Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 6

 

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Qashqai J11. Engine mechanical (HRA2DDT, K9K, MR20DD) - part 6

 

 

CAMSHAFT

EM-81

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a.

Clean and degrease cylinder head closing plate.

b.

Apply a continuous bead of liquid gasket with tube presser
(commercial service tool) to cylinder head closing plate as
shown in the figure.  
Use Genuine Liquid Gasket or equivalent.

NOTE:
Liquid gasket must be applied at a distance of 1.0 mm (0.04 in)
to 2.0 mm (0.08 in) from the inside edge of the cylinder head
closing plate. 

CAUTION:

Applying excess of liquid gasket can create damage on the
parts during tightening sequency.

c.

Install cylinder head closing plate and bolts. Refer to 

EM-77, "Exploded View"

d.

Tighten cylinder head closing plate bolts.

6.

Install the camshaft sprockets (INT and EXH) to the camshafts
(INT and EXH) with the following procedure.

a.

Check that the camshaft lugs (1) are still in the same position as
shown in the figure.

b.

Install camshaft sprockets and mounting bolts (INT and EXH).

c.

Tighten the camshaft sprockets mounting bolts (INT and EXH).
• Hold camshaft using open end spanner (1)
• Tighten camshaft sprocket mounting bolt.

7.

Install timing chain. Refer to 

EM-59, "Removal and Installation"

.

8.

Check and adjust valve clearance. Refer to 

EM-84, "Inspection and Adjustment"

.

9.

When replacing valve timing control solenoide valve. Refer to 

ECH-102, "Special Repair Requirement

List"

.

Inspection

INFOID:0000000010282233

INSPECTION AFTER REMOVAL

Oil Filter

• Check that there is no foreign material on the oil filter and check it for clogging.
• Check the oil filter for damage.
• If there is some damage, replace the oil filter, the plug, and the washer as a set.

Camshaft Runout

1.

Liquid gasket application area [

φ

3.0 - 4.0 mm (0.12 - 0.16 in)]

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

E1BIA1057ZZ

E1BIA1096ZZ

: 75 N·m (7.7 kg-m, 55 ft-lb)

E1BIA1061ZZ

EM-82

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

1.

Put V-block on a precise flat table, and support 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.

Set a dial indicator vertically to journal.

3.

Turn camshaft one turn with hands while avoiding the lubrifica-
tion holes to check camshaft runout. 

4.

If it exceeds the limit, replace camshaft.

Camshaft Cam Height

1.

Measure the camshaft cam height with a micrometer (A).

2.

If wear exceeds the limit, replace camshaft.

Camshaft Journal Oil Clearance

CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of camshaft journal with a micrometer
(A).

CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with the specified torque. Refer to "INSTALLATION" for the tightening proce-

dure.

• Measure inner diameter (B) of camshaft bracket with a bore gauge

(A).

CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)

Standard and Limit

: Refer to 

EM-114, "Camshaft"

.

PBIC2499E

Standard and Limit

Intake

: Refer to 

EM-114, "Camshaft"

.

Exhaust

Cam wear limit:

: Refer to 

EM-114, "Camshaft"

.

PBIC3178J

Standard:

: Refer to 

EM-114, "Camshaft"

.

PBIC3179J

Standard

: Refer to 

EM-114, "Camshaft"

.

JPBIA4192ZZ

CAMSHAFT

EM-83

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• If it exceeds the limit, replace either or both camshaft and cylinder head.

NOTE:
Camshaft brackets cannot be replaced as single parts, because they are machined together with cylinder
head. Replace whole cylinder head assembly.

Camshaft End Play

1.

Install camshaft in cylinder head. Refer to 

EM-77, "Removal and Installation"

 for tightening procedure.

2.

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

Valve Lifter 

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

EM-114,

"Camshaft"

.

Valve Lifter Clearance

VALVE LIFTER OUTER DIAMETER
• Measure the outer diameter of valve lifter with a micrometer (A).

VALVE LIFTER HOLE DIAMETER

Standard and Limit

: Refer to 

EM-114, "Camshaft"

.

Standard and Limit

: Refer to 

EM-114, "Camshaft"

.

PBIC3694E

KBIA0182E

Standard

: Refer to 

EM-114, "Camshaft"

.

PBIC3185J

EM-84

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

Measure the 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 diame-

ter, replace either or both valve lifter and cylinder head.

INSPECTION AFTER INSTALLATION

Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak.

• 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-59, "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.

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

• Warm up engine thoroughly to check there is no leakage of fuel, 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.

Summary of the inspection items:

*: Power steering fluid, brake fluid, etc.

Inspection and Adjustment

INFOID:0000000010282208

INSPECTION

Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance. 

1.

Remove rocker cover. Refer to 

EM-49, "Exploded View"

.

Standard

: Refer to 

EM-114, "Camshaft"

.

PBIC3184J

Standard

: Refer to 

EM-114, "Camshaft"

.

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

CAMSHAFT

EM-85

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2.

Measure the valve clearance with the following procedure:

a.

Set cam to be checked in the same position as shown in the figure.
• Rotate camshaft to set cam noses in the correct position.

b.

Use a feeler gauge (A), measure the clearance between valve
lifter and camshaft. 

3.

If out of standard, perform adjustment. Refer to “ADJUSTMENT”.

ADJUSTMENT

• Perform adjustment depending on selected head thickness of valve lifter.
1.

Remove camshaft. Refer to 

EM-77, "Exploded View"

.

2.

Remove valve lifters at the locations that are out of the standard.

3.

Measure the center thickness of the removed valve lifters with a
micrometer (A).

4.

Use the equation below to calculate valve lifter thickness for replacement.

A : Cam noses facing upward

E1BIA1097ZZ

Valve clearance

: Refer to 

EM-84, "Inspection and Ad-

justment"

.

E1BIA1098ZZ

PBIC3195J

Valve lifter thickness calculation:

t = t

1

 + (C

– C

2

)

t

= Valve lifter thickness to be replaced

t

1

= Removed valve lifter thickness

C

1

= Measured valve clearance

C

2

= Standard valve clearance:

Intake

: 0.30 mm (0.012 in)

Exhaust

: 0.50 mm (0.020 in)

EM-86

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CAMSHAFT

• Thickness of new valve lifter (A) can be identified by stamp

mark (B) on the reverse side (inside the cylinder).

• Stamp mark “302” indicates 3.02 mm (0.1189 in) in thickness.

NOTE:
Available thickness of valve lifter: 31 sizes range 2.96 to 3.56 mm (0.1165 to 0.1402 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to 

EM-114, "Camshaft"

.

5.

Install the selected valve lifter.

6.

Install camshaft. Refer to 

EM-77, "Exploded View"

.

7.

Install timing chain and related parts. Refer to 

EM-58, "Exploded View"

.

8.

Manually rotate crankshaft pulley a few rotations. 

9.

Check that the valve clearances is within the standard. Refer to “

EM-84, "Inspection and Adjustment"

”.

10. Install remaining parts in the reverse order of removal.

11. Warm up the engine, and check for unusual noise and vibration.

E1BIA1099ZZ

OIL SEAL

EM-87

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OIL SEAL

FRONT OIL SEAL

FRONT OIL SEAL : Removal and Installation

INFOID:0000000010282235

REMOVAL

1.

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

EXT-32, "Removal and Installation"

.

• Drive belt: Refer to 

EM-21, "Removal and Installation"

.

• Crankshaft pulley: Refer to 

EM-93, "Exploded View"

.

2.

Position a shim (1) on the timing cover.

3.

Remove front oil seal using a flat blade screw driver (2).
NOTE:
Be careful to position the flat head of the screw driver behind the
outer lip of the crankshaft seal.

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.

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:0000000010282236

REMOVAL

1.

Remove transaxle assembly. Refer to 

TM-35, "Exploded View"

.

2.

Remove clutch cover and clutch disk. Refer to 

CL-22, "HRA2DDT : Removal and Installation"

.

3.

Remove flywheel. Refer to 

EM-93, "Exploded View"

.

E1BIA1071ZZ

A

: Dust seal lip

B

: Oil seal lip

: Engine outside

: Engine inside

PBIC3485J

EM-88

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

OIL SEAL

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 Liquid Gasket or equivalent.

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).

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.

E1BIA1076ZZ

A

: Dust seal lip

B

:  Oil  seal  lip

: Engine outside

: Engine inside

PBIC3485J

PBIC3660E

A

: Rear end surface of cylinder block

b

: 0 - 0.5 mm (0 - 0.020 in)

PBIC3149J

OIL PAN (UPPER)

EM-89

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OIL PAN (UPPER)

Exploded View

INFOID:0000000010282247

Refer to 

GI-4, "Components"

 for symbols in the figure.

Removal and Installation

INFOID:0000000010282248

REMOVAL

1.

Separate engine from gearbox.

2.

Remove clutch disk and clutch cover. Refer to 

CL-22, "HRA2DDT : Exploded View"

.

1.

Baffle plate

2.

Dowel pin

3.

Oil pan (upper)

4.

Oil pump release valve

5.

Oil filter

6.

O-ring

7.

Oil level sensor

8.

Oil filter cover

9.

Metal clip

10. Oil pump solenoide valve

11.

Oil pump solenoide valve O-ring

12. Drain plug washer

13. Oil pan lower

14. Oil pump strainer

15. Oil pump strainer O-ring

16. Oil pump bracket

17. Oil pump

A.

Refer to 

EM-89, "Removal and In-

stallation"

B.

Refer to 

EM-46, "Removal and In-

stallation"

E1BIA1045GB

EM-90

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

OIL PAN (UPPER)

3.

Remove flywheel. Refer to 

EM-93, "Exploded View"

.

4.

Remove oil filter. Refer to 

LU-10, "Removal and Installation"

.

5.

Remove the timing chain. Refer to 

EM-58, "Exploded View"

.

6.

Remove the oil level sensor. Refer to 

EM-89, "Exploded View"

.

7.

Remove the oil pan (lower). Refer to 

EM-46, "Exploded View"

.

8.

Remove the oil pump. Refer to 

LU-11, "Exploded View"

.

9.

Remove oil cooler. Refer to 

LU-13, "Exploded View"

.

10. Remove oil pan (upper) with the following procedure.

a.

Loosen oil pan (upper) mounting bolts in the reverse of the order as shown in the figure.

CAUTION:

Take care to note the place and length of each bolt
removed.

b.

Insert a flat-bladed screwdriver (1) and open up a crack between the oil pan (upper) cylinder block.

CAUTION:

• Be careful not to damage the mating surface.

: Engine front

E1BIA1101ZZ

E1BIA1046ZZ

OIL PAN (UPPER)

EM-91

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c.

Insert the seal cutter [SST: KV10111100] (1) between the oil pan
(upper) and cylinder block. Slide seal cutter by tapping on the
side of tool with a hammer.

CAUTION:

• Be careful not to damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-

vious types when shipped, so it should not be forced off
using a screwdriver, etc. outside the indicated location.

d.

Remove oil pan (upper)

e.

Remove oil pan (upper) O-ring (1).

11. Remove rear oil seal from crankshaft. Refer to 

EM-87, "REAR OIL SEAL : Removal and Installation"

INSTALLATION

1.

Install the oil pan (upper) in the following procedure:

a.

Use scraper to remove old liquid gasket from mating surfaces.
• Also remove the old liquid gasket from mating surface of cylinder block.
• Remove old liquid gasket from the bolt holes and threads.

CAUTION:

Never scratch or damage the mating surfaces when cleaning off old liquid gasket.

b.

Install new oil pan (upper) oil seal.

c.

Apply a continuous bead of liquid gasket (1) with the tube
presser (commercial service tool) to areas as shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.

CAUTION:

Attaching should be done within 5 minutes after coating.

E1BIA1047ZZ

E1BIA1048ZZ

Bead of liquid gasket diameter

φ

4.0 - 5.0 mm (0.157 - 0.197 in)

Distance from inside edge

: 7.5 - 9.5 mm (0.295 - 0.374 in)

E1BIA1049ZZ

EM-92

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

OIL PAN (UPPER)

d.

Tighten bolts in the numerical order as shown in the figure.

CAUTION:

Install avoiding misalignment of both oil pan gasket and O-
ring.
• The bolts are different according to the installation position.

CAUTION:

Take care to install correct size bolts for each position.

CAUTION:

Be sure to wipe off any excessive liquid gasket leaking to surface.

2.

Install rear oil seal. Refer to 

EM-87, "REAR OIL SEAL : Removal and Installation"

.

CAUTION:

• The installation of rear oil seal should be completed within 5 minutes after installing oil pan

(upper).

• Never touch oil seal lip.

3.

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

Inspection

INFOID:0000000010282249

INSPECTION AFTER INSTALLATION

1.

Check engine oil level and adjust engine oil. Refer to 

LU-8, "Inspection"

.

2.

Check for leakage of engine oil when engine is warmed.

3.

Stop engine and wait for 10 minutes.

4.

Check engine oil level again. Refer to 

LU-8, "Inspection"

.

: Engine front

: 25.0 N·m (2.6 kg-m, 18 ft-lb)

E1BIA1050ZZ

CYLINDER BLOCK

EM-93

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CYLINDER BLOCK

Exploded View

INFOID:0000000010282250

Refer to 

GI-4, "Components"

 for symbols in the figure.

Disassembly and Assembly

INFOID:0000000010282251

DISASSEMBLY

NOTE:
Explained here is how to disassemble with an engine stand supporting mating surface of transaxle. When
using different type of engine stand, note with difference in steps and etc.

1.

Top ring

2.

Second ring

3.

Oil ring

4.

Piston 5.

Snap 

ring

6.

Piston 

pin

7.

Snap ring

8.

Oil jet

9.

Connecting rod bearing

10. Connecting rod

11.

Thrust bearing

12.

Crankshaft sprocket

13. Crankshaft

14.

Crankshaft rear oil seal 

15.

Dowel pin

16. Flywheel

17.

Main bearing cap

18.

Main bearing

19. Main bearing beam

A.

Tightening must be done following the assembly procedure.
Refer to 

EM-93, "Disassembly and Assembly"

E1BIA1020GB

EM-94

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER BLOCK

1.

Remove cylinder head. Refer to 

EM-69, "Exploded View"

.

2.

Remove knock sensor bolt (1) and knock sensor (2).

CAUTION:

Carefully handle knock sensor avoiding shocks.

3.

Remove crankshaft position sensor (POS) (1).

CAUTION:

• Avoid impacts such as a dropping.
• Never disassemble.
• Keep it away from metal particles.
• Never place the sensor in a location where it is exposed to

magnetism.

4.

Remove oil pan (upper and lower). Refer to 

EM-89, "Exploded View"

.

5.

Remove main bearing beam with the following procedure.

a.

Loosen and remove bolts in several steps in reverse of the
numerical order as shown in the figure.

6.

Remove piston and connecting rod assembly with the following procedure:
• Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to

EM-102, "Inspection"

.

a.

Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center. 

b.

Remove connecting rod cap. 

c.

Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side. 

CAUTION:

• Be careful not to damage matching surface with connect-

ing rod cap.

• Be careful not to damage the cylinder wall and crankshaft

pin, resulting from an interference of the connecting rod
big end.

7.

Remove connecting rod bearings. 

CAUTION:

E1BIA1102ZZ

: Engine front

E1BIA1103ZZ

E1BIA1068ZZ

KBIA3365J

CYLINDER BLOCK

EM-95

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Identify installation positions, and store them without mixing them up.

8.

Remove piston rings form piston. 
• Before removing piston rings, check the piston ring side clearance. Refer to 

EM-102, "Inspection"

.

• Use a piston ring expander (commercial service tool) (A).

CAUTION:

• When removing piston rings, be careful not to damage

the piston.

• Be careful not to damage piston rings by expanding

them excessively.

9.

Remove piston from connecting rod.
• Remove snap ring (1) using a screwdriver (2) placed in the

piston groove (3).

• Release the piston pin.

CAUTION:

• Be careful not to damage the piston and connecting rod.
• Identify installation positions, and store them without

mixing them up.

10. Remove the main bearing cap in the following procedure.

• Measure crankshaft end play before loosening main bearing cap bolts. Refer to 

EM-102, "Inspection"

.

a.

Loosen and remove bolts in several steps in reverse of the
numerical order as shown in the figure.

b.

Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.

11. Remove crankshaft.

CAUTION:

• When setting crankshaft on a flat floor surface, use a block of wood to avoid interference

between signal plate and the floor surface.

12. Pull rear oil seal out from rear end of crankshaft.

13. Remove main bearings and thrust bearings from cylinder block and main bearing cap.

CAUTION:

Identify installation positions, and store them without mixing them up.

14. Remove oil jets.

CAUTION:

Identify installation positions, and store them without mixing them up.

ASSEMBLY

1.

Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.

PBIC3233J

E1BIA1104ZZ

: Engine front

JPBIA4203ZZ

EM-96

< UNIT DISASSEMBLY AND ASSEMBLY >

[HRA2DDT]

CYLINDER BLOCK

CAUTION:

Use a goggles to protect your eye.

2.

Install oil jets.

3.

Install main bearings and thrust bearings with the following procedure:

a.

Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block.

b.

Install thrust bearings to the both sides of the No. 3 journal hous-
ing (B) on cylinder block.

• Install thrust bearings with the oil groove (A) facing crankshaft

arm (outside). 

c.

Install the main bearings (1) paying attention to the direction.
• Install the one with oil holes (A) onto cylinder block and the

one without oil holes onto main bearing cap.

• Before installing main bearings, apply new engine oil to the

bearing surface (inside). Do not apply engine oil to the back
surface, but thoroughly clean it.

• Ensure the oil holes on cylinder block and those on the corre-

sponding bearing are aligned.

• Install the main bearing in the position as shown in the figure.

NOTE:
Install the main bearing in the center position with the following
dimension. For service operation, the center position can be
checked visually.

CAUTION:

Dimension L1 of journal No. 3 is the distance from the housing base end surface (bulk) (it is not
the distance from the thrust bearing mounting end surface).

4.

Install crankshaft to cylinder block.

: 10.0 N·m (1.0 kg-m, 7 ft-lb)

: Engine front

PBIC3258J

PBIC3746E

1

: Cylinder block

2

: Main bearing (upper)

3

: Main bearing (lower)

4

: Main bearing cap

: Engine front 

PBIC3747E

Journal position

No. 1

No. 2

No. 3

No. 4

No. 5

L1 [Unit: mm (in)]

1.65 - 2.05 

1.25 - 1.65

2.30 - 2.70

1.25 - 1.65

1.60 - 2.00

(0.064 - 0.080)

(0.049 - 0.064)

(0.090 - 0.106)

(0.049 - 0.064)

(0.062 - 0.078)

L2 [Unit: mm (in)]

1.30 - 1.70

1.30 - 1.70

2.30 -2.70

1.30 - 1.70

1.30 - 1.70

(0.051 - 0.066)

(0.051 - 0.066)

(0.090 - 0.106)

(0.051 - 0.066)

(0.051 - 0.066)

 

 

 

 

 

 

 

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