Nissan Murano Z50 (2004 year). Manual - part 119

ENGINE ASSEMBLY

EM-107

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Preparation

1.

Release fuel pressure. Refer to 

EC-45, "FUEL PRESSURE RELEASE"

 .

2.

Drain engine coolant. Refer to 

CO-9, "Changing Engine Coolant"

 .

CAUTION:

●

Perform this step when engine is cold.

●

Do not spill engine coolant on drive belts.

3.

Remove the following parts:

●

Engine cover; Refer to 

EM-16, "INTAKE MANIFOLD COLLECTOR"

 .

●

Hood assembly; Refer to 

BL-12, "HOOD"

 .

●

Front road wheel and tires

●

Undercover and splash guards (RH and LH)

●

Air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to 

EM-

14, "AIR CLEANER AND AIR DUCT"

 .

●

Battery, battery tray and battery tray bracket; Refer to 

SC-4, "BATTERY"

 .

●

Drive belts; Refer to 

EM-11, "DRIVE BELTS"

 .

●

Radiator, reservoir tank of radiator, and system hoses. Refer to 

CO-13, "RADIATOR"

 .

●

Front wiper arm; Refer to 

WW-4, "FRONT WIPER AND WASHER SYSTEM"

 .

●

Cowl top cover; Refer to 

EI-21, "COWL TOP"

 .

4.

Disconnect engine room harness at the ECM side.

CAUTION:

To keep clean harness connector and avoid damage and foreign materials, cover them completely
with plastic bags or something similar.

Engine Room

1.

Disconnect heater hoses. Refer to 

CO-29, "WATER OUTLET AND WATER PIPING"

 .

●

Install plug to avoid leakage of engine coolant.

2.

Remove EVAP hose. Refer to 

EM-16, "INTAKE MANIFOLD COLLECTOR"

 .

3.

Disconnect fuel feed hose (with fuel damper) quick connector at centralized under-floor piping side. Refer
to 

EM-40, "FUEL INJECTOR AND FUEL TUBE"

 .

●

Install plug to avoid leakage of fuel.

4.

Disconnect transaxle shift control cable at transaxle side. Refer to 

CVT-207, "SHIFT CONTROL SYS-

TEM"

 .

5.

Disconnect brake booster vacuum hose at engine side. Refer to 

EM-16, "INTAKE MANIFOLD COLLEC-

TOR"

 .

6.

Remove alternator. Refer to 

SC-17, "CHARGING SYSTEM"

 .

7.

Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to  

ATC-131,

"Components"

 .

8.

Disconnect suction hoses of power steering oil pump at reservoir tank side. Refer to 

PS-34, "HYDRAULIC

LINE"

 .

●

Install plug to avoid leakage of power steering fluid.

Vehicle Underbody

1.

Remove front drive shafts (right and left sides). Refer to 

FAX-7, "FRONT DRIVE SHAFT"

 .

2.

Remove front exhaust tube. Refer to 

EX-3, "EXHAUST SYSTEM"

 .

3.

Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to 

PS-14, "POWER STEERING GEAR AND LINKAGE"

 .

4.

Disconnect front stabilizer connecting rod. Refer to 

FSU-14, "STABILIZER BAR"

 .

5.

Remove propeller shaft (AWD models). Refer to 

PR-4, "REAR PROPELLER SHAFT"

 .

6.

Disconnect power steering piping at a point between vehicle and engine. Refer to 

PS-34, "HYDRAULIC

LINE"

 .

●

Install plug to avoid leakage of power steering fluid.

7.

Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to 

EM-28, "OIL PAN AND OIL STRAINER"

 and 

CVT-224, "TRANSAXLE ASSEMBLY"

 .

EM-108

ENGINE ASSEMBLY

Revision: 2004 November

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8.

Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to 

CVT-224, "TRAN-

SAXLE ASSEMBLY"

 .

9.

Remove crankshaft position sensor (POS).

CAUTION:

●

Handle carefully to avoid dropping and shocks.

●

Do not disassemble.

●

Do not allow metal powder to adhere to magnetic part at sensor tip.

●

Do not place sensors in a location where they are exposed to magnetism.

Removal Work

1.

Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member.

CAUTION:

Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.

2.

Remove RH engine mounting insulator and RH engine mounting bracket.

3.

Remove mounting bolt between transverse link and front suspension member with power tool.

4.

Remove front suspension member mounting nuts and bolts. Refer to 

FSU-5, "FRONT SUSPENSION

ASSEMBLY"

 .

5.

Carefully lower engine, transaxle, transfer (AWD models) and front suspension member assembly. When
performing work, observe the following caution.

CAUTION:

●

Confirm there is no interference with vehicle.

●

Make sure all connection points have been disconnected.

●

Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support vehicle
at rear jacking point(s) to prevent it from falling it off the lift.

Separation Work

1.

Install engine slingers into front of cylinder head (right bank) and
rear of cylinder head (left bank).

PBIC1190E

PBIC2483E

ENGINE ASSEMBLY

EM-109

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2.

Remove power steering oil pump, power steering piping and power steering bracket from engine, tran-
saxle and transfer (AWD models) assembly. Refer to 

PS-34, "HYDRAULIC LINE"

 .

3.

Remove starter motor. Refer to 

SC-9, "STARTING SYSTEM"

 .

4.

Disconnect harness connector of front engine mounting insulator and rear engine mounting insulator.

5.

Lift with hoist and separate engine, transaxle and transfer (AWD models) assembly from suspension
member.

CAUTION:

●

Before and during this lifting, always check if any harnesses are left connected.

●

Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.

6.

Remove each engine mounting insulator and each engine mounting bracket from engine, transaxle and
front suspension member.

7.

Separate engine, transaxle and transfer (AWD models) assembly. Refer to 

CVT-224, "TRANSAXLE

ASSEMBLY"

 .

INSTALLATION

Note the following, and install in the reverse order of removal.

●

Do not allow engine mounting insulator to be damage and careful no oil gets on it.

●

For a path with a specified installation orientation, refer to component figure in 

EM-105, "Removal and

Installation"

 .

●

Make sure all mounting insulators are seated properly, then tighten mounting nuts and bolts.

INSPECTION AFTER INSTALLATION

●

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

●

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
leakage 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 make sure there is no leakage of engine coolant, engine oil, working fluid,
fuel and exhaust gases.

●

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

●

After cooling down engine, again check levels of engine coolant, engine oil and working fluid. Refill to the
specified level, if necessary.

Summary of the inspection items:

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Working fluid

Level

Leakage

Level

Fuel

—

Leakage

—

Exhaust gases

—

Leakage

—

EM-110

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

CYLINDER BLOCK

PFP:11010

Disassembly and Assembly

ABS00A3T

PBIC2683E

CYLINDER BLOCK

EM-111

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DISASSEMBLY

1.

Remove engine assembly from vehicle, and separate front suspension member, transaxle and transfer
(AWD models) assembly from engine. Refer to 

EM-105, "ENGINE ASSEMBLY"

 .

2.

Remove exhaust manifolds (right and left banks). Refer to 

EM-23, "EXHAUST MANIFOLD AND THREE

WAY CATALYST"

 .

3.

Remove oil cooler, water pipes and water hoses. Refer to 

LU-10, "OIL COOLER"

 .

●

When removing water drain plug, engine coolant remaining in the engine is drained. Use tray to collect
it.

1.

Reinforcement plate

2.

Drive plate

3.

Rear oil seal retainer

4.

Knock sensor

5.

Cylinder block

6.

Thrust bearing (upper)

7.

Main bearing (upper)

8.

Crankshaft

9.

Key

10. Thrust bearing (lower)

11. Main bearing (lower)

12. Main bearing cap

13. Main bearing cap bolt

14. Main bearing beam

15. Connecting rod bolt

16. Connecting rod bearing cap

17. Connecting rod bearing

18. Connecting rod

19. Snap ring

20. Piston pin

21. Piston

22. Oil ring

23. Second ring

24. Top ring

25. Pilot converter

26. Oil jet

1.

Cylinder block

2.

Gasket

3.

Cylinder block heater

4.

Connector protector cap

PBIC2684E

EM-112

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

4.

Install engine sub-attachment with engine stand shaft [SST] to
right side of cylinder block.

●

Use spacer to engine front side.

5.

Lift engine, and mount it onto engine stand [SST].

●

A widely use engine stand can be used.

CAUTION:

Use engine stand that has a load capacity [approximately
220 kg (441 lb) or more] large enough for supporting the
engine weight.

NOTE:
This example is engine stand for holding at transaxle mount-
ing side with drive plate removed. 

6.

Drain engine oil. Refer to 

LU-8, "Changing Engine Oil"

 .

PBIC0920E

PBIC2685E

PBIC0085E

CYLINDER BLOCK

EM-113

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7.

Drain engine coolant by removing water drain plug “A”, “B” and
connector bolt “D” from cylinder block as shown in the figure.

NOTE:
For Canada, “A” in the figure is not water drain plug but block
heater.

8.

Remove drive plate. Fix crankshaft pulley with pulley holder [SST: KV10109300 (

—

)], and remove

mounting bolts.

●

Loosen mounting bolts in diagonal order.

CAUTION:

●

Do not disassemble drive plate.

●

Never place drive plate with signal plate facing down.

●

When handling signal plate, take care not to damage or
scratch it. 

●

Handle signal plate in a manner that prevents it from
becoming magnetized.

9.

Remove cylinder head. Refer to 

EM-93, "CYLINDER HEAD"

 .

10. Remove knock sensor.

CAUTION:

Carefully handle sensor avoiding shocks.

11. Remove pilot converter using pilot bushing puller [SST] as nec-

essary.

12. Remove rear oil seal retainer.

●

Remove by inserting screwdriver between main bearing cap and rear oil seal retainer.

PBIC2487E

SEM760G

SEM005G

EM-114

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

CAUTION:

If rear oil seal retainer is removed, replace it with new one.

NOTE:
Regard both rear oil seal and retainer as an assembly.

13. 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-127, "CONNECTING ROD SIDE CLEARANCE"

 .

a.

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

b.

Remove connecting rod bearing cap.

c.

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

CAUTION:

Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.

14. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.

CAUTION:

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

15. Remove piston rings form piston. 

●

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

EM-128, "PISTON RING

SIDE CLEARANCE"

 .

●

Use piston ring expander (commercial service tool).

CAUTION:

●

When removing piston rings, be careful not to damage
piston.

●

Be careful not to damage piston rings by expanding them
excessively.

16. Remove piston from connecting rod as follows: 

a.

Using snap ring pliers, remove snap rings.

EMQ0191D

PBIC0087E

PBIC1638E

CYLINDER BLOCK

EM-115

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b.

Heat piston to 60 to 70

°

C (140 to 158

°

F) with industrial use drier

or equivalent.

c.

Push out piston pin with stick of outer diameter approximately 20
mm (0.79 in).

17. Remove main bearing cap bolts.

NOTE:
Use TORX socket (size E14).

●

Before loosening main bearing cap bolts, measure the crankshaft end play. Refer to 

EM-127, "CRANK-

SHAFT END PLAY"

 .

●

Loosen main bearing cap bolts in the reverse order shown in
the figure in several different steps.

18. Remove main bearing beam.

PBIC1639E

PBIC0262E

PBIC1800E

PBIC0881E

EM-116

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

19. Remove main bearing caps.

●

Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.

20. Remove crankshaft.

21. Remove main bearings and thrust bearings from cylinder block and main bearing caps.

CAUTION:

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

22. Remove oil jet.

ASSEMBLY

1.

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

CAUTION:

Use a goggles to protect your eye.

2.

Install each plug to cylinder block as shown in the figure.

●

Apply sealant to the thread of water drain plug “A”.
Use Anaerobic Liquid Gasket or equivalent. Refer to 

GI-

47, "RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS"

 .

NOTE:
For Canada, “A” in the figure is not water drain plug but block
heater. Refer to 

EM-110, "Disassembly and Assembly"

 .

●

Apply sealant to the thread of water drain plug “B” and con-
nector bolt “D”.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"

 .

●

Apply sealant to the thread of plug “C”.
Use Genuine High Strength Locking Sealant or equiva-
lent. Refer to 

GI-47, "RECOMMENDED CHEMICAL PROD-

UCTS AND SEALANTS"

 .

●

Replace washers with new one.

●

Tighten each plug and connector bolt as specified below.

EMQ0195D

PBIC2487E

Part

Washer

Tightening torque

A

Yes

62.0 N·m (6.3 kg-m, 46 ft-lb)

B

No

9.8 N·m (1.0 kg-m, 87 in-lb)

C

Yes

62.0 N·m (6.3 kg-m, 46 ft-lb)

D

No

39.2 N·m (4.0 kg-m, 29 ft-lb)

CYLINDER BLOCK

EM-117

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3.

Install oil jet.

●

Insert oil jet dowel pin into cylinder block dowel pin hole, and
tighten mounting bolts.

4.

Install main bearings and thrust bearings as follow:

a.

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

b.

Install thrust bearings to the both sides of the No. 3 journal hous-
ing on cylinder block and main bearing cap.

●

Install thrust bearings with the oil groove facing crankshaft
arm (outside). 

●

Install thrust bearing with a projection on one end on cylinder
block, and thrust bearing with a projection at center on main
bearing cap. Align each projection with mating notch.

c.

Install main bearings paying attention to the direction.

●

Main bearing with oil hole and groove goes on cylinder block.
The one without them goes on main bearing cap.

●

Before installing main bearings, apply engine oil to the bear-
ing surface (inside). Do not apply engine oil to the back sur-
face, but thoroughly clean it.

●

When installing, align main bearing stopper protrusion to cut-
out of cylinder block and main bearing caps.

●

Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.

5.

Install crankshaft to cylinder block.

●

While turning crankshaft by hand, check that it turns smoothly. 

6.

Install main bearing caps.

●

Main bearing caps are identified by identification mark cast on
them. For installation, face front mark to front side.

NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.

7.

Install main bearing beam.

●

Install main bearing beam with front mark facing downward (oil pan side).

PBIC0898E

PBIC0807E

PBIC2489E

SEM456G

EM-118

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

●

Install main bearing beam with front mark facing front of
engine.

8.

Inspect the outer diameter of main bearing cap bolt. Refer to 

EM-135, "MAIN BEARING CAP BOLT

OUTER DIAMETER"

 .

9.

Install main bearing cap bolts in numerical order as shown in the
figure as follows:

a.

Apply new engine oil to threads and seat surfaces of main bear-
ing cap bolts.

b.

Tighten main bearing cap bolts in several different steps.

c.

Turn all main bearing cap bolts 90 degrees clockwise (Angle
tightening).

CAUTION:

Use angle wrench [SST: KV10112100 (BT8653-A)] to check
tightening angle. Do not make judgment by visual inspec-
tion. 

●

After installing mounting bolts, make sure that crankshaft can
be rotated smoothly by hand.

●

Check the crankshaft end play. Refer to 

EM-127, "CRANK-

SHAFT END PLAY"

 .

10. Inspect the outer diameter of connecting rod bolt. Refer to 

EM-136, "CONNECTING ROD BOLT OUTER

DIAMETER"

 .

11. Install piston to connecting rod as follows:
a.

Using snap ring pliers, install new snap ring to the groove of piston rear side. 

●

Insert it fully into groove to install.

b.

Install piston to connecting rod.

●

Using industrial drier or similar tool, heat piston until piston pin can be pushed in by hand without
excess force [approx. 60 to 70

°

C (140 to 158

°

F)]. From the front to the rear, insert piston pin into piston

and connecting rod.

●

Assemble so that the front mark on the piston crown and the
cylinder number on connecting rod are positioned as shown in
the figure.

c.

Install new snap ring to the groove of the piston front side. 

●

Insert it fully into groove to install.

●

After installing, make sure that connecting rod moves
smoothly.

PBIC0881E

 : 35.3 N·m (3.6 kg-m, 26 ft-lb)

PBIC1800E

PBIC0921E

SEM838F

CYLINDER BLOCK

EM-119

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12. Using piston ring expander (commercial service tool), install pis-

ton rings.

CAUTION:

●

When installing piston rings, be careful not to damage
piston.

●

Be careful not to damage piston rings by expending them
excessively.

●

If there is stamped mark on ring, mount it with marked side
up.

NOTE:
If there is no stamp on ring, no specific orientation is required
for installation.

●

Position each ring with the gap as shown in the figure refer-
ring to the piston front mark.

●

Check the piston rings side clearance. Refer to 

EM-128, "PISTON RING SIDE CLEARANCE"

 .

13. Install connecting rod bearings to connecting rod and connecting rod bearing cap.

●

Before installing connecting rod bearings, apply engine oil to the bearing surface (inside). Do not apply
engine oil to the back surface, but thoroughly clean it. 

●

When installing, align connecting rod bearing stopper protru-
sion with cutout of connecting rod and connecting rod bearing
cap to install. 

●

Ensure the oil hole on connecting rod and that on the corre-
sponding bearing are aligned. 

14. Install piston and connecting rod assembly to crankshaft. 

●

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

●

Apply engine oil sufficiently to the cylinder bore, piston and crankshaft pin journal.

●

Match the cylinder position with the cylinder number on connecting rod to install. 

●

Be sure that front mark on piston crown is facing front of engine.

PBIC0087E

Stamped mark:

Top ring

: —

Second ring

: R

SEM757G

PBIC0808E

PBIC2067E

EM-120

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

●

Using piston ring compressor [SST] or suitable tool, install
piston with the front mark on the piston crown facing the front
of engine.

CAUTION:

Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.

15. Install connecting rod bearing cap.

●

Match the stamped cylinder number marks on connecting rod
with those on connecting rod bearing cap to install.

●

Be sure that front mark on connecting rod bearing cap is fac-
ing front of engine.

16. Tighten connecting rod bolt as follows:
a.

Apply engine oil to the threads and seats of connecting rod bolts. 

b.

Tighten connecting rod bolts.

c.

Then tighten all connecting rod bolts 90 degrees clockwise
(Angle tightening).

CAUTION:

Always use angle wrench [SST: KV10112100 (BT8653-A)].
Avoid tightening based on visual check alone.

●

After tightening connecting rod bolts, make sure that crank-
shaft rotates smoothly.

●

Check the connecting rod side clearance. Refer to 

EM-127,

"CONNECTING ROD SIDE CLEARANCE"

 .

17. Install new rear oil seal retainer to cylinder block.

●

Apply new engine oil to the oil and dust seal lips.

●

Apply a continuous bead of liquid gasket with tube presser
[SST: WS39930000 (

—

)] to rear oil seal retainer as

shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"

 .

CAUTION:

●

Replace with a new parts.

●

Attaching should be done within 5 minutes after coating.

NOTE:
Regard both rear oil seal and retainer as an assembly.

SEM620

PBIC0809E

 : 19.6 N·m (2.0 kg-m, 14 ft-lb)

SEM953E

PBIC2661E

CYLINDER BLOCK

EM-121

C

D

E

F

G

H

I

J

K

L

M

A

EM

Revision: 2004 November

2004 Murano

18. Install pilot converter.

●

With drift [outer diameter: approx. 33 mm (1.30 in)], press-fit
as far as it will go.

●

Press-fit pilot converter with its chamfer facing crankshaft as
shown in the figure.

19. Install knock sensor.

●

Install knock sensor so that connector faces front of engine.

●

After installing knock sensor, connect harness connector, and
lay it out to rear of engine.

CAUTION:

●

Do not tighten mounting bolts while holding connector.   

●

If any impact by dropping is applied to knock sensor,
replace it with new one.

NOTE:

●

Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of knock sensor. 

●

Make sure that knock sensor does not interfere with other parts.

20. Note the following, assemble in the reverse order of disassembly after this step.

Drive plate

●

Install drive plate and reinforcement plate as shown in the fig-
ure.

●

Holding ring gear with pulley holder [SST: KV10109300 (

—

)].

●

Tighten mounting bolts crosswise over several times.

PBIC0899E

SEM537E

PBIC0810E

PBIC0910E

EM-122

CYLINDER BLOCK

Revision: 2004 November

2004 Murano

How to Select Piston and Bearing

ABS00A3U

DESCRIPTION

 *: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is available.) The
information at the shipment from the plant is described as a reference.

●

The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.

●

For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.

●

For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.

HOW TO SELECT PISTON
When New Cylinder Block is Used

Check the cylinder bore grade (“1”, “2” or “3”) on rear side of cylinder
block, and select piston of the same grade.

NOTE:
Piston is available with piston pin as a set for the service part. (Only
“0” grade piston pin is available.)

When Cylinder Block is Reused

1.

Measure the cylinder bore inner diameter. Refer to 

EM-131, "Cylinder Bore Inner Diameter"

 .

2.

Determine the bore grade by comparing the measurement with
the values under the cylinder bore inner diameter of the “Piston
Selection Table”.

3.

Select piston of the same grade.

Selection points

Selection parts

Selection items

Selection methods

Between cylinder block and 
crankshaft

Main bearing

Main bearing grade
(bearing thickness)

Determined by match of cylin-
der block bearing housing 
grade (inner diameter of hous-
ing) and crankshaft journal 
grade (outer diameter of jour-
nal)

Between crankshaft and con-
necting rod

Connecting rod bearing

Connecting rod bearing grade 
(bearing thickness)

Combining service grades for 
connecting rod big end diame-
ter and crankshaft pin outer 
diameter determine connecting 
rod bearing selection.

Between cylinder block and pis-
ton

Piston and piston pin assembly
(Piston is available together 
with piston pin as assembly.)

Piston grade
(piston skirt diameter)

Piston grade = cylinder bore 
grade (inner diameter of bore)

Between piston and connecting 
rod*

—

—

—

SEM756G

PBIC0812E