engine ISUZU TF SERIES 2004 Workshop Manual

ENGINE LUBRICATION 6G-1
SECTION 6G
ENGINE LUBRICATION
CONTENTS
PAGE
General Description........................................................................................................ 6G- 2
Service Precaution ......................................................................................................... 6G- 3
Oil Pump .......................................................................................................................... 6G- 4
Oil Pump and Associated Parts ................................................................................ 6G- 4
Disassembly ............................................................................................................... 6G- 4
Inspection and Repair................................................................................................ 6G- 5
Reassembly ................................................................................................................ 6G- 5
Oil Pan ............................................................................................................................. 6G- 6
Oil Pan and Associated Parts ................................................................................... 6G- 6
Disassembly ............................................................................................................... 6G- 6
Inspection and Repair................................................................................................ 6G- 7
Reassembly ................................................................................................................ 6G- 7

6G-2 ENGINE LUBRICATION
General Description
Legend
1 Oil Strainer
2 Oil Pump
3 Relief Valve
4 Oil Filter
5 Safety Valve
6 Oil Gallery
7 Crankshaft Bearing
8 Crankshaft9 Connecting Rod Bearing
10 Connecting Rod
11 Piston
12 Oil Gallery; Cylinder Head
13 Camshaft
14 Camshaft Journal
15 HLV
16 Check relief valve
17 Oil Pan




A gear-type oil pump is directly driven by the crankshaft and
draws oil from the oil pan, via the suction pipe. If then passes
the pressured oil through a full-flow disposable oil filter, to the
main oil gallery in the cylinder Block. An oil pump pressure
relief valve and oil filter bypass valve are incorporated in the
system.
From the main oil gallery in the cylinder block, the cylinder
head and crankshaft main bearings are supplied with oil.
The camshaft bearings and hydraulic tappets are supplied
through the main feed galleries in the cylinder head. Vent
valves allow air to be expelled from the oil galleries in the
cylinder head. The balance shaft journals are directly fed from
the crankshaft main bearings. The connecting rod bearings are
fed via passages in the crankshaft. The oil returns to the oil
pan via passages in the cylinder block.

ENGINE LUBRICATION 6G-3

Service Precaution
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-4 ENGINE LUBRICATION
Oil Pump
Oil Pump and Associated Parts
Legend
1 Oil Pump Assembly
2 Oil Pressure Switch3 Gasket
4 Sleeve



Disassembly
1. Remove crankshaft timing pulley.
2. Remove oil pan.
3. Remove oil strainer.
4. Remove oil pump assembly.
5. Remove oil pressure switch.
6. Remove gasket.
7. Remove sleeve.

ENGINE LUBRICATION 6G-5

Inspection and Repair
CAUTION: Make necessary correction or parts
replacement if wear, damage or any other abnormal
conditions are found through inspection.
Body and Gears
The pump assembly must be replaced if one or more of the
conditions below is discovered during inspection:
Indentation of gear pair - Use feeler strip and straight edge.
Dimension: 0.03 mm to 0.10 mm
(0.0012 to 0.0039 in)



Oil Strainer
Check the oil strainer for cracking and scoring. If cracking and
scoring are found, the oil strainer must be replaced.




Reassembly
1. Install oil pressure switch to the oil pump.
Torque: 40 N




m (4.1 kgf




m)
2. Install the oil pump with the sleeve and the gasket.
Torque: 6 N




m (0.6 kgf




m)
3. Install oil strainer.
Torque: 8 N




m (0.8 kgf




m)
4. Install the oil pan.
Tighten the bolts:
15 N




m (1.5 kgf




m)
5. Install crankshaft timing pulley.
Tighten the bolts:
20 N




m (2.0 kgf




m)

6G-6 ENGINE LUBRICATION
Oil Pan
Oil Pan and Associated Parts
(2.4L 4 ×4 Model)
(2.4L 4 ×2 Model)






Important
Disassembly
1. Loosen a drain plug to drain oil.
2. Remove engine hood.
3. Remove engine rear mounting.
4. Remove transmission assembly.
5. Remove engine front mounting.
6. Raise the vehicle and support with switch stands, and then remove engine.
7. Remove oil pan.

ENGINE LUBRICATION 6G-7










Inspection and Repair
CAUTION: Make necessary correction or parts replacement if wear, damage or any other
abnormal conditions are found through
inspection.

Reassembly
To install, follows the disassembly steps in the reverse order.

Important
Sealer - Apply silicon into groove in oil pan lugs prior to fitment of oil pan to block, remove excess sealer after oil pan
is bolted to block.

(2.4L 4 ×4 Model)
4
3
1
2

(2.4L 4 ×2 Model)
4
3
1
2

Torque
Bolts - Tighten bolts to the specified torque.
Torque : 20 N
m (2.0 kgf
m)
Engine oil - Refill engine oil to the oil pan. (Lit)
Replacement Oil Fill Volume 2.4L
Without filter change 4.00
With filter change 4.25

6G-8 ENGINE LUBRICATION
MEMO

ENGINE SPEED CONTROL SYSTEM (C24SE) 6H-1
ENGINE
ENGINE SPEED CONTROL SYSTEM (C24SE)
CONTENTS

Service Precaution............................................... 6H-1
Accelerator Pedal Control Cable...................... 6H-2
Removal.............................................................. 6H-2
Inspection........................................................... 6H-3
Installation.......................................................... 6H-3




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, REFE
R
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, o
r
other corrosion inhibitors) on threaded fasteners o
r
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.

6H-2 ENGINE SPEED CONTROL SYSTEM (C24SE)
Accelerator Pedal Control Cable

RHD MODEL


RTW46HLF000501

Removal
1. Disconnect the accelerator control cable from the
accelerator pedal and dash panel.
2. Remove the cable clips.
3. Remove the accelerator control cable from
accelerator control cable bracket.
1) Slide the lock in direction A
2) Rotate the ratchet ring in indirection an arro
w
90
.