1987 MAZDA 626 Workshop Manual

1 B ASSEMBLY (CYLINDER BLOCK)
CYLINDER BLOCK—II
Torque Specifications
19—25 N m (1.9—2.6 m-kg, 14-19 ft-lb)
7—12 N'm (70—120 cm-kg, 61—104 in-lb)
69G01A-166
Rear Cover
1. Apply engine oil to the rear cover, oil seal and oil
seal lip.
2. Press the oil seal into the rear cover.
4BG01A-158
1B—54

ASSEMBLY (CYLINDER BLOCK) 1 B
3. Install the rear cover and a new gasket.
Tightening torque:
8—12 N-m (80—120 cm-kg, 69—104 in-lb)
86U01X-131
4. Cut away the portion of the gasket that projects out
from the rear cover assembly toward the oil pan
side.
Caution
Do not scratch the rear cover assembly.
86U01X-132
End Plate
Install the end plate.
Tightening torque:
19—30 Nm (1.9—3.1 m-kg, 14—22 ft-lb)
4BG01A-160
Oil Pump
1. Apply engine oil to a new oil pump oil seal and the
oil pump body.
2. Press the oil seal into the oil pump body.
79G01C-085
1B—55

1 B ASSEMBLY (CYLINDER BLOCK)
3. Apply engine oil to the oil seal lip.
4. Remove any dirt or other material from the con-
tact surfaces.
5. Apply a continuos bead of silicon sealant to the
contact surface of the oil pump.
Caution
Do not allow any sealant to get into the oil
hole.
86U01X-133
6. Install a new O-ring into the pump body.
7. Install the oil pump.
Tightening torque

(A):
19—25
N
m
(1.9—2.6 m-kg, 14—19 ft-lb)
(§): 37—52
N
m
(3.8—5.3 m-kg, 27—38 ft-lb)
8. Remove any sealant which has been squeezed
out.
76G01A-137
Oil Jet
Install the oil jet as shown in the figure.
Tightening torque: 12—18 Nm
(1.2—1.8 m-kg, 104—156 in-lb)
Caution
The shapes of the No.1, 3 cylinders jet valves
and No.2, 4 jet valves are different.
76G01B-079
Oil Strainer
Install the oil strainer and a new gasket.
Tightening torque:
8—12 Nm (80—120 cm-kg, 69—104 in-lb)
86U01X-136
1B—56

ASSEMBLY (CYLINDER BLOCK) 1 B
Oil Pan
1. Apply a continuous bead of silicon sealant to the
oil pan around inside of the bolt holes and over-
lap the ends.
2. Install the oil pan.
Tightening torque:
7—12 Nm (70—120 cm-kg, 61—104 in-lb)
Caution
Oil pan projection and recession from the end
of the cylinder block must not be more than
1.5 mm (0.06 in).
76G01 B-080
Flywheel
1. Remove any old sealant from the bolts and bolt
holes. If old sealant can not be removed from the
bolt, replace it.
2. Apply sealant to the bolt threads.
76G01B-081
3. Install, and tighten the flywheel with the SST.
Tightening torque:
96—103
N
m (9.8—10.5 m-kg, 71—76 ft-lb)
76G01B-082
Clutch Disc and Clutch Cover
Install the clutch disc and clutch cover using the SST.
(Refer to Section 6.)
Tightening torque:
22—32
N m
(2.2—3.3 m-kg, 16—24 ft-lb)
76G01 B-083
1B—57

1 B ASSEMBLY (CYLINDER BLOCK)
Water Pump
1. Remove all dirt, grease, and other material from
the water pump mounting surface.
2. Place a new O-ring in position.
Caution
Do not reuse the original O-ring.
86U01X-142
3. Install the water pump.
Tightening torque:
19—25 Nm (1.9—2.6 m-kg, 14—19 ft-lb)
7BU01B-103
1B-58

ASSEMBLY (CYLINDER
BLOCK)
1 B
CYLINDER HEAD
Torque Specifications
18—26 N-m (1.8—2.7 m-kg, 13—20 ft-lb)
8—12 Nm (80—120 cm-kg, 69—104 in-lb)
4—6 Nm (40—60 cm-kg, 35—52 In-lb)
69G01B-152
49 G012 002
Valve Seal
1. Apply engine oil to the inside of the new valve seal.
2. Install the valve seal onto the valve guide with the
SST

76G01 B-083

1B—59

1 B ASSEMBLY (CYLINDER HEAD)
Valve spring
®>®
Cylinder head side
76G01B-084
86U01X-145
76G01B-085
Valve and Valve Spring
1. Install the lower spring seat.
2. Install the valve.
3. Install the valve springs and the upper spring seat.
Note
Install the outer and inner valve spring with
the closer pitch toward the cylinder head.
4. Compress the valve spring with the SST; then in-
stall the valve keepers.
5. Tap the end of the valve stem lightly two or three
times with a plastic hammer to confirm that the
keepers are all fully seated.
Hydraulic Lash Adjuster (HLA)
1. Apply engine oil to the sliding surface.
2. Install the HLA in the position from which they were
removed.
3. Check for free movement.
76G01B-086
1B—60

ASSEMBLY (CYLINDER HEAD) 1 B
86U01X-146
© ® d> ®
® © ® © (D
86U01X-147
86U01X-148
Cylinder Head
1. Thoroughly remove all dirt, oil, or other material
from the top of the cylinder block.
2. Place the new cylinder head gasket in position.
3. Install the cylinder head.
4. Apply engine oil to the bolt threads and seat faces.
5. Tighten the cylinder head bolts in two or three steps
in the order shown in the figure.
Tightening torque:
80—86 Nm (8.2—8.8 m-kg, 59—64 ft-lb)
Camshaft
1. Apply a liberal amount of engine oil to the journals
and bearings.
2. Place the camshaft in position with the dowel pin
facing straight up.
Camshaft Oil Seal
1. Apply liberal amount of clean engine oil to the cam-
shaft oil seal and cylinder head.
2. Install the camshaft oil seal.
76G01B-087
1B-61