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CYLINDER BLOCK
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c. Install the main bearings paying attention to the direction.
Install the one with oil holes onto the cylinder block and the
one without oil holes onto the main bearing cap.
Before installing the bearings, apply engine oil to the bearing
surface (inside). Do not apply oil to the back surface, but thor-
oughly clean it.
When installing, align the bearing stopper to the notch.
Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.
4. Install the pilot converter to the crankshaft using suitable tool.
5. Install the crankshaft to the cylinder block.
While turning the crankshaft by hand, make sure it turns
smoothly.
6. Install the main bearing caps.
Align the identification number to the journal position to install.
Install it with front mark (indicated by the arrow) facing front of
engine.
Tap the caps lightly to seat them on the installation position.
7. Follow the steps below to tighten each main bearing cap bolt.
a. Apply engine oil to threads and seating surfaces of bolts, and
tighten all bolts temporarily.
b. Measure tightening angle using Tool.
CAUTION:
Measure tightening angle using Tool. Do not measure visu-
ally.
PBIC0094E
EMP0569D
KBIA2533E
Main bearing cap bolts
in order of 1 to 10: 39.2 N·m (4.0 kg-m, 29 ft.-lb)
Main bearing cap sub
bolts in order of 11 to 20: 29.4 N·m (3.0 kg-m, 22 ft-lb)
PBIC0090E
Tool number : KV10112100 (BT-8653-A)
Main bearing cap bolts in
order of 1 to 10: 40°
WBIA0597E
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CYLINDER BLOCK
EM-79
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Revision: August 20072004 QX56Rotate crankshaft by hand after bolts are tightened. Check if it rotates smoothly.
Check the crankshaft side clearance. Refer to EM-89, "CRANKSHAFT END PLAY" .
8. Install rear oil seal to rear oil seal retainer.
CAUTION:
Do not damage or scratch outer circumference of oil seal.
Install new rear oil seal in the direction shown.
Tap until flattened with front edge of rear oil seal retainer
using suitable tool.
Fit the rear oil seal until it is level with the rear end surface of
rear oil seal retainer.
9. Install rear oil seal retainer.
Apply liquid gasket to rear oil seal retainer as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "
Recommended Chemical Products and Sealants".
Apply new engine oil on lips of rear oil seal. Do not touch.
10. Install the piston to the connecting rod.
a. Install the snap ring to the grooves of the piston rear side.
Insert it fully into groove to install.
b. Install the piston to the connecting rod.
Heat the piston until the piston pin can be pushed in by hand without excess force [approx. 60° to 70 C°
(140° to 158 °F)]. From the front to the rear, insert the piston pin into the piston and the connecting rod. Main bearing cap sub
bolts in order of 11 to 20: 30°
Side bolts in order of 21 to
30: 49 N·m (5.0 kg-m, 36 ft-lb)
SEM 71 5A
PBIC0097E
SBIA0391E
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EM-80Revision: August 2007
CYLINDER BLOCK
2004 QX56
Assemble so that the front mark on the piston crown and the
oil holes and the cylinder No. on the connecting rod are posi-
tioned as shown.
c. Install the snap ring to the grooves of the piston front side.
Insert it fully into groove to install.
After installing, make sure the connecting rod moves
smoothly.
11. Install the piston rings.
CAUTION:
Be careful not to damage the piston.
Position each ring with the gap as shown, referring to the pis-
ton front mark.
Install the second ring with the stamped surface facing
upward.
12. Install the connecting rod bearings to the connecting rod and the
connecting rod cap.
When installing the connecting rod bearings, apply engine oil
to the bearing surface (inside). Do not apply oil to the back
surface, but thoroughly clean it.
When installing, align the connecting rod bearing stopper pro-
trusion with the cutout of the connecting rod to install.
Check the oil holes on the connecting rod and those on the
corresponding bearing are aligned.
13. Install the piston and connecting rod assembly to the crankshaft
using Tool.
Position the crankshaft pin corresponding to the connecting
rod to be installed onto the bottom dead center.
Apply engine oil sufficiently to the cylinder bore, piston, and
crankshaft pin.
Match the cylinder position with the cylinder No. on the con-
necting rod to install.
Install the piston with the front mark on the piston crown fac-
ing the front of the engine.
CAUTION:
Be careful not to damage the crankshaft pin, resulting from an interference of the connecting
rod big end.
KBIA2534E
Stamped mark Second ring : 2N
PBIC0100E
PBIC0266E
Tool number : EM03470000 (J-8037)
KBIA2535E
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14. Install the connecting rod cap.
Match the stamped cylinder number marks on the connecting
rod with those on the cylinder cap to install.
15. Tighten the connecting rod bolts using Tool.
Apply engine oil to the threads and seats of the connecting
rod bolts.
After tightening the bolts, make sure that the crankshaft
rotates smoothly.
Check the connecting rod side clearance. Refer to EM-89, "CONNECTING ROD SIDE CLEARANCE"
16. Install knock sensor.
CAUTION:
If the knock sensor is dropped, replace it with a new one.
Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of the knock sen-
sor.
Install it with its connector facing the center of cylinder block
side.
Do not tighten the knock sensor bolts while holding the con-
nector.
Make sure that the knock sensor does not interfere with other
parts.
Position sub-harness as shown before installing intake mani-
fold.
17. Installation of the remaining components is in the reverse order of removal.
18. Remove engine assembly from engine stand.
KBIA2536E
Tool number : KV10112100 (BT-8653-A)
Connecting rod bolts
Step 1 : 19.6 N·m (1.5 kg-m, 11 ft-lb)
Step 2 : 90° clockwise
WBIA0586E
KBIA2493E
KBIA2549E
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EX-1
EXHAUST SYSTEM
B ENGINE
CONTENTS
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SECTION EX
A
EX
Revision: August 20072004 QX56 PREPARATION ........................................................... 2
Special Service Tool ................................................. 2
Commercial Service Tools ........................................ 2
EXHAUST SYSTEM ................................................... 3Checking Exhaust System ........................................ 3
Removal and Installation .......................................... 3
REMOVAL ............................................................. 4
INSTALLATION ..................................................... 4
INSPECTION AFTER INSTALLATION .................. 4
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EXHAUST SYSTEM
EX-3
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Revision: August 20072004 QX56
EXHAUST SYSTEMPFP:20100
Checking Exhaust SystemEBS00IKU
Check exhaust pipes, muffler and mounting for improper attachment, leaks, cracks, damage or deterioration.
If anything is found, repair or replace damaged parts.
Removal and InstallationEBS00IKV
Exhaust System
CAUTION:
Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat
resistance, corrosion resistance, and shape.
Perform the operation with the exhaust system fully cooled. The system will be hot just after the
engine stops.
Be careful not to cut your hand on the heat insulator edge.
SM A211 A
WBIA0416E
1. Tailpipe hanger bracket 2. Tailpipe 3. Gasket
4. Main muffler 5. Right front exhaust tube 6. Ring gasket
7. Heated oxygen sensor 2 (bank 2) 8. Heated oxygen sensor 2 (bank 1) 9. Left front exhaust tube
10. Center exhaust tube 11. Muffler hanger bracket front 12. Muffler hanger bracket rear
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EX-4Revision: August 2007
EXHAUST SYSTEM
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REMOVAL
Remove exhaust system components using power tool.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Always replace exhaust gaskets with new ones when reassembling.
Before installing a new heated oxygen sensor, clean and lube the exhaust tube threads using tool.
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; install a new one.
Do not over-torque the heated oxygen sensor. Doing so may damage the heated oxygen sensor,
resulting in the MIL coming on.
If any mounting insulator is badly deformed, repair or replace it. If deposits such as mud pile up on
the mounting insulators, clean and inspect them.
Temporarily tighten the mounting nuts on the exhaust manifold side and the mounting bolts on the
vehicle side. Check each part for interference with other components, and then tighten the nuts
and bolts to specification.
INSPECTION AFTER INSTALLATION
With the engine running, check exhaust tube joints for gas leakage and unusual noises.
Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue
stress. Improper installation could result in excessive noise and vibration. Tool number
A : — (J-43897-18)
B : — (J-43897-12)
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FAX-5
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WHEEL HUBPFP:43202
On-Vehicle Inspection and ServiceEDS001AJ
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION
Move wheel hub in the axial direction by hand. Make sure there
is no looseness of wheel bearing.
Rotate wheel hub and make sure there is no unusual noise or
other irregular conditions. If there are any irregular conditions,
replace wheel hub and bearing assembly.
Removal and InstallationEDS001AK
REMOVAL
1. Remove wheel and tire using power tool.
2. Remove engine under cover using power tool.
3. Without disassembling the hydraulic lines, remove caliper torque member bolts using power tool. Then
reposition brake caliper aside with wire. Refer to BR-22, "
Removal and Installation of Brake Caliper and
Disc Rotor" .
NOTE:
Do not press brake pedal while brake caliper is removed.Axial end play limit : 0.05 mm (0.002 in) or less
SM A57 1A
1. Disc rotor 2. Wheel hub and bearing assembly 3. Wheel stud
4. Splash guard 5. Steering knuckle
WDIA0043E
