Suzuki Grand Vitara JB416 / JB420 / JB419. Service manual - part 172

1E-17 Engine Lubrication System: For J20 Engine

Oil Pump Components

S6JB0A1526004

Oil Pump Removal and Installation

S6JB0A1526005

CAUTION

Don’t remove sprocket and inner rotor from
oil pump, otherwise damage of oil pump
center shaft and abnormal operation of oil
pump could result.

Removal

1) Disconnect negative cable at battery.
2) Drain engine oil referring to “Engine Oil and Filter

Change (Petrol Engine Model) in Section 0B”.

3) Remove oil pan and oil pump strainer.

Refer to “Oil Pan and Oil Pump Strainer Removal
and Installation: For J20 Engine”.

4) Remove baffle plate from lower crank case (1).
5) Remove oil pump chain guide.
6) Remove oil pump (2) with sprocket from lower crank

case (1).

I5JB0A152010-02

1. Cylinder block

6. Oil pump mounting bolt (M8 bolt)

11. Oil pump chain guide nut

: 25 N

⋅m (2.5 kgf-m, 18.0 lb-ft)

2. Oil pump relief valve set

: Replace as a set.

7. Oil pump case bolt

12. Oil pump case No.1

: 12 N

⋅m (1.2 kgf-m, 9.0 lb-ft)

3. Baffle plate

8. Oil pump relief valve retainer

13. Oil pump case No.2

: 28 N

⋅m (2.5 kgf-m, 20.5 lb-ft)

4. Pin No.1

9. Oil pump chain guide

14. Pin No.3

: 11 N

⋅m (1.1 kgf-m, 8.0 lb-ft)

5. Pin No.2

10. Oil pump chain guide plate

15. Baffle plate bolt (M6 bolt)

: 11 N

⋅m (1.1 kgf-m, 8.0 lb-ft)

I2RH01150016-01

Engine Lubrication System: For J20 Engine 1E-18

Installation

1) Install oil pump (2) and baffle plate to lower crank

case (1) and tighten bolts to specified torque.

NOTE
When installing oil pump, be careful not to
allow pins to fall off.

Tightening torque
Oil pump mounting bolt (M8 bolt) (a): 25 N·m (
2.5 kgf-m, 18.0 lb-ft)
Baffle plate bolt (M6 bolt): 11 N·m (1.1 kgf-m, 8.0
lb-ft)

2) Install oil pump chain guide (1), and tighten bolts to

specified torque.

Tightening torque
Oil pump chain guide nut (a): 11 N·m (1.1 kgf-m,
8.0 lb-ft)

3) Install oil pan and oil pump strainer.

Refer to “Oil Pan and Oil Pump Strainer Removal
and Installation: For J20 Engine”

4) Install front suspension frame referring to “Front

Suspension Frame, Stabilizer Bar and/or Bushings
Removal and Installation in Section 2B”.

5) Refill engine with engine oil referring to “Engine Oil

and Filter Change (Petrol Engine Model) in Section
0B”.

6) Connect negative cable at battery.
7) After completing installation, check oil pressure by

running engine. Refer to “Oil Pressure Check: For
J20 Engine”.

Oil Pump Disassembly and Assembly

S6JB0A1526006

CAUTION

Don’t remove sprocket and inner rotor from
oil pump, otherwise damage of oil pump
center shaft and abnormal operation of oil
pump could result.

Disassembly
• Disassemble oil pump referring to “Oil Pump

Components: For J20 Engine”.

Assembly

1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors,

and inside surfaces of oil pump case.

3) Install outer rotor to pump case No.1.
4) Install relief valve (3), relief spring (2) and retainer (1)

to oil pump case No.2 (4).
Tighten retainer to specified torque.

Tightening torque
Oil pump relief valve retainer (a): 28 N·m (2.8
kgf-m, 20.5 lb-ft)

5) Install oil pump case pins (5) to oil pump case No.2.

6) Assemble oil pump. After assembling oil pump,

check to be sure that rotor turns smoothly by hand.

Tightening torque
Oil pump case bolt (a): 12 N·m (1.2 kgf-m, 9.0 lb-
ft)

I2RH01150017-01

I5JB0A152011-01

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I2RH01150021-01

1E-19 Engine Lubrication System: For J20 Engine

Oil Pump Inspection

S6JB0A1526007

• Check outer rotor (3), inner rotor and oil pump cases

(1), (2) for excessive wear or damage.
If abnormal condition is found in above checks,
replace oil pump assembly.

• Check relief valve (4) for excessive wear or damage.

If abnormal condition is found in above checks,
replace oil pump relief valve set.

• Measure free length and tension of oil relief spring.

If the measured values of length or tension is less
than the specification, replace oil pump relief valve
set.

Oil relief spring

• Measure clearance of oil pump rotor and oil pump

case.

Radial Clearance
Check radial clearance between outer rotor (2) and case
No.1 (1), using thickness gauge (4).
If clearance exceeds its limit, replace oil pump assembly.

Limit on radial clearance between outer rotor and
case
0.20 mm (0.0079 in.)

Side Clearance
Using straightedge (5) and thickness gauge (4),
measure side clearance.
If side clearance exceeds its limit, replace oil pump
assembly.

Limit on side clearance
0.11 mm (0.0043 in.)

5. Relief spring
6. Retainer

Item

Standard

Spring free
length

63.5 mm (2.5 in.)

Spring
preload

85.0 N for 52.0 mm

(8.5 kg for 52.0 mm, 19.0 lb/2.05 in.)

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3. Inner rotor