1987 MAZDA 626 oil

OIL PUMP 2A
OIL PUMP
REMOVAL
1. Disconnect the negative battery cable.
2. Drain the engine oil.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts. 76G02A-015
DOHC
76G02A-016
1. Timing belt (Refer to Section 1B) 4. Timing belt pulley
2. Oil pan (Refer to page 2A—7.) 5. Oil pump
3. Timing belt pulley lock bolt
2A-9

2A OIL PUMP
SOHC
1. Timing belt (Refer to Section
1
A)
2. Oil pan (Refer to page 2k—1)
3. Timing belt pulley lock bolt
76G02A-017
4. Timing belt pulley
5. Oil pump
Removal Note
Timing belt pulley lock bolt
Hold the timing belt pulley with the SST and remove
the lock bolt.
76G02A-026
2 A—10

OIL PUMP 2A
DISASSEMBLY
Disassemble in the sequence shown in the figure. 69G02B-012
1. Pump cover
2. Outer gear
3. Inner gear
4. Pressure relief
valve
5. Oil seal
6. Oil pump body
76G02A-018
INSPECTION
(DOHC)
1. Check the following and replace any faulty parts.
(1) Distorted or damaged oil pump body or cover
(2) Worn or damaged plunger
(3) Weak or broken plunger spring
2. Measure the side clearance.
Clearance: 0.10 mm (0.004 in) max.
76G02A-019
3. Measure the tooth tip clearance.
Clearance: 0.18 mm (0.007 in) max.
69G02B-015
2A-11

2A OIL PUMP
86U02X-021
76G02A-020
76G02A-021
4. Measure the outer gear to pump body clearance.
Clearance: 0.20 mm (0.008 in) max.
(SOHC)
1. Check the following and replace any faulty parts.
(1) Distorted or damaged oil pump body or cover
(2) Worn or damaged plunger
(3) Weak or broken plunger spring
2. Measure the side clearance.
Clearance: 0.10 mm (0.004 in) max.
3. Measure the outer gear tooth tip and crescent
clearance.
Clearance: 0.35 mm (0.014 in) max.
4. Measure the inner gear tooth tip and crescent
clearance.
Clearance: 0.40 mm (0.016 in) max.
76G02A-022
2 A—12

OIL PUMP 2 A
76G02A-023
86U02X-022
76G02A-024
5. Measure the outer gear to pump body clearance.
Clearance: 0.20 mm (0.008 in) max.
ASSEMBLY
Assemble the pump as follows.
Oil Seal
1. Apply engine oil to the pump body and the out-
side of the new oil seal.
2. Press in the oil seal.
Pressure Relief Valve
1. Install the plunger and spring in the pump body.
2. Fit the snap ring.
Outer and Inner Gear
Install the gears to the pump body.
Oil Pump Cover
1. Apply thread locking compound to the cover
mounting screws' threads.
2. Attach the oil pump cover to the body.
Tightening torque:
6—9 N-m (60—90 cm-kg, 52—78 in-lb)
INSTALLATION
Install in the reverse order of removal referring to the
installation note.
Installation Note
Oil pump
1. Apply grease to a new O-ring and install it in the
oil pump body.
2. Apply silicon sealant to the shaded area as shown
in the figure.
3. Apply engine oil to the oil seal lip.
76G02A-027
2A-13

2B
LUBRICATION SYSTEM
(DIESEL)
OUTLINE 2B— 2
LUBRICATION CIRCUIT 2B— 2
SPECIFICATIONS 2B— 3
TROUBLESHOOTING GUIDE 2B— 4
INSPECTION 2B— 5
ENGINE OIL 2B— 5
OIL PRESSURE 2B— 5
ENGINE OIL 2B— 6
REPLACEMENT 2B— 6
OIL FILTER 2B— 6
REPLACEMENT 2B— 6
OIL COOLER AND OIL FILTER BODY 2B— 7
REMOVAL 2B— 7
INSPECTION 2B— 7
INSTALLATION 2B— 8
OIL PAN 2B— 9
REMOVAL 2B— 9
INSPECTION 2B—10
INSTALLATION 2B—10
OIL PUMP 2B—12
REMOVAL 2B—12
DISASSEMBLY 2B—13
INSPECTION 2B—13
ASSEMBLY 2B—14
INSTALLATION 2B—14
OIL JET 2B—15
REMOVAL 2B—15
INSPECTION 2B—15
INSTALLATION 2B—15
76G02B-001

2B OUTLINE
OUTLINE
LUBRICATION CIRCUIT
76G02B-002
1. Oil pump
2. Oil cooler
3. Combined oil filter
4. Oil jet
5. Vacuum pump
2B—2

OUTLINE 2B
SPECIFICATIONS
Item Engine model RF-CX RF-N

Lubrication system Force-fed
Type Trochoid gear
Oil pump Gear width mm (in) 7 (0.28)
Regulated pressure kPa (kg/cm2,
psi)
510-618 (5.2 -6.3, 74—90)
Oil filter
Type Combined, paper element
Oil filter
Relief pressure differential kP (kg/cm2,
psi)
78-118 (0.8--1.2, 11-17)
Oil cooler Type Water cooled, 10 layer Water coold,
4
layer
Oil filter body
Regulated pressure kPa (kg/cm2,
psi)
402—481
(4.1
-4.9, 58—70)
Oil filter body
Oil cooler relief pressure differential kPa (kg/cm2, psi) 177-216 (1.8 -2.2, 26-31)
Oil warning lamp activation pressure kPa (kg/cm2,
psi)
29 (0.3, 4.3)
Oil capacity
Total (dry engine)
Oil pan
Oil filter
liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

6.1 (6.4, 5.4)
5.0 (5.3, 4.4)
0.5 (0.52, 0.44)
Engine oil type API service CD CC,
CD
76G02B-003
Recommended SAE Viscosity
CC) Temperature
—30 —20 —10 0 10 20 30 40 50 i i i i i i i ii CC) Temperature i i II i i i i —20 0 20 40 60 80 100 120
Engine oil
5W-30 >
Engine oil
< 10W-30 >
< 20W-20 >
< 15W-40 >
Engine oil
Engine oil
Temperature range anticipated before next oil change, °C(°F)
76G02B-004
2B-3