2007 ISUZU KB P190 oil

UNIT REPAIR (JR405E) 7A4-23
CONTROL VALVE LOWER BODY

10CV11
Legend
1. Retainer plate, spring, and steel ball
2. Retainer plate, plug, spring, and pressure regulator valve
3. Retainer plate, spring, and high clutch accumulator
4. Retainer plate, plug, low and reverse brake fail valve A, and spring
5. Retainer plate, plug, spring, and fail valve
6. Retainer plate, plug, low and reverse brake amp valve, and spring
7. Oil pressure switch
8. Oil filter
9. Solenoid
10. Line pressure solenoid
11. Lock-up solenoid


12. Harness bracket
13. Solenoid fixing plate
14. Harness assembly
15. Retainer plate, plug, spring, and 2-4 brake fail valve A
16. Retainer plate, plug, spring, and low clutch amp valve B
17. Retainer plate, spring, and torque converter relief valve
18. Oil strainer
19. Control valve lower body
20. Retainer plate, spring, and 2-4 brake solenoid accumulator
21. Oil pressure switch


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4-24 UNIT REPAIR (JR405E)
Disassembly steps
• Remove the oil filter from the control valve lower body.

244L300009
Legend
1. Oil filter
2. Separation plate



•
Remove the control valve from the control valve lower
body.
NOTE:
Place the control valve where it will not get mixed up with
the other parts.

Inspection
Valve
Inspect each of the valves for denting and other damage.
Spring
Inspect each of the springs for wear and fatigue.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

UNIT REPAIR (JR405E) 7A4-27

Spring specifications
No. Valve nomenclature Free length
(mm / in) Outside
diameter
(mm / in) Linear
diameter
(mm / in) Number of
coils
14 Pressure relief 49.0 / 1.929 7.6 / 0.299 1.1 / 0.043 17.3
15 Pressure regulator 30.5 / 1.201 14.0 / 0.551 1.4 / 0.055 5.7
16 Low and reverse brake fail (A) 22.0 / 0.866 7.0 / 0.276 0.6 / 0.024 10.0
17 Fail 23.0 / 0.906 11.0 / 0.433 0.5 / 0.020 13.2
18 Low and reverse brake amp 19.5 / 0.768 7.9 / 0.311 0.5 / 0.020 6.9
19 2 – 4 brake fail (A) 24.8 / 0.976 8.5 / 0.335 0.9 / 0.035 7.8
20 Low clutch amp (B) 26.0 / 1.024 11.0 / 0.433 0.5 / 0.020 6.9
21
Torque converter relief More than 47.2
/ 1.858 9.2 / 0.362 1.6 / 0.063 20.2
22 2 – 4 brake solenoid accumulator 31.4 / 1.236 9.8 / 0.386 1.3 / 0.051 9.3
23 High clutch accumulator
51.0 / 2.008 6.5 / 0.256 0.8 / 0.031 23.5

Oil pressure switch
Apply compressed air (390 kPa/4.0 kgf/cm2/57 psi) to the oil
pressure switch to check the oil pressure switch continuity
between the connector and screw.






244L300011

Oil temperature sensor (harness assembly)
Check the oil temperature sensor resistance between harness
terminals 7 and 6 (ground).

Oil temperature sensor resistance: 2,400 ～
～～
～
2,600 ohms
(20 °
°°
°
C)


Solenoids
Measure the resistance of each solenoid.

Resistance:
Brown connector – 3.0 ∼
∼∼
∼
3.4 ohms (20 °
°°
°
C)
Gray connector – 12.0 ∼
∼∼
∼
13.2 ohms (20 °
°°
°
C)
White connector – 12.2 ∼
∼∼
∼
13.4 ohms (20 °
°°
°
C)

Reassembly steps
• Coat the parts with ATF before installing them.
• Install the control valve to the control valve lower body.
• Install the oil filter to the control valve lower body.



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4-28 UNIT REPAIR (JR405E)
OIL PUMP ASSEMBLY

01PUMP32
Legend
1. Oil seal
2. O-ring (small)
3. Oil pump housing
4. Inner rotor
5. Outer rotor

6. Oil pump cover
7. O-ring (large)
8. Seal ring (large)
9. Seal ring (small)
10. Bearing race


02PUMP07


Disassembly steps
1. Oil pump cover
2. Oil pump housing • Loosen the 8 bolts evenly a little at a time.


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

UNIT REPAIR (JR405E) 7A4-29

04PUMP10

•
Separate the oil pump cover from the oil pump housing
by tapping on each of the bolts with a plastic hammer.



06PUMP13

3. Inner rotor
Remove the inner rotor from the oil pump housing.



07PUMP14

4. Outer rotor
Remove the outer rotor from the oil pump housing.



15PUMP18

5. O-ring (small)
Remove the O-ring (small) from the oil pump housing.



08PUMP09

6. O-ring (large)
Remove the O-ring (large) from the oil pump cover.



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4-30 UNIT REPAIR (JR405E)

09PUMP05

7. Seal ring
Remove the 4 seal rings from the oil pump cover.



11PUMP43

Inspection
Oil pump cover
• Install new seal rings to the oil pump cover.
NOTE:
The seal ring with the large inside diameter fits into the
primary mating surface of the cover.
• Measure the gap between the seal ring and the seal ring
groove.
If the measured gap is outside the specified range, the
oil pump cover must be replaced.
Seal ring and seal ring groove gap: 0.10 ∼
∼∼
∼
0.25 mm
(0.0039 ∼
∼∼
∼
0.0098 in)

12PUMP45

Inner rotor
• Install the inner rotor to the oil pump housing.
• Use a straight edge to measure the side clearance
between the oil pump housing and the inner rotor.
If the measured clearance is outside the specified range,
the inner rotor must be replaced.
Oil pump housing and inner rotor side clearance:
0.02~0.04 mm (0.0008~0.0016 in)

13PUMP46

Outer rotor
• Install the outer rotor to the oil pump housing.
• Measure the gap between the outer rotor and the
crescent.
If the measured gap is outside the specified range, the
outer rotor must be replaced.
Outer rotor and crescent gap:
0.02~0.15 mm (0.0008~0.0059 in)

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

UNIT REPAIR (JR405E) 7A4-31


Reassembly steps

15PUMP18

1. O-ring (small)
Install new O-ring (small) to the oil pump housing.

16PUMP29

2. Outer rotor
3. Inner rotor Install the outer rotor and the inner rotor to the oil pump
housing.

17PUMP42

NOTE:
The identification mark on the inner rotor must be facing
the inside of the oil pump housing.

18PUMP07

4. Oil pump cover
5. Oil pump housing Install the oil pump cover to the oil pump housing.
Tighten the 8 bolts to the specified torque.
Torque: 9 N ⋅
⋅⋅
⋅
m (0.9 kgf ⋅
⋅⋅
⋅
m/78 Ib ⋅
⋅⋅
⋅
in)



6. O-ring (large)
Install the O-ring (large) to the oil pump cover.
7. Seal ring Install the 4 seal rings to the oil pump cover.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

7A4-34 UNIT REPAIR (JR405E)

08R&H36

8. High clutch piston
9. Reverse clutch piston • Install the reverse and high clutch drum to the oil pump.
• Force compressed air into the oil pump oil channels.
• Remove the high clutch piston and the reverse clutch
piston.


09R&H37



12R&H39

10.Seal ring (high clutch)
Remove the 2 seal rings from the high clutch piston.

13R&H38

11.Seal ring (reverse clutch)
Remove the 2 seal rings from the reverse clutch piston.




Inspection
Drive plates
• Measure the drive plate facing thickness at 3 points.
• Calculate the average value.
If the average value is less than the specified limit, the
drive plate must be replaced.
Drive plate facing thickness:
Standard – 2.0 mm (0.079 in)
Limit – 1.8 mm (0.071 in)


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007