Page 1569 of 6020
6C-28 FUEL SYSTEM (4JK1/4JJ1)
Removal
1. Partially drain the engine coolant.
Refer to drain procedure for engine cooling in this manual.
2. Remove the radiator upper hose.
RTW 56FSH000101
3. Remove the fan guide.
RTW 46BSH000101
Legend
1. Fan Guide
2. Clips
3. Lower Fan Guide
4. Fan Shroud
4. Remove the cooling Fan.
RTW 56ASH025401
5. Remove the A/C compressor drive belt.
6. Remove the A/C compressor adjust pulley.
RTW 56ASH010601
Legend
1. Bolt
2. Nut
7. Remove the battery.
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ISUZU KB P190 2007
Page 1570 of 6020
FUEL SYSTEM (4JK1/4JJ1) 6C-29
8. Disconnect the A/C compressor.
RTW 56ASH024201
Legend
1. A/C Compressor Bracket
2. Intake Duct
3. A/C Compressor
9. Remove the A/C compressor bracket.
10. Remove the fuel rail assembly.
Refer to “Fuel Rail Assembly”.
11. Remove the cylinder head cover.
Refer to “Cylinder Head Cover” in ENGINE MECHANICAL section.
12. Disconnect the camshaft position senso
r
connector (1).
RTW 56ESH003201
13. Remove the noise cover (1).
RTW 56CSH001401
14. Remove the timing chain cover assembly. Upper &
lower.
RTW 56CSH001501
Legend
1. Timing Chain Cover Upper
2. Timing Chain Cover Lower.
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ISUZU KB P190 2007
Page 1571 of 6020
6C-30 FUEL SYSTEM (4JK1/4JJ1)
15. Align the timing marks at 3 locations as shown.
RTW 76ASH001301
Legend
1. TDC
RTW 56ASH006901
Legend
1.
Align mark on intake camshaft and exhaust
camshaft to mark of bearing cap
16. Loosen the nut (1).
RTW 56CSH001601
17. Remove the timing chain tensioner.
RTW 56CSH003701
Legend
1. Timing Chain Tensioner.
2. Gasket
3. Nut
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ISUZU KB P190 2007
Page 1572 of 6020
FUEL SYSTEM (4JK1/4JJ1) 6C-31
18. Remove the timing chain tension lever pivot.
19. Remove the nut and sprocket.
RTW 56CSH004101
Legend
1. Tension Lever Pivot
2. Sprocket
3. Nut
20. Timing chain in moved upwards.
RTW 56CSH003301
21. Paint the alignment mark.
Between idle gear A and supply pump gear.
RTW 56AMH000401
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ISUZU KB P190 2007
Page 1573 of 6020
6C-32 FUEL SYSTEM (4JK1/4JJ1)
22. Use a gear puller to remove the fuel supply pump
gear.
RTW 56CSH002901
23. Remove the supply pump (1) and supply pump
bracket (2).
• Disconnect the connector of supply pump.
RTW 58ESH002901
Legend
1. Fuel Temperature (FT) Sensor
2. Suction Control Valve (SCV)
Note:
• Do not hold the high pressure pipe, during the
supply pump removal procedure.
• Do not grasp the high pressure pipe, when
moving the supply pump from one location to
another.
RTW 56CSH002001
24. Remove the supply pump and O-ring.
RTW 56CSH002501
Legend
1. O-ring
2. Supply Pump
3. High Pressure Pipe
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ISUZU KB P190 2007
Page 1574 of 6020

FUEL SYSTEM (4JK1/4JJ1) 6C-33
Installation
1. Install the O-ring to the fuel supply pump.
2. Install the fuel supply pump.
Apply soapy water to the O-ring before attaching.
Note: Take care not to twist the O-ring. 3. Install the fuel supply pump bracket.
Temporarily tighten with the bolts and nuts (Gea
r
case side).
Temporarily tighten with the bolts (Cylinder bod
y
side).
Fully tighten the nuts and bolts (Gear case side).
Fully tighten the bolts (Cylinder body side).
Tightening torque: 25 N ⋅
⋅⋅
⋅
m (2.5 kg ⋅
⋅⋅
⋅
m /18 lb ft)
RTW 56CSH002001
Legend
1. Fuel Supply Pump
2. Fuel Supply Pump Bracket
4. Confirm that the supply pump camshaft key is
turned to the right and is horizontal.
RTW 56CSH004301
5. Install the fuel supply pump gear to the pump
shaft.
a.
Align the fuel pump gear timing mark (1) with
the idle gear A paint marks (2).
b. Ensure that the pump gear is bitten with main gear (3) of the idle gear A. Depress the pump
gear when it is bitten with scissors gear (4) o
f
the idle gear A.
RTW 56CSH005101
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ISUZU KB P190 2007
Page 1575 of 6020
6C-34 FUEL SYSTEM (4JK1/4JJ1)
6. Install the timing chain to the each sprocket and
install the fuel supply pump sprocket to the pump
shaft.
a.
Align the camshaft sprocket timing mark (1)
with the dark plate timing chain link (2).
b.
Align the fuel supply pump sprocket timing
mark (3) with the yellow plate timing chain link
(4).
c. Install the fuel supply pump sprocket to the fuel pump shaft by aligning the dowel pin that is
attached to the gear.
d. Hand-tighten the fuel supply pump shaft nut.
RTW 56CSH005001
7. Install the timing chain tension lever pivot. Hand-
tighten the pivot bolt.
• Confirm the tension lever moves smoothly.
RTW 56ASH019401
8. Attach the hook of the timing chain tensioner.
• Hold the latch (3) depressed. Insert the plunge
r
(2). Attach the hook (5) to the pin (1) to hold the
plunger in place.
RTW 56CSH004401
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ISUZU KB P190 2007
Page 1576 of 6020
FUEL SYSTEM (4JK1/4JJ1) 6C-35
9. Install the timing chain tensioner.
Tighten the nut to the specified torque.
Tightening torque: 10 N ⋅
⋅⋅
⋅
m (1.0 kg ⋅
⋅⋅
⋅
m/ 87 lb in)
RTW 56CSH001701
Legend
1. Timing Chain Tensioner
2. Gasket
3. Nut
10. Unlock the tensioner hook.
• Press the place of the arrow in the figure.
• The hook is opened. The plunger pushes the
tension lever.
RTW 56ASH020401
11. Tighten the fuel supply pump shaft nut.
Tighten the nut (1) to the specified torque.
Tightening torque: 130 N ⋅
⋅⋅
⋅
m (13.3 kg ⋅
⋅⋅
⋅
m / 96 lb ft)
RTW 56CSH001601
12. Tighten the timing chain tension lever pivot bolt to
the specified torque.
Tightening torque: 27 N ⋅
⋅⋅
⋅
m (2.8 kg ⋅
⋅⋅
⋅
m / 20 lb ft)
13. Turn the crank pulley two rotations (720°CA).
14. Check mark (1) on intake camshaft and exhaust camshaft to mark of camshaft bearing cap.
RTW 56ASH006901
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ISUZU KB P190 2007