1987 MAZDA 626 Workshop Manual

INSPECTION 2B
A
76G02B-006
INSPECTION
ENGINE OIL
1. Be sure the vehicle is on level ground.
2. Warm up the engine to normal operating temper-
ature and stop it.
3. Wait for five minutes.
4. Remove the oil level gauge and check the oil lev-
el and condition.
5. Add or replace oil if necessary.
Note
The distance between the L and F marks on
the level gauge represents 1.2 liters (1.26 US
qt, 1.05 Imp qt).
OIL PRESSURE
1. Disconnect the oil hose (vacuum pump—cylinder
block).
76G02B-007
2. Set the SST as shown.
3. Remove the vacuum pump drive belt to prevent
heat damage to bearing.
4. Warm up the engine to normal operating tem-
perature.
76G02B-008
5. Run the engine first at 1,000 rpm, then at 3,000
rpm and note the gauge reading.
Standard oil pressure kPa (kg/cm2, psi)

1,000 rpm 147-245 (1.5-2.5, 21-36)
3,000
rpm
343—441 (3.5-4.5, 50—64)

6. If the pressure is not as specified, check for the
cause, and repair if necessary.
(Refer to Troubleshooting Guide.)
76G02B-009
2B—5

2B
ENGINE OIL, OIL
FILTER
86U02X-006
76G02B-010
86U02X-008
ENGINE OIL
REPLACEMENT
1. Warm up the engine to the normal operating tem-
perature and stop it.
2. Remove the oil filler cap and the oil pan drain plug.
3. Drain the oil into a suitable container.
Warning
Be careful when draining, the oil is very hot.
4. Install the drain plug and a new gasket.
Tightening torque:
29—41 N-m (3.0—4.2 m-kg, 22—30 ft-lb)
5. Refill the engine with the specified type and amount
of oil.
6. Refit the oil filler cap.
Oil pan capacity:
5.0 liters (5.3 US qt, 4.4 Imp qt)
7. Recheck the oil level after the engine has been run.

OIL
FILTER
REPLACEMENT
1. Remove the oil filter with a suitable wrench.
2. Use a clean rag to wipe off the mounting surface
on the engine.
3. Apply a coat of engine oil to the filter rubber seal.
4. Install the oil filter until the rubber seal contacts the
oil cooler by hand. Then tighten it a 7/6 turn fur-
ther with a band type wrench.
5. Start the engine and inspect around the filter seal
for leaks.
6. Check the oil level and add oil if necessary.
Oil filter capacity:
0.50 liters (0.52 US qt, 0.44 Imp qt)
76G02B-011
2B—6

OIL
COOLER AND
OIL
FILTER BODY 2B

OIL
COOLER AND
OIL
FILTER BODY
REMOVAL
1. Disconnect the battery negative cable.
2. Drain the engine oil and coolant.
3. Remove in the sequence shown in the figure.
76G02B-012
76G02B-013
1. Idler pulley
2. Water hose
3. Connector bolt
4. Oil cooler
5. Oil filter
6. Oil filter cover
7. Oil filter body
8. Plug
9. Pressure spring
10. Plunger control
11. Relief valve spring
12. Steel ball
INSPECTION
1. Inspect the oil cooler body for cracks or corrod-
ed. If necessary replace it.
2. Check the valves for damage or scoring if neces-
sary replace it.
3. Measure free length of each valve spring. If neces-
sary replace it.
Free length
Relief valve spring: 45.5 mm (1.79 in)
Pressure spring : 54.6 mm (2.15 in)
76G02B-014
2B-7

2B
OIL
COOLER AND
OIL
FILTER BODY
76G02B-015
76G02B-016
INSTALLATION
1. Apply a coat of engine oil to the valve holes.
2. Install the relief valve spring and pressure spring.
Tightening torque:
20—29 Nm (2.0—3.0 m-kg, 14—22 ft-lb)
3. Clean the contact surfaces of the cylinder block
and oil filter body.
4. Install new O-rings and apply a coat of engine oil.
5. Install the oil filter body.
Tightening torque:
Bolt A: 8—11 N-m
(80—110 cm-kg, 69—95 in-lb)
Bolt B: 37—52 N-m
(3.8—5.3 m-kg, 27—38 ft-lb)
76G02B-017
6. Apply a coat of engine oil to the O-rings.
7. Install the oil cooler with new O-ring on the con-
nector bolt.
Tightening torque:
25—34 N-m (2.5—3.5 m-kg, 18—25 ft-lb)
8. Connect the water hoses.
9. Install the oil filter cover.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
10. Install the oil filter. (Refer to page 2B—6)
11. Install the idler pulley.
Tightening torque:
19—26 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
12. Install the Comprex supercharger drive belt and
adjust the belt deflection. (Refer to page 1C—7)
13. Add specified amount of coolant and engine oil.
14. Check for leaks.
76G02B-018
2B—8

OIL PAN 2B
OIL PAN
REMOVAL
1. Disconnect the negative battery cable.
2. Drain the engine oil and coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
76G02B-019
1. Sub frame
2. Gusset plate
3. Clutch housing
under cover
4. Water pipe
5. Oil pan
6. Oil strainer
7. Stiffener (RF-CX)
36—54 N-m (3.7-5.5 m-kg, 27—40 ft-lb)"
8—11 Nm (80—110 cm-kg 69—95 In-lb)
N-m (3.6—5.3 m-kg, 27—38 ft-lb)
(80—110 cm-kg, 69—95 in-lb)
76G02B-020
Removal Note
Oil pan
1. Remove the oil pan mounting bolts.
2. Insert a scraper or a suitable tool between the oil
pan and the stiffener to separate them.
3. Remove the oil pan.
4. Remove the oil strainer and stiffener from the
engine.
Caution
Do not bend the oil pan when prying loose.
76G02B-021
2B-9

2B OIL PAN
INSPECTION
Check the following points. Repair or replace if
necessary.
1. Cracks, deformation, damage
2. Damaged drain plug threads
4BG02X-037
76G02B-022
INSTALLATION
Install in the reverse order of removal referring to in-
stallation note.
Installation Note
Stiffener (RF-CX)
1. Remove any dirt or other material from the con-
tact surfaces.
2. Apply a continuous bead of silicone sealant to the
stiffener along the inside of the bolt holes, and over-
lap the end.
3. Install the stiffener.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
Oil Strainer
Install the oil strainer and a new gasket.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
76G02B-023
2B—10
Oil Pan
Remove any old sealant from the bolts and bolt holes.
If old sealant can not be removed from the bolt, re-
place it.
Without gasket
(1) Remove any dirt or grease from the contact
surfaces with a rag.
(2) Apply continuous bead of silicon sealant to the
oil pan along the inside of the bolt holes, and
overlap the ends.
(3) Install the oil pan.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)

OIL PAN 2B
With gasket
(1) Apply sealant to the shaded areas in the figure.
(2) Install the gasket and the oil pan.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
76G02B-025
2B-11

2B OIL PUMP
OIL PUMP
REMOVAL
1. Disconnect the negative battery cable.
2. Drain the engine oil and coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
76G02B-026
6. Oil pan (Refer to page 2B—9)
7. Stiffener (RF-CX)
8. Oil strainer
9. Oil pump
Removal Note
Timing belt pulley lock bolt
Hold the timing belt pulley with the SST and remove
the lock bolt.
1. Timing belt (Refer to page 1C—11)
2. Camshaft pulley (Refer to page 1C—36)
3. Injection pump pulley (Refer to page
1C—36)
4. Seal plate
5. Timing belt pulley
2B-12