2002 ISUZU AXIOM engine

6G±1
ENGINE LUBRICATION (6VE1 3.5L)
AXIOM
ENGINE
ENGINE LUBRICATION (6VE1 3.5L)
CONTENTS
Service Precaution 6G±1. . . . . . . . . . . . . . . . . . . . . .
General Description 6G±2. . . . . . . . . . . . . . . . . . . . .
Oil Pump 6G±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump and Associated Parts 6G±3. . . . . . . . . .
Disassembly 6G±4. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6G±4. . . . . . . . . . . . . . . . . .
Reassembly 6G±5. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pan and Crankcase 6G±7. . . . . . . . . . . . . . . . . .
Removal 6G±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6G±7. . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Pump 6G±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6G±9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6G±9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pump Oil Seal 6G±11. . . . . . . . . . . . . . . . . . . . . . .
Removal 6G±11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6G±11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Filter 6G±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6G±12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6G±12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specification 6G±13. . . . . . . . . . . . . .
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.

6G±2
ENGINE LUBRICATION (6VE1 3.5L)
General Description
C06RW003
Legend
(1) Oil Strainer
(2) Oil Pump
(3) Relief Valve
(4) Oil Pressure Switch
(5) Oil Filter
(6) Safety Valve
(7) Oil Gallery
(8) Crankshaft Bearing
(9) Crankshaft(10) Connecting Rod Bearing
(11) Connecting Rod
(12) Piston
(13) Oil Gallery; Cylinder Head
(14) Camshaft
(15) Camshaft Journal
(16) Front Journal; Camshaft Drive Gear
(17) Rear Journal; Camshaft Drive Gear
(18) Oil Pan

6G±3
ENGINE LUBRICATION (6VE1 3.5L)
Oil Pump
Oil Pump and Associated Parts
051RW005
Legend
(1) Crankshaft Timing Pulley
(2) Crankcase with Oil Pan
(3) Oil Pipe
(4) Oil Strainer
(5) Oil Pump Assembly
(6) Plug
(7) Spring(8) Relief Valve
(9) Oil Pump Cover
(10) Driven Gear
(11) Drive Gear
(12) Oil Seal
(13) O-ring
(14) Oil Pump Body

6G±4
ENGINE LUBRICATION (6VE1 3.5L)
Disassembly
1. Remove crankshaft timing pulley.
2. Remove crankcase with oil pan.
3. Remove oil pipe.
4. Remove oil strainer.
5. Remove oil pump assembly.
6. Remove plug.
7. Remove spring.
8. Remove relief valve.
9. Remove oil pump cover.
10. Remove driven gear.
11. Remove drive gear.
12. Remove oil seal.
13. Remove O-ring.
Inspection and Repair
CAUTION: M a k e necessary correction or parts
replacement if wear, damage or any other abnormal
conditions are found during inspection.
Relief Valve

Check to see that the relief valve slides freely.

The oil pump must be replaced if the relief valve does
not slide freely.

Replace the spring and/or the oil pump assembly (5) if
the spring is damaged or badly worn.
051RS002
Body and Gears
The pump assembly must be replaced if one or more of
the conditions below is discovered during inspection.

Badly worn or damaged driven gear (10).

Badly worn drive gear (11) driving face.

Badly scratched or scored body sliding face (14) or
driven gear (10).

Badly worn or damaged gear teeth.
Measure the clearance between the body and the driven
gear with a feeler gauge.
Standard : 0.10 mm±0.18 mm
(0.0039 in.±0.0070 in)
Limit : 0.20mm (0.0079 in)
051RS004

Measure the clearance between the drive gear and
driven gear with a feeler gauge.
Standard : 0.11 mm±0.24 mm
(0.0043 in±0.0094 in)
Limit : 0.35mm (0.0138 in)
051RS003

6G±5
ENGINE LUBRICATION (6VE1 3.5L)

Measure the side clearance with a precision straight
edge and a feeler gauge.
Clearance
Standard : 0.03 mm±0.09 mm
(0.0011 in±0.0035 in)
Limit : 0.15mm (0.0059 in)
051RS005
Oil Strainer
Check the oil strainer for cracking and scoring. If cracking
and scoring are found, the oil strainer must be replaced.
051RS006
Reassembly
1. Install drive gear (11).
2. Install driven gear (10).
3. Install oil pump cover (9) and first, loosely tighten all of
the attaching screws. Next, tighten the attaching
screws to the specified torque.
Torque : 10 N´m (87 lb in)
After installation, check that the gear rotates
smoothly.4. Install relief valve (8) and apply engine oil to the relief
valve and spring (7).
5. Install spring (7).
6. Install the plug (6).
Torque : 8 N´m (69 lb in)
051RS007
7. Install oil pump assembly (5).

Carefully remove any oil from the cylinder body and
the pump. Apply sealant (TB±1207B or equivalent)
to the pump fitting face as shown in illustration. Take
care that sealant is not applied to oil port surfaces.
The oil pump assembly must be installed within 5
minutes after sealant application to prevent
premature hardening of sealant.
CAUTION: Do not apply an excessive amount of
sealant to the contact surface. Applying too much
sealant will overflow the contact surfaces. This
could cause serious damage to the engine.

Attach oil pump assembly to cylinder body.

Tighten the oil pump fixing bolts.
Torque : 25 N´m (18 lb´ft)
051RW002

6G±6
ENGINE LUBRICATION (6VE1 3.5L)
051RW001
Legend
(1) Around Bolt Holes
(2) Around Dowel Pin
8. Install the new oil seal (12). Apply engine oil to the oil
seal lip before installation then use J±39202 oil seal
Installer, install oil seal.
015RS001
9. Install oil strainer (4) with O-ring (13).
Torque: 25 N´m (18 lb ft)
10. Install oil pipe (3) with O-ring (13).
Torque: 25 N´m (18 lb ft)
11. Install crankcase with oil pan (2).

Remove oil on crankcase mounting surface and dry
the surface.

Apply a proper 4.5 mm (0.7 in) wide bead of sealant
(TB1207C or equivalent) to the crankcase
mounting surface. The bead must be continuous.

The crankcase must be installed within 5 minutes
after sealant application to prevent premature
hardening of sealant.

Tighten fixing bolts to the specified torque.
Torque : 10 N´m (87 lb in)
013RW010
12. Install crankshaft timing pulley.

6G±7
ENGINE LUBRICATION (6VE1 3.5L)
Oil Pan and Crankcase
Removal
1. Disconnect battery ground cable.
2. Lift vehicle by supporting the frame.
3. Remove under cover.
4. Drain engine oil.
5. Remove front wheels.
6. Remove oil level dipstick from level gauge tube.
7. Remove radiator under fan shroud.
8. Remove shift on the fly from axle housing.
9. Remove suspension cross member fixing bolts, 2 pcs
each per side and remove suspension cross member.
10. Remove axle housing assembly four fixing bolts from
housing isolator side and mounting bolts from wheel
side. At this time support the axle with a garage jack
and remove axle housing assembly. (for 4y4)
11. Remove the steering unit assembly.
12. Remove starter fixing bolts.
13. Remove oil pan fixing bolts.
14. Remove oil pan, using J-37228 sealer cutter, remove
oil pan.
013RS003
15. Remove crankcase fixing bolts.
16. Remove crankcase, using J-37228 sealer cutter,
remove crankcase.
NOTE: Do not deform or damage the flange of oil pan and
crankcase.
Replace the oil pan and/or crankcase if deformed or dam-
aged.
013RS003
Installation
1. Install crankcase.
A. Remove residual sealant, lubricant and moisture
from mounting surface, then dry thoroughly.
B. Properly apply a 4.5 mm (0.7 in) wide bead of
sealant (TB-1207C or equivalent) to mounting
surface of crankcase.
Sealant bead must be continuous.

The crankcase must be installed within 5 minutes
after sealant application to prevent premature
hardening of sealant.
013RW010

6G±8
ENGINE LUBRICATION (6VE1 3.5L)
C. Install crankcase, tighten crankcase fixing bolts to
the specified torque.
Torque : 10 N´m (87 lb in)
013RW004
2. Install oil pan
A. Remove residual sealant, lubricant and moisture
from mounting surface, then dry thoroughly.
B. Properly apply a 4.5 mm (0.7 in) wide bead of
sealant (TB-1207C or equivalent) to mounting
surface of oil pan.
Sealant beat must be continuous.

The crankcase must be installed within 5 minutes
after sealant application to prevent premature
hardening of sealant.
013RW003
C. Install oil pan, tighten oil pan fixing bolts to the
specified torque.
Torque : 10 N´m (87 lb in)
3. Install starter and tighten fixing bolts.
Torque: 40 N´m (30 lb ft)4. Install axle housing assembly and tighten fixing bolts
to the specified torque. (for 4y4)
Axle case bolts
Torque : 82 N´m (61 lb ft)
Mounting bolts
Torque : 152 N´m (112 lb ft)
013RW005
5. Install the shift on the fly.
6. Install relay lever assembly and tighten fixing bolts.
Torque: 44 N´m (33 lb ft)
7. Install suspension cross member and tighten fixing
bolts to the specified torque.
Torque : 78 N´m (58 lb ft)
013RW007
8. Install radiator under fan shroud.
9. Install under cover.
10. Install engine oil level dipstick.
11. Fill engine oil until full level on engine oil gauge
dipstick.