Isuzu N-Series. Manual — part 554
SERVICE INFORMATION 00-31
Piston,
Piston
pin, Pis-
ton ring
and Con-
necting
rod
Connecting
rod align-
ment
Bend
0.08 (0.0031) or less
0.20 (0.0079)
Per 100
(3.94)
Twist
0.05 (0.0020) or less
0.15 (0.0059)
Per 100
(3.94)
Piston pin and Con-
necting Rod Bushing
Clearance
0.008 — 0.020 (0.0003 —
0.0008)
0.050 (0.0020)
Connecting rod thrust
clearance
0.230 (0.0091)
0.35 (0.0138)
Oil clearance
(Between crank pin
and Connecting rod)
0.029 — 0.083
(0.0014 — 0.0033)
0.029 —
0.066
(0.0011
—
0.0026)
0.100 (0.0039)
Cylinder
Block
Warpage (Upper sur-
face of the cylinder
block)
—
0.20 (0.0079)
Cylinder bore diame-
ter
97.000 — 97.040
(3.8189 — 3.8205)
95.011
—
95.040
(3.7406
—
3.7417)
Cylinder liner projec-
tion
0.0 — 0.1 (0.00 — 0.0039)
Cylinder liner inside
diameter
95.420 — 95.460
(3.7567 — 3.7583)
93.020
—
93.060
(3.6622
—
3.6638)
Cylinder liner outside
diameter
97.011 — 97.050
(3.8193 — 3.8209)
95.011
—
95.050
(3.7405
—
3.7421)
mm (in)
Parts
Item
Service standard
Service limit
Remarks
4JH1-TC
4JG2
4JB1 /
4JB1-TC
4JH1-TC
4JG2
4JB1 /
4JB1-TC
00-32 SERVICE INFORMATION
SERVICING
Servicing refers to general maintenance procedures to
be performed by qualified service personnel.
Model Identification
Engine Serial Number
The engine number is stamped on the front left hand
side of the cylinder body.
Air Cleaner
Dry Type Paper Element
Element cleaning procedures will vary according to the
condition of the element.
Dust Fouled Element
Rotate the element with your hand while applying com-
pressed air to the inside of the element. This will blow
the dust free.
Caution:
Do not bang the element against another object in an at-
tempt to clean it. Damage to the element will result.
Carbon and Dust Fouled Element
1. Prepare a cleaning solution of Isuzu Genuine Ele-
ment Cleaner (Donaldson D1400) diluted with wa-
ter.
2. Submerge the element in the solution for twenty
minutes.
3. Remove the element from the solution and rinse it
well with running water.
Water pressure must not exceed 274 kPa (2.8 kg/
cm
2
/40 psi)
Compressed air pressure
kPa (kg/cm
2
/psi)
392 — 490 (4 — 5/57 — 71)
N6A3002E
N6A0009E
N6A0010E
SERVICE INFORMATION 00-33
4. Dry the element in a well ventilated area.
An electric fan will hasten drying.
Notice:
Do not use compressed air or an open flame to dry the
element quickly. Damage to the element will result. It will
usually take two or three days for the element to dry
completely. Therefore, it is a good idea to have a spare
on hand to use in the interim.
Lubricating System
Main Oil Filter (Cartridge Type Paper Element)
Replacement Procedure
1. Loosen the used oil filter by turning it counterclock-
wise with the filter wrench.
2. Clean the oil filter fitting face.
This will allow the new oil filter to seat properly.
3. Apply a light coat of engine oil to the O-ring.
4. Turn in the new oil filter until the filter O-ring is fitted
against the sealing face.
5. Use the filter wrench to turn in the filter an addition-
al 1 and 1/4 turns.
Filter Wrench:
5-8840-0200-0 (89mm/3.5in)
5-8840 0202-0 (106mm/4.2in)
5-8840-2209-0 (100.6mm/4.0in)
6. Check the engine oil level and replenish to the
specified level if required.
7. Start the engine and check for oil leakage from the
main oil filter.
Fuel System
Fuel Filter Replacement Procedure
1. Loosen the used fuel filter by turning it counter-
clockwise with the filter wrench.
Filter Wrench: 5-8840-0253-0 (J-22700)
N6A0011E
N6A0012E
Replenishment Engine Oil
lit (Imp qt/US qt)
0.7 (0.62/0.74)
N6A3007E
N6A3008E
00-34 SERVICE INFORMATION
2. Clean the filter cover fitting faces.
This will allow the new fuel filter to seat properly.
3. Turn in the fuel filter until the sealing face comes in
contact.
4. Turn in the fuel filter an additional 2/3 of a turn with
a filter wrench.
Filter Wrench: 5-8840-0253-0 (J-22700)
5. Loosen the bleeder plug on the injection pump
overflow valve.
6. Operate the priming pump until fuel begins to flow
from the fuel filter.
7. Retighten the bleeder plug.
8. Operate the priming pump several times and check
for fuel leakage.
Notice:
The use of an ISUZU genuine fuel filter is strongly rec-
ommended.
Fuel Filter Water Draining Procedure
The indicator light will come on when the water level in
the water separator exceeds the specified level.
Drain the water and foreign material from the water sep-
arator with the following procedure.
N6A3009E
N6A3010E
N6A3011E
N6A3012E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст