Nissan Juke Service and Repair Manual : Camshaft valve clearance
Inspection and Adjustment
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-53, "Exploded View".
2. Measure the valve clearance with the following procedure: a. Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front cover.
C : White paint mark (Not use for service)
• At the same time, check that both intake and exhaust cam
noses of No. 1 cylinder face inside (
) as shown in the figure.
1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
• If they do not face inside, rotate crankshaft pulley once more (360 degrees) and align as shown in the figure.
b. Use a feeler gauge, measure the clearance between valve lifter and camshaft.
Valve clearance : Refer to EM-130, "Camshaft".
• By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below [locations
indicated with black arrow ( ) in
the figure] with a feeler
gauge.
A : Exhaust side
B : No. 1 cylinder
C : No. 2 cylinder
D : No. 3 cylinder
E : No. 4 cylinder
F : Intake side
: Engine front
c. Set No. 4 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (1) one revolution (360 degrees) and align TDC mark (no paint) (B) to timing indicator (A) on front cover.
C : White paint mark (Not use for service)
• By referring to the figure, measure the valve clearance at locations
marked “×” as shown in the table below [locations indicated
with black arrow ( ) in the figure]
with a feeler gauge.
A : Exhaust side
B : No. 1 cylinder
C : No. 2 cylinder
D : No. 3 cylinder
E : No. 4 cylinder
F : Intake side
: Engine front
3. If out of standard, perform adjustment. Refer to “ADJUSTMENT”.
ADJUSTMENT
ADJUSTMENT • Perform adjustment depending on selected head thickness of valve lifter.
1. Remove camshaft. Refer to EM-78, "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.
Valve lifter thickness calculation: t = t1 + (C1 – C2) t = Valve lifter thickness to be replaced t1 = Removed valve lifter thickness C1 = Measured valve clearance C2 = Standard valve clearance: Intake : 0.30 mm (0.012 in) Exhaust : 0.33 mm (0.013 in)
• Thickness of new valve lifter (B) can be identified by stamp mark (A) 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: 26 sizes range 3.00 to 3.50 mm (0.1181 to
0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to EM-130, "Camshaft".
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-78, "Exploded View".
7. Install timing chain and related parts. Refer to EM-67, "Exploded View".
8. Manually rotate crankshaft pulley a few rotations.
9. Check that the valve clearances is within the standard. 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.
Basic inspection
...
Compression pressure
Inspection
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-551, "Work Procedure".
3. Remove ignition coil and spark plug from each cylinder. Refer to ...
Other materials:
Back door opener switch
Component Function Check
1.CHECK FUNCTION
1. Select “TRUNK” of “BCM” using CONSULT-III.
2. Select “TR/BD OPEN SW” in “DATA MONITOR” mode.
3. Check that the function operates normally according to the following
conditions.
Is the inspection result normal?
YES >> Back door opener switc ...
Exhaust valve timing control
Exhaust valve timing control : System Diagram
Exhaust valve timing control: System Description
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
This mechanism hydraulically controls cam phases continuously with the fixed
operating angle of the exhaust
valve.
The ECM receives signals such ...
CVT fluid
Inspection
CHECKING CVT FLUID
The fluid level should be checked with the fluid warmed up to 50 to 80°C (122
to 176°F). The fluid level check
procedure is as follows:
1. Check for fluid leakage.
2. With the engine warmed up, drive the vehicle in an urban area.
When ambient temperature is 20 ...