Page 855 of 2100

6A±45
ENGINE MECHANICAL (6VE1 3.5L)
Rear Oil Seal
Removal
1. Remove transmission assembly.
See Transmission section in this manual.
2. Remove flywheel.
3. Remove rear oil seal using a seal remover.
NOTE: Take care not to damage the crankshaft or oil seal
retainer when removing oil seal.
Installation
1. Apply engine oil to oil seal lip and install oil seal using
J-39201.
015RS017
2. Install flywheel.
Clean tapped holes in the crankshaft.
Remove oil on the crankshaft and flywheel
mounting surface.
Tighten fixing bolts to the specified torque.
NOTE: Do not reuse the bolts and do not apply oil or
thread lock to the bolts.
Torque : 54 N´m (40 lb ft)
015RS018
3. Install transmission.
See Transmission section in this manual.
CAUTION: W h e n assembling the engine and
transmission, confirm that dowels have been
mounted in the specified positions at the engine
side.
NOTE: Take care that dowel positions are different
between the manual transmission and the automatic
transmission.
Otherwise, the transmission may be damaged.
012RS009
Page 856 of 2100

6A±46
ENGINE MECHANICAL (6VE1 3.5L)
Engine Assembly
Removal
035R200001
1. Disconnect battery ground and positive cable.
2. Remove battery.
3. Make alignment mark on the engine hood and hinges
before removal in order to return the hood to original
position exactly.
4. Remove engine hood.
5. Drain radiator coolant.
6. Disconnect Ion sensing module harness connectors,
and manifold absolute pressure sensor harness
connectors from sensor on common chamber.
7. Disconnect throttle position sensor harness
connectors from throttle body.
8. Disconnect air duct with air cleaner cover.
9. Remove air cleaner assembly.
10. Disconnect canister vacuum hose.
11. Disconnect vacuum booster hose.
12. Disconnect three engine harness connectors.
13. Disconnect harness connector to transmission (left
front side of engine compartment), disconnect shift
on the fly harness connector from front side of front
axle and remove transmission harness bracket from
engine left side.
14. Disconnect ground cable between engine and frame.
15. Disconnect bonding cable connector on the back of
right dash panel.
16. Disconnect bonding cable terminal on the left bank.
17. Disconnect starter harness connector from starter.
18. Disconnect generator harness connector from
generator.
19. Disconnect coolant reserve tank hose from radiator.
20. Remove radiator upper and lower hoses.21. Remove upper fan shroud.
22. Remove cooling fan assembly four fixing nuts, then
the cooling fan assembly.
23. Move drive belt tensioner to loose side using wrench
then remove drive belt.
24. Remove power steering pump fixing bolts, then
power steering pump. Place the power steering pump
along with piping on the body side.
25. Remove air conditioning compressor fixing bolts from
bracket and place the compressor along with piping
on the body side.
26. Remove four O
2 sensor harness connectors (two
each bank) from exhaust front pipe.
27. Remove three exhaust pipe fixing nuts from each
bank.
28. Remove two exhaust pipe fixing nuts from each
exhaust pipe, then move exhaust pipe to rear side of
vehicle.
29. Remove flywheel dust covers.
30. Disconnect two heater hoses from engine.
31. Disconnect fuel hoses from right side of transmission.
CAUTION: Plug fuel pipes on engine side and fuel
hoses from fuel tank.
32. Remove transmission assembly. Refer to
Transmission section in this manual.
33. Support the engine by engine hoist.
34. Remove two left side engine mount fixing bolts from
engine mount on chassis side.
35. Remove two right side engine mount fixing bolts from
engine mount on chassis side.
36. Remove engine assembly.
Page 857 of 2100

6A±47
ENGINE MECHANICAL (6VE1 3.5L)
Installation
CAUTION: W h e n assembling the engine and
transmission, confirm that dowels have been
mounted in the specified positions at the engine
side.
NOTE: Take care that dowel positions are different
between the manual transmission and the automatic
transmission.
If the engine is assembled in the condition that the dowels
have not been mounted in the specified positions, the
transmission may be damaged.
012RS009
1. Install engine assembly. Tighten engine mount fixing
bolts to frame to the specified torque.
Torque: 41 N´m (30 lb ft)
2. Reconnect fuel hose to fuel pipe on engine.
3. Install transmission assembly. Refer to Transmission
section in this manual.
4. Reconnect two heater hoses to engine.
5. Install flywheel dust covers.
6. Install exhaust pipe and temporally tighten two (each
bank) rear exhaust flange nuts then tighten three stud
nuts (each bank) between exhaust manifold and
exhaust pipe, finally tighten rear side nuts to the
specified torque.
Torque:
Nuts: 43 N´m (32 lb ft)
Stud nuts: 67 N´m (49 lb ft)
150R200002
Legend
(1) Exhaust Front Pipe RH
(2) O
2 Sensor
150R200003
Legend
(1) O
2 Sensor
(2) Exhaust Front Pipe LH
7. Reconnect O2 sensor connector.
8. Install cooling fan assembly and tighten bolts/nuts to
the specified torque.
Torque : 22 N´m (16 lb ft) for fan pulley and fan
bracket.
Torque : 7.5 N´m (66.4 lb in) for fan and clutch
assembly.
Page 877 of 2100
6A±67
ENGINE MECHANICAL (6VE1 3.5L)
Crankshaft
Crankshaft and Associated Parts
013RW009
Legend
(1) Cylinder Head Assembly
(2) Crankcase with Oil Pan
(3) Oil Pipe and O-ring
(4) Oil Strainer and O-ring
(5) Oil Pump Assembly
(6) Cylinder Block Side Bolts
(7) Oil Gallery(8) Piston and Connecting Rod Assembly
(9) Flywheel
(10) Rear Oil Seal Retainer and Oil Seal
(11) Main Bearing Cap
(12) Crankshaft
(13) Main Bearing Cap Fixing Bolts
(14) Oil Gallery Fixing Bolts
Disassembly
1. Remove cylinder head assembly (1). Refer to
ªCylinder Headº in this manual.
2. Remove crankcase with oil pan (2). Refer to ªOil Pan
and Crankcaseº in this manual.CAUTION: Take care not to damage or deform the
sealing flange surface of crankcase.
3. Remove oil pipe and O-ring (3).
4. Remove oil strainer and O-ring (4).
5. Remove oil pump assembly (5).
6. Remove crankcase side bolts (6).
Page 878 of 2100

6A±68
ENGINE MECHANICAL (6VE1 3.5L)
7. Remove oil gallery (7).
8. Remove piston and connecting rod assembly (8).
Refer to ªPiston, Piston Ring and Connecting Rodº in
this manual.
9. Remove flywheel (9).
10. Remove rear oil seal retainer (10).
11. Remove main bearing cap (11).
12. Remove crankshaft (12).
Inspection and Repair for Bearings
1. Inspect Crankshaft
Set the dial indicator as shown in the illustration and
measure the crankshaft thrust clearance. If the thrust
clearance exceeds the specified limit, replace the
thrust bearings as a set.
Thrust Clearance
Standard : 0.06 mm±0.24 mm
(0.0024 in±0.0094 in)
Limit : 0.30 mm (0.0118 in)
015RS003
Main Bearing Clearance
1. Remove the bearing caps and measure the oil
clearance.
2. Remove the main bearing cap fixing bolts in the
sequence shown in the illustration.
Arrange the removed main bearing caps in the
cylinder number order.
Remove the main bearings.
015RS004
3. Remove the crankshaft.
Remove the main bearings.
4. Clean the upper and lower bearings as well as the
crankshaft main journal.
5. Check the bearings for damage or excessive wear.
The bearings must be replaced as a set if damage or
excessive wear is discovered during inspection.
6. Set the upper bearings and the thrust washers to their
original positions.
Carefully install the crankshaft.
7. Set the lower bearings to the bearing cap original
position.
8. Apply plastigage to the crankshaft journal unit as
shown in the illustration.
NOTE: Do not set the plastigage on the oil hole.
015RS005
Page 882 of 2100

6A±72
ENGINE MECHANICAL (6VE1 3.5L)
Carefully mount the crankshaft.
Apply engine oil to the thrust washer.
Assemble the thrust washer to the No.3 bearing
journal. The oil grooves must face the crankshaft.
015RS013
2. Rear oil seal (10)
Remove the oil from the cylinder block and the
retainer mounting surface.
Apply sealant (TB±1207B or equivalent) to the
retainer mounting surface, following the pattern
shown in the illustration.
The retainer must be installed within 5 minutes after
sealant application to prevent premature hardening
of sealant.
015RW002
Legend
(1) Around Bolt Holes
(2) Around Dowel Pin
Apply engine oil to the oil seal lip.
Align the cylinder block dowel pin holes with the rear
retainer dowel pins.
Tighten the rear retainer fixing bolts. New bolts
should be used when installing rear retainer.
Torque: 18 N´m (13 lb ft)
NOTE: Be very careful not to disengage the oil seal garter
spring during installation of the rear retainer.
If the seal was removed from retainer for
replacement, apply engine oil to the oil seal lip and
install the oil seal using J±39201 oil seal installer.
015RW001
015RS017
3. Flywheel (9)
1. Thoroughly clean and remove the oil from the
threads of crankshaft.
2. Remove the oil from the crankshaft and flywheel
mounting faces.
3. Mount the flywheel on the crankshaft and then
install the washer.
Page 892 of 2100
6A±82
ENGINE MECHANICAL (6VE1 3.5L)
Cylinder Block
Cylinder Block and Associated Parts
012RW010
Legend
(1) Cylinder Head Assembly
(2) Cylinder Head Gasket
(3) Crankcase with Oil Pan
(4) Oil Pipe and O-ring
(5) Oil Strainer and O-ring
(6) Oil Pump Assembly
(7) Cylinder Block Side Bolts(8) Oil Gallery
(9) Piston and Connecting Rod Assembly
(10) Flywheel
(11) Rear Oil Seal Retainer Assembly
(12) Main Bearing Cap
(13) Crankshaft
(14) Cylinder Block
Disassembly
1. Remove cylinder head assembly.
2. Remove cylinder head gasket.
3. Remove crankcase with oil pan.
4. Remove oil pipe and O-ring.5. Remove oil strainer and O-ring.
6. Remove oil pump assembly.
7. Remove crankcase side bolts.
8. Remove oil gallery.
9. Remove piston and connecting rod assembly.
10. Remove flywheel.
Page 895 of 2100

6A±85
ENGINE MECHANICAL (6VE1 3.5L)
Apply engine oil to oil seal lip and align a dowel pin
hole in the cylinder block with that in the retainer.
Tighten retainer fixing bolts to the specified torque.
Torque: 25 N´m (18 lb ft)
015RW001
4. Install flywheel
1. Thoroughly clean and remove the oil from the
threads of crankshaft.
2. Remove the oil from the crankshaft and flywheel
mounting faces.
3. Mount the flywheel on the crankshaft and then
install the washer.
4. Holding the crankshaft stationary, tighten the
flywheel bolts in the order shown.
Torque: 54 N´m (40 lb ft)
NOTE: Do not reuse the bolts and do not apply oil or
thread lock to the bolts.
015RS018
5. Install piston and connecting rod assembly.
Apply engine oil to the cylinder bores, the
connecting rod bearings and the crankshaft pins.
NOTE: Do not apply engine oil to the bearing back faces.
Check to see that the piston ring end gaps are
correctly positioned.
015RS019
Legend
(1) No.1 Compression Ring
(2) No.2 Compression Ring
(3) Oil Ring Side Rail Upper
(4) Oil Ring Side Rail Lower
(5) Piston Front Mark
Insert the piston/connecting rod assemblies into
each cylinder with the piston ring compressor.
The front marks (1) must be facing the front of the
engine.
015RS020