPBIA4415ZZ

: Engine front

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

: 0 N·m (0 kg-m, 0 ft-lb)

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

JPBIA4415ZZ

JPBIA4435ZZ

Revision: 2011 October

2012 JUKE

CYLINDER HEAD

EM-99

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

3.

Remove valve collet. 
• Compress valve spring with the valve spring compressor [SST:

KV10116200 (J-26336-A)] (A), the attachment [SST:
KV10115900 (J-26336-20)] (C), and the adapter [SST:
KV10109220 (

)] (B). Remove valve collet with a magnet

hand.

CAUTION:

• Be careful not to damage valve lifter holes.
• Fit the attachment [SST: KV10115900 (J-26336-20)] in the

center of valve spring retainer to press it.

4.

Remove valve spring retainer and valve spring (with valve spring seat).

CAUTION:

Never remove valve spring seat from valve spring.

5.

Push valve stem to combustion chamber side, and remove valve. 
• Identify installation positions, and store them without mixing them up.

6.

Remove valve oil seal with a valve oil seal puller [SST:
KV10107902 (J-38959)] (A).

7.

When valve seat must be replaced.
• Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat

recess in cylinder head. Set the machine depth stop to ensure this. Refer to 

EM-138, "Cylinder Head"

.

CAUTION:

Never bore excessively to prevent cylinder head from scratching.

8.

When valve guide must be replaced.

JPBIA1365ZZ

1

: Valve spring retainer

A

:  Attachment

JPBIA4477ZZ

PBIC3210J

Revision: 2011 October

2012 JUKE

EM-100

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CYLINDER HEAD

a.

To remove valve guide, heat cylinder head to 110 to 130

°

C (230

to 266

°

F) by soaking in heated oil (A).

b.

Drive out valve guide with a hammer and valve guide drift (com-
mercial service tool).

CAUTION:

Cylinder head contains heat, wear protective equipment to
avoid getting burned.

ASSEMBLY

1.

When valve guide is removed, install it. 

CAUTION:

Replace with oversize [0.2 mm (0.008 in)] valve guide.

a.

Ream cylinder head valve guide hole with a valve guide reamer
(commercial service tool) (A).

b.

Heat cylinder head to 110 to 130

°

C (230 to 266

°

F) by soaking in

heated oil (A).

PBIC3214J

SEM931C

For service parts: Oversize [0.2 mm (0.008 in)] 

Refer to 

EM-138, "Cylinder Head"

.

PBIC3215J

PBIC3214J

Revision: 2011 October

2012 JUKE

CYLINDER HEAD

EM-101

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

c.

Press valve guide (1) from camshaft side to dimensions as
shown in the figure.

CAUTION:

Cylinder head contains heat, wear protective equipment to
avoid getting burned.

d.

Apply reamer finish to valve guide with a valve guide reamer
(commercial service tool) (A).

2.

When valve seat is removed, install it. 

CAUTION:

Replace with oversize [0.5 mm (0.020 in)] valve seat.

a.

Ream cylinder head (1) recess diameter for service valve seat
(2).

• Be sure to ream in circles concentric to the valve guide center.

This will enable valve seat to fit correctly.

b.

Heat cylinder head to 110 to 130

°

C (230 to 266

°

F) by soaking in

heated oil (A).

c.

Provide valve seats cooled well with dry ice. Press-fit valve seat into cylinder head.

CAUTION:

• Never touch cold valve seats directly.
• Cylinder head contains heat, wear protective equipment to avoid getting burned.

2

: Cylinder head

Projection (H)

: Refer to 

EM-138, "Cylinder Head"

.

PBIC3217J

Standard

: Refer to 

EM-138, "Cylinder Head"

.

PBIC3215J

For service parts: Oversize [0.5 mm (0.020 in)]

Refer to 

EM-138, "Cylinder Head"

.

PBIC3218J

PBIC3214J

Revision: 2011 October

2012 JUKE

EM-102

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CYLINDER HEAD

d.

Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish valve seat to the specified dimensions. For
dimensions, refer to 

EM-138, "Cylinder Head"

.

CAUTION:

When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on with the cutter or cutting many different times
may result in stage valve seat. 

e.

Using compound, grind to adjust valve fitting. 

f.

Check again for normal contact. Refer to 

EM-103, "Inspection"

.

3.

Install valve oil seal.
• Install with a valve oil seal drift [SST: KV10115600 (J-38958)]

(A) to match dimension in the figure.
NOTE:
Dimension is height that measured before installing valve
spring (with valve spring seat).

4.

Install valve.
• Install larger diameter to intake side.

5.

Install valve spring (with valve spring seat).
• Install smaller pitch (valve spring seat side) to cylinder head

side (B).

• Confirm identification color (A) of valve spring.

6.

Install valve spring retainer.

7.

Install valve collet.
• Compress valve spring with the valve spring compressor [SST:

KV10116200 (J-26336-A)] (A), the attachment [SST:
KV10115900 (J-26336-20)] (C), and the adapter [SST:
KV10109220 (

)] (B). Install valve collet with a magnet

hand.

CAUTION:

When working care not to damage valve lifter holes.

• Tap valve stem edge lightly with a plastic hammer after instal-

lation to check its installed condition.

8.

Install valve lifter.
• Install it in the original position.

9.

Install spark plug with spark plug wrench (commercial service tool).

SEM934C

Height (H)

: 15.1 - 15.7 mm (0.594 - 0.618 in)

PBIC3211J

1

: Valve spring seat (Do not remove from valve spring.)

Intake

: White

Exhaust

: Yellow green

JPBIA4479ZZ

JPBIA1365ZZ

Revision: 2011 October

2012 JUKE

CYLINDER HEAD

EM-103

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

Inspection

INFOID:0000000007577483

INSPECTION AFTER REMOVAL

Cylinder Head Bolts Outer Diameter

• Cylinder head bolts are tightened by plastic zone tightening

method. Whenever the size difference between (d1) and (d2)
exceeds the limit, replace them with a new one. 

• If reduction of outer diameter appears in a position other than (d2),

use it as (d2) point.

Cylinder Head Distortion

NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to 

EM-119, "Inspec-

tion"

.

1.

Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.

CAUTION:

Never allow gasket debris to enter passages for engine oil or water.

2.

At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions using straightedge (A)
and feeler gauge (B).

• If it exceeds the limit, replace cylinder head.

INSPECTION AFTER DISASSEMBLY

VALVE DIMENSIONS

• Check the dimensions of each valve. For the dimensions, refer to 

EM-138, "Cylinder Head"

.

• If dimensions are out of the standard, replace valve and check valve seat contact. Refer to “VALVE SEAT

CONTACT”.

VALVE GUIDE CLEARANCE

Valve Stem Diameter

• Measure the diameter of valve stem with micrometer (A).

Valve Guide Inner Diameter

• Measure the inner diameter of valve guide with bore gauge.

Valve Guide Clearance

• (Valve guide clearance) = (Valve guide inner diameter) – (Valve

stem diameter)

Limit [(d1) – (d2)]: 0.15 mm (0.0059 in)

PBIC3994E

Limit: Refer to 

EM-138, "Cylinder Head"

.

PBIC3207J

Standard: Refer to 

EM-138, "Cylinder Head"

.

Standard: Refer to 

EM-138, "Cylinder Head"

.

Standard and Limit: Refer to 

EM-138, "Cylinder Head"

.

PBIC3213J

Revision: 2011 October

2012 JUKE

EM-104

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

CYLINDER HEAD

• If the calculated value exceeds the limit, replace valve and/or valve guide. When valve guide must be

replaced. Refer to 

EM-98, "Disassembly and Assembly"

.

VALVE SEAT CONTACT

• After confirming that the dimensions of valve guides and valves are within the specifications, perform this

procedure.

• Apply prussian blue (or white lead) onto contacting surface of valve seat to check the condition of the valve

contact on the surface.

• Check if the contact area band is continuous all around the circum-

ference.

• If not, grind to adjust valve fitting and check again. If the contacting

surface still has “NG” conditions (B) even after the recheck,
replace valve seat. Refer to 

EM-98, "Disassembly and Assembly"

.

VALVE SPRING SQUARENESS

• Set a try square (A) along the side of valve spring and rotate

spring. Measure the maximum clearance between the top of spring
and try square.

• If it exceeds the limit, replace valve spring.

VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD

• Check valve spring pressure with valve spring seat installed at the

specified spring height.

CAUTION:

Never remove valve spring seat from valve spring.

• If the installation load or load with valve open is out of the stan-

dard, replace valve spring (with valve spring seat).

INSPECTION AFTER INSTALLATION

Inspection for Leakage

The following are procedures for checking fluids leakage, lubricates leakage, and exhaust gases leakage.
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to 

MA-10, "Fluids and Lubricants"

.

• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to check there is no leakage of fuel, exhaust gases, or any oil/fluids including

engine oil and engine coolant.

• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the

specified level, if necessary.

A

:  OK

JPBIA0187ZZ

B

:  Contact

Limit

: Refer to 

EM-138, "Cylinder Head"

.

JPBIA4391ZZ

Standard

: Refer to 

EM-138, "Cylinder Head"

.

SEM113

Revision: 2011 October

2012 JUKE

CYLINDER HEAD

EM-105

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

Summary of the inspection items:

*: Power steering fluid, brake fluid, etc.

Items

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission / 
transaxle fluid

AT & CVT Models

Leakage

Level / Leakage

Leakage

MT Models

Level / Leakage

Leakage

Level / Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gases

Leakage

Revision: 2011 October

2012 JUKE

 

 

 

 

 

 

 

Content      ..     111      112      113      114     ..