1987 MAZDA 626 ECU

1 B ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
69G01B-037
CP ® (9) (I)
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76G01A-111
4. Remove the timing belt and secure it out of the way
to prevent damage during removal and installation
of the cylinder head.
Cylinder head bolt
Loosen the cylinder head bolts in two or three steps
in the order shown in the figure.
Disassembly of Cylinder Head
Refer to page 1B—28.
Inspection of Cylinder Head
Refer to page 1B—34.
Assembly of Cylinder Head
Refer to page 1B—59.
76G01B-032
1B—18

REMOVAL 1B
1. Battery and battery carrier
2. Air cleaner assembly
3. High-tension lead
4. Accelerator cable
5. Fuel hose
6. Radiator hose
7. Radiator harness
8. Radiator and electric fan
9. EGI harness
10. Engine harness
11. Brake vacuum hose
12. Canister hose (Unleaded
fuel)
13. Heater hose
14. Transaxle harness
15. Speedometer cable
16. Clutch release cylinder
17. Drive belt
18. A/C compressor and
bracket
19. P/S oil pump
20. Engine side cover
21. Front wheel
22. Tie-rod end
23. Stabilizer control rod
24. Lower arm bushing
25. Driveshaft
26. Change rod
27. Extension bar
28. Exhaust pipe
29. Engine mount
30. Engine and transaxle
31. Transaxle
76G01B-037
Removal Note
Fuel hose
Warning
a) Cover the hose with a rag because fuel will
spray out when disconnecting.
b) Keep sparks and open flame away from the
fuel area.
Plug the disconnected hoses to avoid fuel leakage.
76G01A-11£
P/S pump, A/C compressor
Remove the P/S pump and A/C compressor with the
hoses still connected to them, secure the pump and
compressor as shown in the figure.
67U01X-029
Driveshaft
Remove the driveshafts. (Refer to Section 9.) Slide
the SST into the transaxle.
86U01X-060
1B—23

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

1B INSTALLATION
ENGINE INSTALLATION
Install the engine and transaxle assembly.
Warning: Be sure the vehicle is securely supported.
Torque Specifications
67—93
N m
(6.8—9.5 m-kg, 49—69 ft-lb)
85—117
N m
(8.7—11.9 m-kg, 63—86 ft-lb)
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
8-11 N-m (80—110 cm-kg, 69—95 In-lb)
[;> )
16—27
N-m
(1.6—2.8 m-kg, 12—20 ft-lb)
37—63 N-m (3.8—6.4 m-l 27—46 ft-ll
37—52 N-m (3.8—5.3 m-kg 27—38 ft-lb)
64—89 N-m (6.5—9.1 m-kg, 47—66 ft-lb)
36—54 N-m (3.7—5.5 m-kg, 27—40 ft-lb)
-31—46 N-m (3.2—4.7 m-kg, 23—34 ft-lb)
31—46 N-m (3.2-4.7 m-kg, 23—34 ft-lb)
39—59 N-m (4.0—6.0 m-kg, 29—43 ft-lb)
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
31—46 N-m (3.2—4.7 m 23—34 ft-lb)
19—25 N-m (1.9—2.6 m-kg, 14-
19—25 N-m (1.9—2.6 m
16—23 N-m (1.6—2.3 m-l
5—7 N-m (50—70 cm-kg, 43—61 in-lb)
-16—23 N-m (1.6—2.3 m-kg, 12—17 ft-lb)
9—13 N-m (90—130 cm-kg, 78—113 In-lb)
29—44 N-m (3.0—4.5 m-kg, 22—33 ft-lb)
,68—118 N-m .0—12.0 m-kg 65—87 ft-lb)
43-54 N-m (4.4—5.5 m-kg, 32-40 tl-lb)
8—11
N-m
(80—110 cm-kg, 69—95 In-lb)
86U01X-180
1B—74

1B INSTALLATION
86U01X-184
86U01X-185
86U01X-186
Driveshaft
1. Apply grease to the end of the driveshaft.
2. Install the driveshaft and a new clip.
Caution
a) When installing the driveshaft, be careful
not to damage the oil seal.
b) After installation, pull the front hub outward
to confirm that the driveshaft is securely
held by the clip.
Lower Arm
Install the lower arm ball-joint to the knuckle; then tight-
en the lock nut.
Tightening torque:
43—54 Nm (4.4—5.5 m-kg, 32—40 ft-lb)
Tie-Rod End
1. Install the tie-rod end to the knuckle.
Tightening torque:
29—44 Nm (3.0—4.5 m-kg, 22—33 ft-lb)
2. Install the cotter pin.
Stabilizer Control Rod
Install and adjust the front stabilizer control rods.
Dimension A: 20.1 mm (0.79 in)
Tightening torque: 16—23 Nm (1.6—2.3 m-kg, 12—17 ft-lb)
Install the front wheel.
Tightening torque:
88—118 Nm (9.0—12.0 m-kg, 65—87 ft-lb)

86U01X-180

1B—76

ON-VEHICLE MAINTENANCE (TIMING BELT) 1 C
2. Install the timing belt tensioner and spring.
3. Temporarily secure the tensioner with it shifted
outwards.
63G01D-330
4. Install the timing belt.
Caution
a) The timing belt must be reinstalled in the
same direction of previous rotation, if it is
to be reused.
b) Be sure that there is no oil, grease, or dirt
on the timing belt.
76G01C-024
Install the idler pulley.
Tightening torque:
37—52
N
m (3.8—5.3 m-kg, 27-38 ft-lb)
Remove the affixing bolts from the injection pulley.
76G01C-025
7. Loosen the tensioner lock bolt.
8. Turn the crankshaft twice in the direction of rota-
tion (clockwise).
Caution
Do not rotate reverse direction.
9. Check that each timing mark is correcty aligned.
If not aligned, remove the timing belt. Repeat step
1-8.

76G01C-030

1C-14

ON-VEHICLE MAINTENANCE (CYLINDER HEAD) 1 C
76G01C-049
Injection pipe
1. Check that no dirt or other foreign material is on
the pipe coupling.
2. Install the injection pipes.
Tightening torque:
25—29 Nm (2.5—3.0 m-kg, 18—22 ft-lb)
3. Install the pipe clip.
Tightening torque:
4—6 N-m (40—60 cm-kg, 35—52 in-lb)
Vacuum pump drive belt
1. Install the vacuum pump drive belt, and adjust the
belt deflection. (Refer to 1C—7)
2. Install the drive belt cover.
Tightening torque:
8—11 Nm (80—110 cm-kg, 69—95 in-lb)
3. Connect the vacuum hose securely and squeeze
the clamp lightly with pliers to ensure a good fit.
76G01C-050
Steps after installation
1. Fill the radiator with the specified amount and type
of coolant.
2. Perform the necessary engine adjustments. (Re-
fer to TUNE-UP PROCEDURE.)
76G01C-051
1C—23

1C REMOVAL
76G01C-244
76G01C-072
67U01X-029
Removal Note
Fuel hose
Warning
a) Cover the hose with a rag because fuel will
spray out when disconnecting.
b) Keep fire and open flame away from the fuel
area.
After disconnecting the fuel hoses, plug them to avoid
fuel leakage.
Clutch release cylinder
Remove the clutch release cylinder with the pipe still
connected; then avoid the cylinder.
P/S pump, A/C compressor
Remove the P/S pump and A/C compressor with the
hoses still connected to them, secure the pump and
compressor as shown in the figure.
Driveshaft
Remove the driveshafts. (Refer to Section 9.) Slide
the SST into the transaxle.
86U01X-060
1C-32