Nissan Frontier D22. Manual - part 708

CYLINDER BLOCK

EM-139

[VG33E and VG33ER]

C

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EM

No. 1 Main Bearing Grade Number (Identification Color)

All Except No. 1 Main Bearing Grade Number (Identification Color)

Connecting Rod Bearing (Big End)

1.

Install the connecting rod bearing on the connecting rod big end and cap.

2.

Install the connecting rod cap to the connecting rod. Tighten the connecting rod cap bolts to specification.
Refer to 

EM-131, "Components"

 .

3.

Measure the inner diameter “C” of each connecting rod bearing
installed in the connecting rod big end.

4.

Measure the outer diameter “Dp” of each crankshaft connecting
rod journal.

5.

Calculate the connecting rod bearing clearance.

6.

If the connecting rod bearing clearance exceeds the limit, replace the connecting rod bearing.

7.

If the clearance cannot be adjusted within the standard of any bearing, grind the crankshaft journals and
use undersized bearings. Refer to 

EM-154, "Available Connecting Rod Bearing"

 .

Crankshaft journal grade 

number

Main journal grade number

3 or III

4 or IV

5 or V

6 or VI

3 or III

0 (Black)

1 (Brown)

2 (Green)

3 (Yellow)

4 or IV

1 (Brown)

2 (Green)

3 (Yellow)

4 (Blue)

5 or V

2 (Green)

3 (Yellow)

4 (Blue)

5 (Pink)

6 or VI

3 (Yellow)

4 (Blue)

5 (Pink)

6 (Purple)

Crankshaft journal grade num-

ber

Main journal grade number

0

1 or I

2 or II

0

0 (Black)

1 (Brown)

2 (Green)

1 or I

1 (Brown)

2 (Green)

3 (Yellow)

2 or II

2 (Green)

3 (Yellow)

4 (Blue)

AEM027

AEM034

Connecting rod bearing clearance ("C" – "Dp")

Standard

: 0.024 - 0.064 mm (0.0009 - 0.0025 in)

Limit

: 0.090 mm (0.0035 in)

EM-140

[VG33E and VG33ER]

CYLINDER BLOCK

Method B (Using Plastigage)

CAUTION:

●

Do not turn the crankshaft or the connecting rod while the
plastigage is being inserted.

●

When the bearing clearance exceeds the specified limit,
ensure that the proper bearing has been installed. Then if
an excessive bearing clearance exists, use a thicker main
bearing or undersized bearing so that the specified bearing
clearance is obtained.

CONNECTING ROD BUSHING CLEARANCE (SMALL END)

1.

Measure the inner diameter “C” of the connecting rod small end.

2.

Measure the outer diameter “Dp” of the piston pin bushing.

3.

Calculate the connecting rod bushing clearance.

If the clearance exceeds the limit, replace the connecting rod or
connecting rod bushing or the piston and rod set with pin.

REPLACEMENT OF CONNECTING ROD BUSHING (SMALL END)

1.

Drive the small end bushing into the rod until it is flush with end
surface of the rod.

CAUTION:

The oil hole in the bushing and the connecting rod must be
aligned when installed for proper lubrication.

2.

After driving in the small end bushing, ream the bushing so the clearance between the connecting rod
bushing and the piston pin is at specification.

FLYWHEEL/DRIVE PLATE RUNOUT

Measure the runout using a dial gauge as shown. The runout is mea-
sured with a dial gauge reading from a full rotation of the flywheel (M/
T only) or driveplate (A/T only).

CAUTION:

●

Do not damage the ring gear teeth.

●

Check the drive plate for deformation or cracks.

●

Do not allow any magnetic materials to contact the ring
gear teeth.

EM142

Connecting rod bushing clearance ("C" – "Dp")

Standard

: 0.005 - 0.017 mm (0.0002 - 0.0007 in)

Limit

: 0.023 mm (0.0009 in)

SEM673E

SEM062A

Clearance between connecting rod bushing and piston pin

: 0.005 - 0.017 mm 
(0.0002 - 0.0007 in)

Runout (total indicator reading)

Flywheel (M/T only)

: less than 0.15 mm (0.0059 in)

Drive plate (A/T only)

: less than 0.15 mm (0.0059 in)

AEM100

CYLINDER BLOCK

EM-141

[VG33E and VG33ER]

C

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EM

●

Do not resurface the flywheel (M/T). Replace as necessary.

Assembly

EBS00GU0

PISTON

1.

Install a new snap ring on one side of piston pin hole.

2.

Heat the piston to 60

° - 70°C (140° - 158°F) and assemble the

piston, piston pin, connecting rod and the new snap ring on the
other side.

●

Align the direction of the piston and connecting rod with the
marks as shown.

●

Numbers stamped on the connecting rod and cap correspond
to each cylinder, and should be aligned when assembled as
shown.

●

After assembly, check that the connecting rod swings
smoothly on the piston.

3.

Install and align the piston rings at 90

° degree angles as shown.

CRANKSHAFT

1.

Set the main bearings in their proper positions on the cylinder
block and main bearing caps.

●

Confirm that the correct main bearings are used. Refer to 

EM-

137, "BEARING CLEARANCE"

 .

●

Apply new engine oil to the bearing friction surfaces

2.

Install the crankshaft and main bearing caps and tighten the
bolts to the specified torque in numerical order as shown.

●

Prior to tightening the bearing cap bolts, place the bearing cap
in the proper position by shifting the crankshaft in the axial
direction.

●

Tighten the bearing cap bolts gradually in two or three steps.
Tighten the bearing cap bolts in numerical order as shown.

●

After securing the bearing cap bolts, check that the crankshaft
turns smoothly by hand.

●

Lubricate the threads and seat surfaces of the bolts with new
engine oil.

SEM400F

SEM160B

SEM208E

SEM550EA

EM-142

[VG33E and VG33ER]

CYLINDER BLOCK

3.

Measure the crankshaft end play as shown.

If beyond the limit, replace the bearing with a new one.

4.

Install the connecting rod bearings in the connecting rods and
connecting rod caps.

●

Confirm that the correct sized bearings are installed. Refer to

EM-139, "Connecting Rod Bearing (Big End)"

 .

●

Install the bearings so that the oil hole in the connecting rod
aligns with the oil hole in the bearing as shown.

5.

Install the pistons with connecting rods using Tool as shown.

a.

Install the piston assemblies into their corresponding cylinder
bores using Tool as shown.

●

Do not scratch the cylinder wall with the connecting rod.

●

Position the piston so the front mark on the piston head faces
toward the front of the engine.

b.

Install the connecting rod bearing caps and nuts.

●

Lubricate the connecting rod bearing cap stud threads and
nut seats with new engine oil.

●

Tighten the connecting rod bearing cap nuts to specification in
two steps. Only if an angle wrench is not available, tighten the
connecting rod bearing cap nuts to the torque specification in
step 2.

Crankshaft end play

Standard

: 0.050 - 0.170 mm (0.0020 - 0.0067 in)

Limit

: 0.30 mm (0.0118 in)

SEM158B

SEM159B

SEM620

Connecting rod bearing cap nut

Step 1

: 14 - 16 N·m (1.4 - 1.6 kg-m, 10 - 12 ft-lb).

Step 2

: 60

° - 65° degrees clockwise, or 38 - 44 N·m 

(3.9 - 4.5 kg-m, 28 - 33 ft-lb).

EM329