Isuzu Engine 1987 User Manual
‘:CHARG!NG SYSTEM
PRECAUTIONS
TROUBLESHOOTING
CH.ARGlNG SYSTEM CIRCUIT
ON-VEHICLE INSPECTION
ALTERNATOR
..,**....*..*..,,*....,,.*........ CH-2 *
,,..*.....*..........*..... CH-2
..,n....*.,.,.*...m
.,...,....‘.,,......*~
,,,~,..,*~.......~....,*,,...~....
Page
C.H-3
w-3
CH-7
CH-2
CHARGING SY&EM
: PRECAUTIONS
1. Check that the battery cables are connected to the
2. Disconnect the battery cables when the battery is
3. Do not perform tests with a high voltage insulation
4. Never disconnect the battery while the engine is run-
TROUBLESHOOTING
- Precautions, Troubleshooting
._
correct terminals.
given a quick charge.
resistance tester.
ning.
Problem
Discharge warning
light does not light
with ignition ON and
engine not ‘running
Discharge warning
light does not go out
with engine running
(battery requires fre-
quent recharging
Possible cause
Fuse blown
Light burned out
Wiring connection loose
IC regulator faulty
Drive belt loose or worn
Battery cables loose, corroded or worn
Fuse blown
Fusible link blown
IC regulator or alternator faulty
Wiring faulty
Remedy
Check “CHG” and
“IGN” fuses
Replace light
Tighten loose connections
Replace IC regulator
Adjust or replace drive belt
Repair or replace cables
Check “ENG” fuse
Replace fusible link
Check charging system
Repair wiring
Page
CH-7
CH-4
CH-3
Ignition Switch
Fuse
:usible
.ink
4LT
MA/
‘M-GE)
,258
:usible
-ink
I/IAIN 2.OL
I
T Battery
P
(MA)
Fusible
Link
AM2 30A
AM2 -0p IG2 (MA) 15~4
c
(MS)
(MS) 7.5A
/
CHG 7.5 A
I
8
I
i
I .
i
m
Alternator
ON-VEHICLE INSPECTION
1
1.
CHECK BATTERY SPECIFIC GRAVITY
(a) Check the specific gravity of each cell.
Standard specific gravity
tieI
fel
002
i
’ 2. CHECK BATTERY TERMINALS, FUSIBLE LINKS AND
c
CHOZRRI
When fully charged at 20°C (66°F):
If not within specifications, charge the battery.
(b) Check the electro!yte quantity of each cell.
If insufficient, refill with distilled (or purified) water.
FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
(b) Check the fusible links and fuses for continuity.
1.25 - 1.27
..............................
LUSRlCATlOIjl.SY$T~M
.........................
~.J4~~1
IGAITION SYSTEM 1 ............................. A-12 ;
STIJRiiNG S$&EM .............................
CilARGING SY$?EM
. . ..*.....................,,
A-13 1
A,434
,,
I !. .. Y”
I :
1
(
A12 :
SERVICE SPECIFICATIONS
- Enaine.Mechanical
EN$W4~~~WlECHAN~CAL (
‘t&.gy,.::*,. :
.,
Speclfrcations
‘-’ b- ~.
”
r
. . .
;Water Pump - Alternator
,, ‘Crankshaft
-Crankshaft - A/C compressor
,.
‘;
<” :
Engine coolant capacity
MA
,.
MS (GCC Countires’)
MS (Others)
Engine oil capacity
Dry fill
Drain and refill
Battery specific gravity
High-tension cord resistance
Spark plug
Conventional tipped type
Drive belt deflection or tension
.,:
..!
WI Heater or air con.
w/o Heater or air con.
WI Heater or air con.
w/o Heater or air con.
w/ Heater or air con.
w/o Heater or air con.
w/o Oil filter change
w/ Oil filter change
We
Air gap
Platinum tipped type
Type
Air gap 7M-GE
- PS pump New belt
7M-GE MA (GCC Countires’)
7M-GE MA (Others)
7M-GE MS
7M-GTE (M/T)
7M-GTE (A/T)
MA
MS
MA
MS
7M-GE
7M-GTE
7M-GTE
New belt
Used belt
Used belt
New hit
Used belt MA
M/T
A/T
M/T
A/T
Limit
ND
NGK
ND
NGK
ND
NGK
MA
MS
MS
: r’
:
/ w/ IO, kg (22.1 lb, 98 N) w/ SST (Reference)
,. .
IO 7 1.2:mm .0.39 - 0.47 in. 70 - 80 kg
I5 -, 17 mm 0.59 - 0.87 in. 30 - 45 kg
I- 8mm 0.28 - 0.31 in. 55 - 65 kg
3-llmm 0.35 - 0.43 in. ” 25 -‘40 kg
7 1 9.5‘mm 0.28 - 0.374 in. 53 - 77 kg
7;.5 - 9.5 mm 0.295 - 0.374 in. 53 - 77 kg
10.5 .- 12 mm 0.413 - 0.47 in. 30 - 40 kg
IO - 13.,mm
8.1 liters
8.0 liters.
7.5 liters
7.4 liters
8.5 liters
7.8 liters
7.8 liters
7.1 liters
5.0 liters
4.9 liters
5.3 liters
5.1 liters
5.0 liters
3.9 liters 4.1 US qts
4.1 liters
4.2 liters 4.4 us qts
4.4 liters
1.25 - 1.27 when fully charged at 20°C (68°F)
25 kn per cord
Q20R-U
BCPRGEY
0.8 mm
PQ16R
8CPR5EPll
PQ20R-P8
BCPRGEP-N8
1.1 mm
0.8 mm
. .
0.39 - 0.51 in.
8.5 US qts \
8.5 US qts
7.9 us qts
7.8 US qts
9.0 us qts
8.2 US qts
8.2 US qts
7.5 us qts
5.3 us qts
5.2 US qts
5.6 US qts
5.4 us qts
5.3 us qts
4.3 us qts 3.6 Imp. qts
4.7 us qts 3.9 Imp. qts
b.03 1
in.
0.043 in.
0.031 in.
30 - 40 kg
7.1 Imp. qts
7.0 Imp. qts:
6.8 Imp. qts
6.5 Imp. qts
7.5 Imp. qts
6.9 Imp. qts
6.9 Imp. qts
6.2 Imp. qts
4.4 Imp. qts
4.3 Imp. qts
4.7 Imp. qts
4.5 Imp. qts
4.4 Imp. qts
3.4 Imp. qts
3.7 Imp. qts
,:‘GCC Countries:
~~ s;
p;
.5&.,..‘ .,
gg&-&;,., ;.
Saudi Arabia, Sultanate of Oman, Bahrain, United Arab Emirates, Qatar, Kuwait.
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