Nissan Cube. Instruction — part 413
EM-56
< REMOVAL AND INSTALLATION >
CAMSHAFT
b.
Apply liquid gasket (A) to camshaft bracket as shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.
c.
Tighten mounting bolts of camshaft brackets in the following
steps, in the order of 1 to 17 as shown in the figure.
• There are two types of mounting bolts. Refer to the following
for locating bolts.
i.
Tighten mounting bolts in numerical order.
ii.
Tighten mounting bolts in numerical order.
iii.
Tighten mounting bolts in numerical order.
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the mating surface of cylinder head.
4.
Install the camshaft sprocket (INT) to the camshaft (INT) with the following procedure.
B
: Plug hole inner wall
: Engine front
: Engine outside
PBIC3964E
: Engine front
M6 bolts [thread length: 57.5 mm (2.264 in)]
: 13, 14, and 15 in the figure
M6 bolts [thread length: 35.0 mm (1.378 in)]
: Except the above
: 1.96 N·m (0.20 kg-m, 17 in-lb)
: 5.88 N·m (0.60 kg-m, 52 in-lb)
: 9.5 N·m (0.97 kg-m, 84 in-lb)
PBIC3176J
CAMSHAFT
EM-57
< REMOVAL AND INSTALLATION >
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a.
When the camshaft sprocket (INT) (2) is removed, refer to the
paint mark (A) put according to step “3”. Securely align the
knock pin and the pin hole, and then install them.
b.
Tighten bolts in the following steps.
• Secure the hexagonal part of camshaft (INT) using wrench to tighten mounting bolt.
i.
Tighten camshaft (INT) mounting bolt.
ii.
Turn 67 degrees clockwise (angle tightening).
CAUTION:
Check the tightening angle by using an angle wrench [SST:
KV10112100 (BT8653-A)] (B) or protractor. Never judge by
visual inspection without an angle wrench.
5.
Install camshaft sprocket (EXH) (2).
• Secure the hexagonal part (A) of camshaft (EXH) using
wrench to tighten mounting bolt.
6.
Install timing chain and related parts. Refer to
.
7.
Inspect and adjust valve clearance. Refer to
EM-18, "Inspection and Adjustment"
8.
Install remaining parts in the reverse order of removal.
Inspection
INFOID:0000000009944950
INSPECTION AFTER REMOVAL
Camshaft Runout
1.
Put V-block on a precise flat table, and support No. 2 and 5 journal of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.
1
: Camshaft bracket
: Engine front
PBIC3992J
: 35.0 N·m (3.6 kg-m, 26 ft-lb)
1
: Camshaft sprocket (INT)
A
: Camshaft (INT) hexagonal part
PBIC3455J
1
: Camshaft sprocket (INT)
PBIC3454J
EM-58
< REMOVAL AND INSTALLATION >
CAMSHAFT
2.
Set dial indicator (A) vertically to No. 3 journal.
3.
Turn camshaft to one direction with hands, and measure the
camshaft runout on dial indicator. (Total indicator reading)
4.
If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1.
Measure the camshaft cam height with a micrometer (A).
2.
If it exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL OUTER DIAMETER
Measure the outer diameter of camshaft journal with a micrometer
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with specified torque. Refer to
EM-54, "Removal and Installation"
.
• Measure the inner diameter of camshaft bracket with a bore gauge
(A).
CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)
• If it exceeds the limit, replace camshaft or cylinder head, or both.
Standard and Limit
: Refer to
.
PBIC3177J
Standard and Limit
: Refer to
.
PBIC3178J
Standard :
Refer
PBIC3179J
B
: Measuring direction of inner diameter
Standard
: Refer to
.
PBIC3180J
Standard and Limit
: Refer to
.
CAMSHAFT
EM-59
< REMOVAL AND INSTALLATION >
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NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly.
Camshaft End Play
1.
Install camshaft in cylinder head. Refer to
EM-54, "Removal and Installation"
2.
Install dial indicator in thrust direction on front end of camshaft.
Read the end play of dial indicator (A) when camshaft is moved
forward/backward (in direction to axis).
• Measure the following parts if out of the standard.
- Dimension (A) for groove of cylinder head No. 1 journal
- Dimension (B) for camshaft flange
• Refer to the standards above, and then replace camshaft and/
or cylinder head.
Camshaft Sprocket Runout
1.
Put V-block on precise flat table, and support No. 2 and 5 journals of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.
2.
Measure the camshaft sprocket runout with a dial indicator (A).
(Total indicator reading)
• If it exceeds the limit, replace camshaft sprocket.
Valve Lifter
Check if surface of valve lifter has any wear or cracks.
• If anything above is found, replace valve lifter. Refer to
.
Standard and Limit
: Refer to
.
PBIC3181J
Standard
: 4.000 - 4.030 mm (0.1575 - 0.1587 in)
Standard
: 3.877 - 3.925 mm (0.1526 - 0.1545 in)
PBIC3183J
Limit
: Refer to
.
PBIC3182J
KBIA0182E
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