Isuzu KB P190. Manual - part 907

Starting System – V6 

Page 6D1-2–20 

 

6 

Fit the rear lifting brackets: EN–46114 (1) to the 
engine, then hook the chains from the engine hoist 
onto the rear lifting bracket. 

7 

Remove the oil level indicator tube, Refer to 6A1 
Engine Mechanical – V6. 

 

Figure 6D1-2 –  9 

8 

Remove the left hand side knock sensor (1) from the 
engine block. 

 

 

Figure 6D1-2 –  10 

9 

Remove the left hand side engine mount, then using 
the engine hoist raise the engine to give sufficient 
clearance to remove the starter motor. 

Figure 6D1-2 –  11 

Starting System – V6 

Page 6D1-2–21 

 

10 

Unclip the oil level sensor harness from the heat shield 
(1). 

11 

Remove the heat shield attaching screw (2). 

12 

Remove the lower starter motor attaching bolt (3). 

13 

Remove the heat shield. 

14 

Remove the upper starter motor retaining bolt (3). 

15 

Remove the starter motor from the engine block and 
lower the starter motor as far as possible to gain 
access to the wiring harness connections. 

 

 

 

Figure 6D1-2 –  12 

16 

Remove the wiring harness connector P – 3 (1) from 
the solenoid switch (2). 

17 

Remove the flange nut (3) and battery connector P – 4 
(4) from the solenoid switch. 

18 

Remove the starter motor from the vehicle. 

 

Figure 6D1-2 –  13 

Reinstall 

Reinstallation of the starter motor is the reverse of the removal procedure noting the following: 

1 

Tighten all fasteners to the correct torque specification. 

Solenoid switch connector P – 4 nut (B+) 
torque specification ............................................10.0 Nm 

Starter motor heat shield lower bolts 
torque specification ............................................23.0 Nm 

Starter motor heat shield upper screw 
torque specification .....................................3.0 – 5.0 Nm 

Starter motor mounting bolt 
torque specification ............................................45.0 Nm 

Knock sensor bolt 
torque specification ............................................23.0 Nm 

2 

Check the starter motor operates correctly. 

 

Starting System – V6 

Page 6D1-2–22 

 

4.3 

Starter Motor Bench Tests 

Preliminary Checks 

1 

Check the drive assembly is fully retracted. 

2 

Check the drive assembly pinion turns freely on the planetary drive shaft. 

3 

Perform the No Load Test (as outlined in this Section) if the drive assembly is not fully retracted. 

4 

Disassemble and service the starter motor if it fails the No Load test, refer to 4.4  Starter Motor Disassemble and 
Reassemble in this Section. 

Pull-in Test 

1 

Clamp the starter motor, by the mounting lug in the 
drive-end housing, in a vice with soft jaws. 

2 

Remove the nut (1) and washer (2) from the 
solenoid switch M terminal (3). 

3 

Remove the braided cable (4) from the solenoid 
switch M terminal. 

Figure 6D1-2 –  14 

4 

Connect the starter motor to an auxiliary battery, as 
follows: 

a 

Connect the test lead (1) between the battery 
negative post to the solenoid switch M terminal 
(3). 

b 

Connect the test lead (2) battery positive post.

5 

Momentarily hold the free end of test lead (2) to 
solenoid switch terminal P – 3. 

6 

Check the solenoid switch activates and the drive 
assembly moves outward. 

7 

Disassemble and service the starter motor if the 
solenoid switch activates but the drive assembly 
does not move, refer to 4.4 

Starter Motor 

Disassemble and Reassemble in this Section. 

8 

Replace the solenoid switch if it does not activate 
(there is no sound or movement). 

Figure 6D1-2 –  15 

Starting System – V6 

Page 6D1-2–23 

 

Hold-in Test 

1 

Connect the starter motor to an auxiliary battery, as 
follows: 

a 

Connect the test lead (1) between the battery 
negative post to the solenoid switch M 
terminal. 

b 

Connect the test lead (2) from the battery 
positive post to solenoid switch terminal 
P – 3. 

c 

Connect the test lead (3) to the starter motor 
casing. 

2 

Disconnect the test lead (1) from the M terminal of 
the solenoid switch. 

3 

Check the drive assembly remains extended. 

4 

Replace the solenoid switch if the drive assembly 
returns back into the starter motor. 

Figure 6D1-2 –  16 

Drive Assembly Return Test 

1 

Connect the starter motor to an auxiliary battery, as 
follows: 

a 

Connect the test lead (1) between the battery 
negative post to the solenoid switch M 
terminal. 

b 

Connect the test lead (2) from the battery 
positive post to solenoid switch terminal 
P – 3. 

c 

Connect the test lead (3) to the starter motor 
casing. 

2 

Disconnect the test lead (1) from the M terminal of 
the solenoid switch. 

3 

Disconnect the negative lead (2) from the starter 
motor casing. 

4 

Check the drive assembly returns back into the 
starter motor. 

5 

Replace the solenoid switch if the drive assembly 
does not retract. 

Figure 6D1-2 –  17