Nissan Versa Sedan. Manual - part 369

CAMSHAFT VALVE CLEARANCE

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< BASIC INSPECTION >

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• Refer to the figure. Using a feeler gauge, measure the valve

clearances at locations marked “

×” in the table below [also

shown with black arrow (

)]. 

c. Set No. 4 cylinder at TDC of its compression stroke.

• Rotate crankshaft pulley (2) one revolution (360 degrees) and

align TDC mark (no paint) (A) to timing indicator (1) on front

cover. 

• Refer to the figure. Using a feeler gauge, measure the valve

clearances at locations marked “

×” in the table below [also

shown with black arrow (

)]. 

3. If out of the specifications, adjust as necessary. Refer to “ADJUSTMENT”.

ADJUSTMENT

NOTE:

Proper valve clearance is obtained by selecting the correct valve lifter head thickness.
1. Remove camshaft. Refer to 

EM-56, "Exploded View"

.

2. Remove valve lifters from the locations that are out of specification. 

(A)

: No. 1 cylinder

(B)

: No. 2 cylinder

(C)

: No. 3 cylinder

(D)

: No. 4 cylinder

JPBIA4117ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 1 cylinder at compression TDC

EXH

×

×

INT

×

×

(B)

: White paint mark (Not use for service)

PBIC3673E

(A)

: No. 1 cylinder

(B)

: No. 2 cylinder

(C)

: No. 3 cylinder

(D)

: No. 4 cylinder

JPBIA4118ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 4 cylinder at compression TDC

EXH

×

×

INT

×

×

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< BASIC INSPECTION >

[HR16DE]

CAMSHAFT VALVE CLEARANCE

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.

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

mark (A) on the under side of the lifter.

NOTE:

Available thickness of valve lifter: 26 sizes range 3.00 to 3.50

mm (0.1181 to 0.1378 in) in increments of 0.02 mm (0.0008 in)

when manufactured at factory. Refer to 

EM-118, "Camshaft"

.

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

5. Install the correct thickness valve lifter.
6. Install camshaft. Refer to 

EM-56, "Exploded View"

.

7. Install timing chain and related parts. Refer to 

EM-47, "Exploded View"

.

8. Manually rotate crankshaft pulley a few rotations. 
9. Check that valve clearances are within specification. Refer to “INSPECTION”.
10. Install remaining parts in the reverse order of removal.
11. Warm up the engine, and check for unusual noise and vibration.

PBIC3195J

Valve lifter thickness calculation:

t = t

1

 + (C

1 

– 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

: 0.33 mm (0.013 in)

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COMPRESSION PRESSURE

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COMPRESSION PRESSURE

Inspection

INFOID:0000000009266633

1. Warm up engine and then turn it off. 
2. Release fuel pressure. Refer to 

EC-133, "Work Procedure"

. 

3. Remove ignition coil and spark plug from each cylinder. Refer to 

EM-44, "Exploded View"

.

4. Connect engine tachometer (not required in use of CONSULT).
5. Install compression gauge (B) with an adapter (A) (commercial

service tool) onto spark plug hole.

• Use an adapter with a diameter (a) smaller than 20 mm (0.79

in). Otherwise, it may be caught by cylinder head during

removal.

6. With accelerator pedal fully depressed, turn ignition switch to START for cranking. When the gauge

pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each

cylinder.

CAUTION:

Always use a fully charged battery to obtain the specified engine speed.

• If the engine speed is out of the specified range, check the battery. Check the engine speed again with a

fully charged battery. 

• If some cylinders have low compression pressure, pour a small amount of engine oil into the spark plug

hole to recheck the compression.

- If the added engine oil improves the compression, the piston rings may be worn or damaged. Check the

piston rings and replace if necessary.

- If the compression pressure remains low despite the addition of engine oil, the valves may be malfunc-

tioning. Check the valves for damage. Replace the valve or valve seat as necessary.

• If two adjacent cylinders have respectively low compression pressure and their compression remains

low even after the addition of engine oil the head gasket may be leaking, or valves in adjacent cylinders

may be damaged. Inspect and repair as required.

• If the compression pressure is below the minimum value, check the valve clearances and parts associ-

ated with the combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head,

cylinder head gasket). After repairing, measure the compression pressure again.

7. After inspection is completed, install removed parts.
8. Start the engine, and ensure that the engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to 

EC-117, "Work Flow"

.

JPBIA4119ZZ

(a)

: Less than 20 mm (0.79 in)

JPBIA0171ZZ

Compression pressure : Refer to 

EM-117, "General Specification"

.

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< SYMPTOM DIAGNOSIS >

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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH troubleshooting Chart

INFOID:0000000009266634

1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.

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