Nissan Altima L32. Instruction — part 672
EM-224
< DISASSEMBLY AND ASSEMBLY >
[VQ35DE]
CYLINDER BLOCK
Connecting Rod Bearing (Big End)
1. Install the connecting rod bearing to the connecting rod and cap.
2. Install the connecting rod cap to the connecting rod. Tighten to specification. Refer to
3. Measure the inner diameter (C) of each connecting rod (big end)
as shown.
4. Measure the outer diameter (Dp) of each crankshaft pin journal.
5. Calculate the connecting rod bearing clearance.
Connecting rod bearing clearance = (C) - (Dp)
6. If the calculated clearance exceeds the specified limit, replace
the bearings.
7. If the clearance cannot be adjusted within the standard of any
bearing, grind the crankshaft journal and use undersized bear-
ings.
8. If the crankshaft is replaced with a new one, select the connect-
ing rod bearings according to the following table:
Connecting Rod Bearing Grade Number (Identification
Color)
These numbers are punched in either Arabic or Roman numer-
als.
Method B (Using Plastigage)
• Remove oil and dust on the 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 the connecting rod bearings to the connecting rod cap, and
tighten the connecting rod nuts to the specified torque.
CAUTION:
Never rotate the crankshaft.
• Remove the connecting rod cap and bearings, and using the scale
on the Plastigage bag, measure the Plastigage width.
NOTE:
The procedure when the measured value exceeds the repair limit
is same as that described in "Method A (Using Bore Gauge and Micrometer)".
DRIVE PLATE RUNOUT (CVT)
AEM027
Standard
: 0.020 - 0.045 mm (0.0008 - 0.0018 in)
Limit
: 0.070 mm (0.0028 in)
AEM034
Crankshaft pin journal grade
number
Connecting rod bearing grade
number
0
0 (black)
1
1 (brown)
2
2 (green)
SEM452G
SEM142
CYLINDER BLOCK
EM-225
< DISASSEMBLY AND ASSEMBLY >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
Runout (Total Indicator Reading):
CAUTION:
• The signal plate is built into the drive assembly. Be careful not
to damage the signal plate, particularly the teeth.
• Check the drive plate and signal plate for deformation or
cracks.
• Keep any magnetized objects away from the signal plate, particularly the teeth.
FLYWHEEL RUNOUT (M/T)
NOTE:
• This inspection is for double mass flywheel only.
• Do not disassemble the double mass flywheel.
Flywheel Deflection
• Measure the deflection of the flywheel contact surface to the clutch
with a dial gauge.
• Measure the runout at 210 mm (8.27 in) diameter.
• When measured value exceeds the limit, replace the flywheel with
a new one.
• Measure axial displacement at 250mm (9.84 in) diameter.
Movement Around in Rotation Direction
Check the movement amount with the following procedure:
1. Install a bolt to clutch cover mounting hole and place a torque wrench on the extended line of the flywheel
center line.
• Tighten the bolt at a force of 9.8 N·m (1 kg-m, 87 in-lb) to keep it from loosening.
2. Put a mating mark on the circumference of the two flywheel masses without applying any load (measure-
ment standard points).
3. Apply a force of 9.8 N·m (1 kg-m, 87 in-lb) in each direction, and mark the movement amount on the mass
on the transaxle side.
Drive plate (CVT)
torque converter sur-
face
: less than 0.35mm (.0138 in)
Ring gear
: less than 0.5mm (.0197 in)
SEM849EB
SEM760G
Limit
: 0.45 mm (0.0177 in) or less under no load
Limit
: 1.3mm (0.051 in) or less under 100 N
(22.48 lb) force
SBIA0287E
EM-226
< DISASSEMBLY AND ASSEMBLY >
[VQ35DE]
CYLINDER BLOCK
4. Measure dimensions of movement amounts A and B on the cir-
cumference of the flywheel on the transaxle side.
• When the measured value exceeds the standard, replace the
flywheel.
OIL JET
• Check nozzle for deformation and damage.
• Blow compressed air from nozzle, and check for clogs.
• If it is not satisfied, replace oil jet.
OIL JET RELIEF VALVE
• Using a clean plastic stick, press check valve in oil jet relief valve.
Make sure that valve moves smoothly with proper reaction force.
• If it is not satisfied, replace oil jet relief valve.
Dowel Pin Alignment
INFOID:0000000004505034
REMOVAL
1. Use Tool to lock the flywheel (M/T) or drive plate (CVT) before
removing the bolts.
CAUTION:
Do not damage the ring gear teeth, or the signal plate teeth
behind the ring gear, when setting Tool.
• CVT shown.
Flywheel movement
in rotation direction
: 20.22 mm (0.796 in) or
less
WBIA0224E
EMU0468D
Tool number
: KV10117700 (J-48716)
WBIA0270E
WBIA0506E
CYLINDER BLOCK
EM-227
< DISASSEMBLY AND ASSEMBLY >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
2. Remove the flywheel (M/T) or drive plate (CVT).
• Loosen the flywheel (M/T) or drive plate (CVT) bolts in a diag-
onal order.
CAUTION:
• Do not disassemble the flywheel (M/T) or drive plate
(CVT).
• Never place flywheel (M/T) or drive plate (CVT) with signal
plate facing down.
• When handling the signal plate, take care not to damage
or scratch it.
• Handle the signal plate in a manner that prevents it from
becoming magnetized.
INSTALLATION (M/T)
Installation is in the reverse order of removal.
• When installing the flywheel to the crankshaft, use the triangle
shaped match mark (A) as shown to correctly align the crankshaft
side dowel pin to the flywheel side dowel pin hole.
• Tighten the flywheel bolts in a diagonal pattern in two steps. Refer to
EM-206, "Disassembly and Assembly"
.
INSTALLATION (CVT)
Installation is in the reverse order of removal.
• When installing the drive plate to the crankshaft, use the triangle
shaped match mark (A) as shown to correctly align the crankshaft
side dowel pin to the drive plate side dowel pin hole.
• Install the drive plate and drive plate reinforcement plate in the
direction as shown.
• Tighten the drive plate bolts in a diagonal pattern in two steps.
EM-206, "Disassembly and Assembly"
SEM760G
LBIA0469E
LBIA0469E
PBIC0910E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст