1987 MAZDA 626 lock

1B TUNE-UP PROCEDURE 1 B
86U01X-008
Coolant Level (Cold engine)
1. Check that the coolant level is near the radiator inlet
port.
2. Check that the level in the coolant reservoir is be-
tween the FULL and LOW marks.
Add coolant if necessary.
Warning
a) Never remove the radiator cap while the en-
gine is hot.
b) Wrap a thick cloth around the cap and care-
fully remove it.
Drive Belt
1. Check that the drive belt is positioned in the pul-
ley groove.
2. Check the drive belt for wear, cracks, or fraying.
Replace if necessary.
3. Check the drive belt tension by using the tension
gauge.
Standard belt tension N (kg, lb)
76G01B-006

Belt New Used
Alternator 589-785 (60-80, 132-176) 491-687 (50-70, 110-154)
P/S 687-883 (70-90,154-198) 589-785 (60-80.132-176)
A/C 687-883 (70-90,154-198) 589-785 (60-80,132-176)

76G01B-007
Adjusting bolt
76G01B-008
4. Check the drive belt deflection by applying moder-
ate pressure (98 N, 10 kg, 22 lb) midway between
the pulleys.
(1) Alternator belt deflection
New : 6—8 mm (0.24—0.31 in)
Used: 7—9 mm (0.27—0.35 in)
If necessary, loosen the alternator mounting
bolts and adjust the belt deflection by turning
the adjusting bolt.
Tightening torque
®: 31—46 Nm (3.2—4.7 m-kg, 23—34 ft-lb)
(§): 37—52 Nm (3.8—5.3 m-kg, 27—38 ft-lb)
(2) P/S belt deflection
New : 8—10 mm (0.31—0.39 in)
Used: 9—11 mm (0.35—0.43 in)
If necessary, loosen the idler pulley lock bolt
and adjust the belt deflection by turning the ad-
justing bolt.
Tightening torque of lock bolt:
37—52 N-m (3.8—5.3 m-kg, 27—38 ft-lb)
1B—6

1 B ON-VEHICLE MAINTENANCE (TIMING BELT)
3. Install the timing belt tensioner and spring. Tem-
porarily secure it with the spring fully extended.
Caution
Do not damage the pulleys when securing the
tensioner pulley.
76G01B-024
4. 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.
76G01B-025
5. Loosen the tensioner lock bolt.
6. Turn the crankshaft twice in the direction of rota-
tion, and align the mating marks.
7. Check that the timing marks are correctly aligned.
If not aligned, remove the timing belt tensioner and
timing belt, and repeat steps 1—6.
69G01B-027
8. Turn the crankshaft to align the "S" mark of the
right side camshaft pulley with seal plate mating
mark.
Tighten the timing belt tensioner lock bolt.
Tightening torque:
37—52 Nm (3.8—5.3 m-kg, 27—38 ft-lb)
76G01B-026
1B—14

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

1 B ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
Installation note
Cylinder head
1. Thoroughly remove all dirt and oil from the top of
the cylinder block with a rag.
2. Place a new cylinder head gasket in position.
86U01X-035
® © © (D ® 3. Set the cylinder head in place.
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
N
m (8.2—8.8 m-kg, 59—64 ft-lb)
86U01X-036
Cylinder head cover
1. Apply silicon sealant to the shaded area as shown
in the figure.
2. Install the cylinder head cover and gasket.
Tightening torque:
4—6 N-m (40—60 cm-kg, 35—52 in-lb)
76G01B-033
Timing belt
1. 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.
2. Install the timing belt. (Refer to TIMING BELT of
ON-VEHICLE MAINTENANCE.)
76G01B-034
1B—20

DISASSEMBLY (TIMING BELT) 1 B
Mark the
direction of
rotation
76G01A-121
76G01B-119
Disassembly Note
Crankshaft pulley
1. Set the SST against the flywheel.
2. Remove the crankshaft pulley.
Timing belt
1. Loosen the tensioner lock bolt, and remove the ten-
sioner spring.
2. Mark the timing belt rotation for proper reinstalla-
tion if it is reused.
3. Remove the timing belt.
Caution
Be careful not to allow oil or grease on the
belt.
Camshaft pulley
Remove the pulley lock bolt using a screw driver to
prevent the camshaft from turning.
76G01A-123
1B—27

1 B DISASSEMBLY (CYLINDER BLOCK)
CYLINDER BLOCK-I
76G01B-043
1. Clutch cover 6. Oil strainer
2. Clutch disc 7. Rear cover
3. Flywheel 8. Water pump assembly
4. End plate 9. Oil pump assembly
5. Oil pan 10. Oil jet
1B—30

DISASSEMBLY (CYLINDER BLOCK) 1 B
76G01B-044
Bolt hole
Oil pan • ,„
Cylinder block
76G01B-045
Disassembly Note
Clutch cover and flywheel
Remove the clutch cover and flywheel with the SST.
Oil pan
1. Remove the oil pan mounting bolts.
2. Install the bolt ©from the mounting bolt or 10 mm
(0.39 in) bolts in the specified bolt holes ©(both
sides).
3. Screw in the bolts gradually and alternately to re-
move the oil pan.
Caution
a) Do not pry the oil pan to prevent damaging
the contact surface.
b) Do not damage or scratch the contact sur-
face when removing the oil sealant.
4. Remove the oil pan.
1B—31

1 B DISASSEMBLY (CYLINDER BLOCK)
CYLINDER BLOCK-II
76G01B-046
1. Connecting rod cap
2. Connecting rod bearing
3. Connecting rod and piston
4. Clip
5. Piston pin
6. Piston ring
7. Main bearing cap
8. Crankshaft
9. Pilot bearing
10. Main bearing
11. Cylinder block
Disassembly Note
Connecting rod and cap
Before removing the connecting rod, clean the bear-
ing, connecting rod, and crank pin, and measure the
following points.
1. Connecting rod side clearance. (Refer to page
1B—53.)
2. Crankpin oil clearance. (Refer to page 1B—53.)
76G01B-047
1B—32