Nissan Almera Tino V10. Manual — part 877
EM-164
[YD]
CAMSHAFT
Camshaft Oil Clearance
Measure by using a micrometer.
Camshaft Bracket Inner Diameter
●
Install camshaft bracket and tighten bolts to the specified torque.
●
Measure inner diameter of camshaft bracket using an inside
micrometer.
Camshaft Oil Clearance Calculations
(Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal outer diameter)
●
If it exceeds the standard value, refer to the standard value of each unit, then replace the camshaft and/or
cylinder head.
NOTE:
As the camshaft bracket is manufactured with the cylinder head, it is impossible to replace only the camshaft
bracket.
Camshaft End Play
●
Set the dial gauge to the front end of the camshaft. Measure the
end play by moving the camshaft in the direction of the axle.
●
If end play exceeds the limit, replace camshaft and measure
camshaft end play again.
●
If end play still exceeds the limit after replacing camshaft,
replace cylinder head.
Camshaft journal outer diameter:
Standard:
No. 1
: 30.435 - 30.455 mm
(1.1982 - 1.1990 in)
No. 2, 3, 4, 5
: 23.935 - 23.955 mm
(0.9423 - 0.9431 in)
SEM012A
Camshaft bracket inner diameter:
Standard:
No. 1
: 30.500 - 30.521 mm
(1.2008 - 1.2016 in)
No. 2, 3, 4, 5
: 24.000 - 24.021 mm
(0.9449 - 0.9457 in)
JEM162G
Standard
: 0.045 - 0.086 mm (0.0018 - 0.0034 in)
Standard
: 0.070 - 0.148 mm (0.0028 - 0.0058 in)
Limit
: 0.24 mm (0.0094 in)
PBIC0366E
CAMSHAFT
EM-165
[YD]
C
D
E
F
G
H
I
J
K
L
M
A
EM
Camshaft Sprocket Runout
1.
Install sprocket on camshaft.
2.
Measure camshaft sprocket runout.
3.
If it exceeds the limit, replace camshaft sprocket.
Visual Inspection of Valve Lifter and Adjusting Shim
●
Check lifter side for any signs of wear or damage. Replace if
there are any abnormalities.
●
Check cam nose contact and sliding surfaces for wear and
scratches. Replace if there are any abnormalities.
Valve Lifter Outer Diameter
Measure the outer diameter of the valve lifter with a micrometer.
Valve Lifter Bore Diameter
Measure the bore diameter of the cylinder head valve lifter with an
inside micrometer.
Valve Lifter Clearance Calculations
(Clearance) = (Valve lifter bore diameter) – (Valve lifter outer diameter)
If it exceeds the standard value, refer to the outer diameter and bore diameter standard values and replace
valve lifter and/or cylinder head.
Runout (Total indicator reading):
: Less than 0.15 mm (0.0059 in)
JEM164G
SEM160D
Standard
: 29.960 - 29.975 mm (1.1795 - 1.1801 in)
SEM961E
Standard
: 30.000 - 30.021 mm (1.1811 - 1.1819 in)
PBIC0367E
Standard
: 0.025 - 0.061 mm (0.0010 - 0.0024 in)
EM-166
[YD]
CAMSHAFT
INSTALLATION
1.
Install the valve lifter and adjusting shim.
●
Make sure that these are installed in the same position as before the removal process.
2.
Install the camshaft.
●
Identify camshafts by the paint position and screw hole at the
rear end.
●
Install so that dowel pins are positioned in the directions
shown in the figure.
3.
Install camshaft brackets.
●
Install correctly, identifying brackets by the journal No. and
front mark on top surface.
4.
Tighten bolts in the order shown in the figure according to the
following procedure:
a.
Tighten to 1.96 N·m (0.2 kg-m, 17 in-lb).
●
Make sure camshaft thrusting parts (on rear side) securely fit
in their mating parts on the cylinder head.
b.
Tighten to 5.88 N·m (0.6 kg-m, 52 in-lb).
c.
Tighten to 12 to 13 N·m (1.2 to 1.4 kg-m, 9 to 10 ft-lb).
5.
Install camshaft sprockets.
●
Camshaft sprockets are commonly used for RH and LH.
●
Align camshaft sprocket and dowel pin on camshaft, and
install.
●
Holding the hexagonal part of camshaft with a wrench, tighten bolt securing camshaft sprocket.
6.
Before installing spill tube after installing secondary timing chain, check and adjust valve clearance. Refer
to
.
7.
Hereafter, install in the reverse order of removal.
Camshaft
RH
: Paint is at position A without screw hole.
Camshaft LH
: Paint is at position B with screw hole.
JEM173G
SEM516G
JEM175G
JEM160G
CAMSHAFT
EM-167
[YD]
C
D
E
F
G
H
I
J
K
L
M
A
EM
Valve Clearance
EBS00QFQ
INSPECTION
●
When the camshaft or parts in connection with valves are
removed or replaced, and a malfunction has occurred (poor
starting, idling, or other malfunction) due to the mis adjustment
of the valve clearance, inspect as follows.
●
Inspect and adjust when the engine is cool (at normal tempera-
ture).
●
Be careful of the intake and exhaust valve arrangement. The
valve arrangement is different from that in a normal engine.
NOTE:
The camshafts have, alternately, either an intake valve or an
exhaust valve. (Refer to illustration)
1.
Drain engine coolant. Refer to LC-40, “Changing Engine Coolant”.
2.
Remove air duct and air inlet pipe. Refer to
EM-119, "Removal and Installation"
.
3.
Remove rocker cover. Refer to
EM-160, "Removal and Installation"
.
4.
Remove vacuum pump. Refer to
EM-143, "Removal and Installation"
.
5.
Remove injection tube and fuel injector. Refer to
EM-147, "Removal and Installation"
.
6.
Remove secondary timing chain. Refer to
EM-171, "Removal and Installation"
Check valve clearance while engine is cold and not running.
7.
Set the No. 1 piston to TDC on its compression stroke.
●
Turn crankshaft pulley clockwise so that the knock pin on
camshaft LH faces straight above. (No position indicator, etc.
is provided on the crankshaft pulley.)
8.
Put an alignment mark with paint, etc. on the crankshaft pulley
and on the oil pump as an angle indicator.
9.
While referring to the figure, measure the valve clearance
marked in the table below.
●
The injection order is 1-3-4-2.
SBIA0178E
SBIA0179E
JEM177G
Measuring point
No. 1
No. 2
No. 3
No. 4
INT
EXH
INT
EXH
INT
EXH
INT
EXH
When the No. 1
cylinder is in the
TDC
X
X
X
X
SBIA0180E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст