Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 580

6A – 158 ENGINE MECHANICAL

OIL FILTER AND OIL COOLER

DISASSEMBLY

Disassembly Steps

1.

Drain plug

5.

Safety valve

2.

Cartridge oil filter

6.

Relief valve

3.

Oil

cooler

7.

Oil

filter

body

4. O-ring

ENGINE MECHANICAL 6A – 159

DISASSEMBLY

Disassembly Steps

1.

Oil filter cartridge

5.

Gasket

2.

Bolt

6.

Body

3.

Gasket

7.

Relief

valve

4. Oil

cooler

Except 4JA1

6A – 160 ENGINE MECHANICAL

INSPECTION AND REPAIR

Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discovered during
inspection.

Relief Valve

1. Attach an oil pressure gauge to the oil gallery near the

oil filter.

2. Start the engine to check the relief valve opening

pressure.

Relief Valve Opening Pressure

kg/cm

2

(psi/kPa)

4JA1, 4JA1T

4.3 – 4.7 (61.1 – 66.8/421.4 – 460.6)

4JB1T, 4JG2T,
4JA1TC,
4JH1TC

5.7 – 6.3 (82.5 – 89.5/558.6 – 617.4)

Oil Cooler

Water Leakage at Water Passage
1. Plug one side of the oil cooler water passage.
2. Submerge the oil cooler in water.
3. Apply compressed air (2 kg/cm

2

(28 psi/200 kPa)) to

the other side of the oil cooler water passage.

If air bubbles rise to the surface, there is water leakage.

ENGINE MECHANICAL 6A – 161

REASSEMBLY

Reassembly Steps

1.

Oil filter body

J

5.

Oil cooler

J

2.

Relief valve

J

6. Oil filter cartridge

3. Safety

valve

J

7. Drain plug

4. O-ring