Nissan Versa Note. Manual - part 397

• Measure the inner diameter of main bearing housing using suitable tool.

• Measure the position shown [5 mm (0.20 in)] backward from main

bearing housing front side in the 2 directions as shown. The

smaller one is the measured value.

• If out of the standard, replace cylinder block and main bearing

caps assembly.

NOTE:

Main bearing caps cannot be replaced individually, because they are machined together with cylinder block.

PISTON TO CYLINDER BORE CLEARANCE

Outer diameter
(Standard)

: Refer to

EM-120, "Cylinder

Block"

JPBIA0218ZZ

Oil clearance
(Standard and Limit)

: Refer to

Limit :

Refer

JPBIA0224ZZ

(1)

: Cylinder block

(2)

: Main bearing cap

: Engine front

Standard :

PBIC4005E

CYLINDER BLOCK

EM-105

< UNIT DISASSEMBLY AND ASSEMBLY >

[HR16DE]

Cylinder Bore Inner Diameter

• Using a suitable tool, measure the cylinder bore for wear, out-of-

round and taper at six different points on each cylinder. [(A) and (B)

directions at (C), (D), and (E)] [(A) is in longitudinal direction of

engine]

NOTE:

When determining cylinder bore grade, measure the cylinder bore

(B) direction at (D) position.

• If the measured value exceeds the limit, or if there are scratches and/or seizure on the cylinder inner wall,

replace cylinder block.

NOTE:

Oversize piston is not available.

Piston Skirt Diameter

Measure the outer diameter of piston skirt using suitable tool (A).

Piston to Cylinder Bore Clearance

Calculate by piston skirt diameter and cylinder bore inner diameter

[direction (B), position (D)].

(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diame-

ter)

• If it exceeds the limit, replace piston and piston pin assembly and/or cylinder block. Refer to

EM-120, "Cylin-

der Block"

(f)

: 10 mm (0.39 in)

(g)

: 60 mm (2.36 in)

(h)

: 124 mm (4.88 in)

Standard:

Cylinder bore inner diameter

: Refer to

Limit:

Out-of-round [Difference between (A) and (B)]
Taper [Difference between (C) and (E)]

: Refer to

JPBIA2059ZZ

Standard :

PBIC3272J

(A)

: Direction A

(C)

: Position C

(E)

: Position E

(f)

: 10 mm (0.39 in)

(g)

: 60 mm (2.36 in)

(h)

: 124 mm (4.88 in)

Standard and Limit

: Refer to

EM-124, "Connecting Rod Bearing"

JPBIA2059ZZ

EM-106

< UNIT DISASSEMBLY AND ASSEMBLY >

[HR16DE]

CYLINDER BLOCK

CRANKSHAFT MAIN JOURNAL DIAMETER

• Measure the outer diameter of crankshaft main journals using suit-

able tool (A).

• If out of the standard, measure the main bearing oil clearance.

Then use undersize bearing. Refer to

EM-123, "Main Bearing"

CRANKSHAFT PIN JOURNAL DIAMETER

• Measure the outer diameter of crankshaft pin journal using suitable tool.

• If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing. Refer

OUT-OF-ROUND AND TAPER OF CRANKSHAFT

• Measure the dimensions at four different points as shown on each

main journal and pin journal using suitable tool.

• Out-of-round is indicated by the difference in dimensions between

(a) and (b) at (c) and (d).

• Taper is indicated by the difference in dimension between (c) and

(d) at (a) and (b).

• If the measured value exceeds the limit, correct or replace crankshaft.

• If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select

main bearing and/or connecting rod bearing. Refer to

EM-124, "Connecting Rod Bearing"

and/or

EM-123,

"Main Bearing"

CRANKSHAFT RUNOUT

• Place a V-block on a precise flat table to support the journals on both ends of the crankshaft.

• Place a suitable tool (A) straight up on the No. 3 journal.

• While rotating crankshaft, read the movement of the pointer on the

suitable tool. (Total indicator reading)

• If it exceeds the limit, replace crankshaft.

CONNECTING ROD BEARING OIL CLEARANCE

Method by Calculation

Standard :

PBIC3457J

Standard :

Limit:

Out-of-round [Difference between (a) and (b)]
Taper [Difference between (c) and (d)]

: Refer to

JPBIA0229ZZ

Standard and Limit

: Refer to

EM-120, "Cylinder

Block"

PBIC3458J

CYLINDER BLOCK

EM-107

< UNIT DISASSEMBLY AND ASSEMBLY >

[HR16DE]

• Install connecting rod bearings (2) to connecting rod (3) and con-

necting rod cap (1), and tighten connecting rod cap bolts to the

specified torque. Refer to

• Measure the inner diameter of connecting rod bearing using suit-

able tool.

(Bearing oil clearance) = (Connecting rod bearing inner diameter)

– (Crankshaft pin journal diameter)

• If clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end

diameter and crankshaft pin journal diameter to obtain specified bearing oil clearance. Refer to

EM-124,

"Connecting Rod Bearing"

Method of Using Plastigage

• Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.

• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil

holes.

• Install connecting rod bearings to connecting rod and cap, and tighten connecting rod cap bolts to the speci-

fied torque. Refer to

CAUTION:

Do not rotate crankshaft.

• Remove connecting rod cap and bearing, and using the scale (A)

on the plastigage bag, measure the plastigage width.

NOTE:

The procedure when the measured value exceeds the limit is

same as that described in the “Method by Calculation”.

MAIN BEARING OIL CLEARANCE

Method by Calculation

• Install main bearings (3) to cylinder block (1) and main bearing cap

(2), and tighten main bearing cap bolts to the specified torque.

Refer to

• Measure the inner diameter (B) of main bearing (3) using suitable

tool.

(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-

shaft main journal diameter)

• If clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and

crankshaft main journal diameter to obtain specified bearing oil clearance. Refer to

EM-123, "Main Bearing"

Method of Using Plastigage

• Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.

• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil

holes.

• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-

ified torque. Refer to