1987 MAZDA 626 fuel

1 B ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
CYLINDER HEAD
Removal
Warning: Release the fuel pressure. (Refer to Section 4C.)
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
1B—16

76G01B-034

1 B ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
1. Center cover
2. High-tension lead and spark plug
3. Accelerator cable
4. Air intake pipe assembly
5. Fuel hose
6. Upper radiator hose
7. Heater hose
8. Brake vacuum hose
9. Canister hose (Unleaded fuel)
10. Engine harness connector and ground
11. EGR pipe (Unleaded fuel)
12. A/C compressor and bracket
13. Exhaust manifold insulator
14. Exhaust pipe
15. Exhaust manifold
16. Intake manifold bracket
17. Intake manifold assembly
18. Distributor
19. Engine mount stay
20. Upper timing belt cover
21. Timing belt tensioner spring
22. Timing belt
23. Cylinder head cover
24. Cylinder head and gasket
76G01B-030
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.
86U01X-032
Timing belt
1. Before removing the timing belt, turn the crankshaft
to align the mating marks of the camshaft pulleys
with the seal plate timing mark.
Note
For intake side camshaft pulley, align "I"
mark.
For exhaust side camshaft pulley, align "E"
mark.
76G01B-031
2. Loosen the timing belt tensioner lock bolt.
3. Shift the tensioner outward as far as possible, then
temporarily tighten it.

76G01B-034

1B—17

1B REMOVAL
REMOVAL
Warning: Release the fuel pressure. (Refer to Section 4C.)
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.
76G01B-036
1B—22

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

DISASSEMBLY (AUXILIARY PARTS) 1 B
1. Oil level gauge
2. P/S oil pump bracket
3. EGR pipe(Unleaded fuel)
4. Exhaust manifold insulator
5. Exhaust manifold assembly
6. Coolant inlet pipe and bypass pipe
7. Engine hanger
8. Alternator
9. Alternator strap and bracket
10. Engine mount bracket
11. Center cover
12. Distributor and high-tension lead
13. Spark plug
14. Thermostat and thermostat cover
15. Intake manifold bracket
16. Intake manifold assembly
17. Oil filter
18. Oil cooler
19. Oil pressure switch
76G01B-039
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49 G030 D05A
76G01A-120
Disassembly Note
Engine hanger
Remove the exhaust manifold; then connect the SST
to the engine.
69G01X-000
1B—25

INSPECTION AND REPAIR 1 B
-Angle limit
76G01B-057
86U01X-092
76G01B-058
Angle
Outer: 1.4 mm (0.055 in) max.
Inner: 1.3 mm (0.051 in) max.
Camshaft
1. Set the front and rear journals on V-blocks.
Check the camshaft runout. Replace if necessary.
Runout: 0.03 mm (0.0012 in) max.
2. Check the cam for wear or damage. Replace if
necessary.
3. Check the cam lobe height at the two points as
shown in the figure.
Height:
45.055 mm (1.7738 in) Leaded fuel
45.052 mm (1.7737 in) Unleaded fuel
Minimum:
44.855 mm (1.7659 in) Leaded fuel
44.852 mm (1.7658 in) Unleaded fuel
4. Measure wear of the journals in X and Y directions
at the two points as shown in the figure.
Diameter:
29.940—29.965 mm (1.1787—1.1797 in)
Out-of-round: 0.05 mm (0.002 in) max.
76G01B-059
1B-39

1 B ASSEMBLY (AUXILIARY PARTS)
Exhaust Manifold Assembly
1. Place the new gaskets in position with the ridge
facing the cylinder head.
2. Install the exhaust manifold assembly.
3. Tighten the nuts in two or three steps.
Tightening torque:
34—49
N
m (3.5—5.0 m-kg, 25—36 ft-lb)
76G01B-105
Exhaust Manifold Insulator
Install the exhaust manifold insulator.
Tightening torque:
19—30 Nm (1.9—3.1 m-kg, 14—22 ft-lb)
EGR Pipe (Unleaded fuel)
Install the EGR pipe.
Tightening torque:
34—44 N-m (3.5—4.5 m-kg, 25—33 ft-lb)
76G01B-106
P/S Oil Pump Bracket
Install the P/S oil pump bracket.
Tightening torque:
37—63 N-m (3.8—6.4 m-kg, 27—46 ft-lb)
86U01X-178
1B—72

1 B INSTALLATION
Clutch Release Cylinder
1. Set the pipe bracket in position.
Tightening torque:
8—11 N-m (80—110 cm-kg, 69—95 in-lb)
2. Install the clutch release cylinder.
Tightening torque:
19—25 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
76G01B-110
Speedometer Cable
Install the speedometer cable.
Brake Vacuum Hose
Connect the brake vacuum hose.
Canister Hose (Unleaded fuel)
Connect the canister hoses.
76G01B-111
1B-78