MAZDA 626 1987 Workshop Manual

1 B ASSEMBLY (CYLINDER HEAD)
Valve spring
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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
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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

1 B ASSEMBLY (CYLINDER HEAD)
76G01B-088
Camshaft Cap
1. Apply liberal amount of clean engine oil to the cam
lobes and journals.
2. Apply silicon sealant to the front camshaft cap
surface.
3. Position the camshaft caps according to the cap
number and mark.
4. Install the camshaft caps. Tighten the bolts in two
or three steps in the order shown in the figure.
Tightening torque:
18—26 Nm (1.8—2.7 m-kg, 13—20 ft-lb)
Seal Plate
Install the seal plate.
Tightening torque:
8—12
N
m (80—120 cm-kg, 69—104 in-lb)
1B—62

ASSEMBLY (CYLINDER HEAD) 1 B
Cylinder Head Cover
1. Apply silicon sealant to the shaded area shown in
the figure.
2. Install the cylinder head cover.
Tightening torque:
4—6
N
m (40—60 cm-kg, 35—52 in-lb)
76G01B-092
1B—63

1 B ASSEMBLY (TIMING BELT)
TIMING BELT
Torque Specifications
47-65 N m (4.8—6,6 m-kg, 35—49
7—10 N-m (70—100 cm-kg, 61—87 in-ll'
12—17 Nm (1.25—1.75 m-kg, 109—152 in-lbj
167—167 N*m (16.0-17.0 m-kg, 116—123 tt-tti)
1B—64
69G01B-160

ASSEMBLY (TIMING BELT) 1 B
Camshaft Pulley
1. Install the camshaft pulley on the camshaft with the
dowel pin fit into the hole at the I mark (intake side)
and E mark (exhanst side).
76G01B-127
2. Tighten the camshaft pulley lock bolt.
Tightening torque:
47—65 Nm (4.8—6.6 m-kg, 35—48 ft-lb)
76G01A-141
3. Align the mating mark on the camshaft pulleys with
the alignment mark on the seal plate.
Note
For intake side camshaft pulley, align "I"
mark.
For exhanst side camshaft pulley, align "E"
mark.
76G01B-094
Timing Belt Pulley
1. Reverse the direction of the SST (ring gear brake).
2. Install the crankshaft key.
3. Install the timing belt pulley on the crankshaft.
Tightening torque: 157—167 N m
(16.0—17.0 m-kg, 116—123 ft-lb)
4. Release the ring gear brake.
5. Align the timing belt pulley and the pump body
alignment marks.
86U01X-160
1B—65

1 B ASSEMBLY (TIMING BELT)
69G01B-165
76G01B-095
79G01C-097
Timing Belt Idler Pulley
Install the timing belt idler pulley.
Tightening torque:
37—52 Nm (3.8—5.3 m-kg, 27—38 ft-lb)
Timing Belt Tensioner
1. Install the timing belt tensioner and tensioner
spring.
2. Tentatively secure the tensioner with the spring fully
extended.
Timing Belt
1. Install the timing belt so that there is no looseness
at the tension side, and at the two camshaft pulleys.
Caution
a) If the timing belt is being reused, it must be
reinstalled to rotate in the original direction.
b) Check that there is no oil, grease, or dirt on
the timing belt.
2. Loosen the tensioner lock bolt.
3. Turn the crankshaft twice in the direction of rotation.
4. Check that the mating marks are correctly aligned.
If not aligned, remove the timing belt and tension-
er, and repeat the above-mentioned procedure.
5. Turn the crankshaft to align the S mark of the right
side camshaft pulley with seal plate mating mark.
6. Tighten the timing belt tensioner lock bolt.
Tightening torque:
37—52
N
m (3.8—5.3 m-kg, 27—38 ft-lb)
76G01B-096
1B-66

ASSEMBLY (TIMING BELT) 1 B
76G01B-097
86U01X-163
7. Check the timing belt deflection. If the deflection
is not correct, loosen the tensioner lock bolt and
repeat steps 3—5 above. Replace the tensioner
spring if necessary.
Belt deflection:
7.5—8.5 mm (0.30—0.33 in)
/ 98 N (10 kg, 22 lb)
Baffle Plate
Position the baffle plate on the timing belt pulley.
Timing Belt Cover
Install the lower timing belt cover, upper timing belt
cover, and new gaskets.
Tightening torque:
7—10 Nm (70—100 cm-kg, 61—87 in-lb)
Crankshaft Pulley
Install the crankshaft pulley.
Tightening torque: 12—17 N-m
(1.25—1.75 m-kg, 109—152 in-lb)
69G01B-170
1B—67

DISASSEMBLY
(AUXILIARY PARTS) 1 B
AUXILIARY PARTS
Torque Specifications
37—63 N-m (3.8—6.4 m-kg, 27—46 ft-lb) 19—30 N-m (1.9—3.1 m-kg, 14—22 ft-lb)
85—117 N-m (8.7—11.9 m 63—86 ft-lb)
19—30 N-m (1.9—3.1 m-kg 14—22 ft-lb)
19—25 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
37—63 N-m (3.8—6.4 m-kg, 27—46 ft-lb)
34—49 N-m (3.5—5.0 m-kg, 25-36 ft-lb)
19—30 N-m (1.9—3.1 m-kg, 14-22 ft-lb)
37—52 N-m '(If (3.8—5.3 m-kg, | / 27—38 ft-lb)
19—30 N-m (1.9—3.1 m-kg, 14—22 ft-lb)
19—30 N-m (1.9—3.1 m-kg, 14—22 ft-lb)
34—44 N-m (3.5—4.5 m-kg, 25—33 ft-lb)
19—30 N-m (1.9—3.1 m-kg, 14—2 Z ft-lb)
86U01X-164
1B—68

ASSEMBLY (AUXILIARY PARTS) 1 B
Oil Pressure Switch
Install the oil pressure switch.
Tightening torque: 12—18 N-m
(1.2—1.8 m-kg, 104—156 in-lb)
76G01A-087
Oil Cooler
Install the oil cooler.
Tightening torque:
29—39 N-m (3.0—4.0 m-kg, 22—29 ft-lb)
Oil Filter
1. Apply a small amount of engine oil to the rubber
seal of the new filter.
2. Install the oil filter and tighten it by hand until the
rubber seal contacts the base.
3. Then tighten the filter
1
and 1/6 turn with a wrench.
76G01B-099
Intake Manifold Assembly
1. Place the new gasket in position.
2. Install the intake manifold assembly.
3. Tighten the nuts in two or three steps.
Tightening torque:
19—30 N-m (1.9—3.1 m-kg, 14—22 ft-lb)
86U01X-167
Intake Manifold Bracket
Install the intake manifold bracket.
Tightening torque:
19—30 N-m (1.9—3.1 m-kg, 14—22 ft-lb)
86U01X-168
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1B-69