1987 MAZDA 626 Workshop Manual

DISASSEMBLY (TIMING BELT) 1 C
76G01C-246
76G01C-078
76G01C-247
Disassembly Note
Crankshaft pulley
1. Set the SST against the flywheel.
2. Remove the crankshaft pulley.
Timing belt
1. Draw a direction arrow in the direction of engine
revolution on the timing belt, if the timing belt is to
be reused.
2. Loosen the timing belt tensioner bolt.
3. Shift the tensioner outward as far as possible and
temporarily tighten it.
4. Remove the timing belt, tensioner and spring.
Caution
Do not allow any oil or grease on the timing
belt.
5. Turn the crankshaft about 45° from the timing mark
which is marked on the oil pump housing.
76G01C-079
1C-37

1 C DISASSEMBLY (TIMING BELT)
Injection pump pulley
1. Put two bolts of 35—40 mm (1.4—1.6 in) length
into the arms of the injection pump pulley and af-
fix them in the threaded hole of the injection pump
bracket.
2. Loosen the injection pump pulley lock bolt.
3. Separate the injection pump pulley from the injec-
tion pump shaft with the SST.
Camshaft pulley
1. Hold the camshaft with a wrench (29 mm, 1.14 in)
and loosen the camshaft pulley lock bolt.
Caution
Do not damage the cylinder head edge with
the wrench.
2. Separate the camshaft pulley from the camshaft
with the SST.
Caution
Do not hit the camshaft pulley with a hammer.
Rear camshaft pulley
Remove the rear camshaft pulley in the same man-
ner used for camshaft pulley.
4BG01B-087
76G01C-081
1C—38

DISASSEMBLY (INJECTION PUMP) 1 C
INJECTION PUMP
76G01C-082
1. No.3 engine mount and idler
2. Injection pipe
3. Injection pump
4. Oil level gauge and stay
5. Oil pipe
6. Fuel feed pipe
7. Oil pressure switch
8. Water pipe
9. Water pump
Disassembly Note
Injection pump
Remove the injection pump with its brackets.
If separate them, adjust the injection timing after in-
stalling the timing belt referring to Section 4D.
76G01C-083
1C-39

1 C DISASSEMBLY (CYLINDER HEAD)
CYLINDER HEAD
76G01C-079
1. Thermostat cover
2. Thermostat
3. Thermostat case
4. Front and rear engine
hanger
5. Fuel leak pipe
6. Injection nozzle
7. Glow cord
8. Glow plug
9. Camshaft cap
10. Oil seal
11. Camshaft
12. Cylinder head bolt
13. Cylinder head and gasket
14. Tappet and adjusting disc
15. Valve keepers
16. Upper spring seat
17. Valve spring
18. Valve
19. Lower spring seat
20. Valve seal
21. Valve guide and clip
1C-40

DISASSEMBLY (CYLINDER HEAD) 1 C
76G01C-085
76G01C-086
76G01C-087
A.
Disassembly Note
Camshaft
During disassembly, clean the bearings and journals,
and measure the following:
1. Camshaft end play. (Refer to page 1C—55)
2. Camshaft journal oil clearance . (Refer to page
1C—54)
Camshaft cap
Loosen the camshaft cap nuts in two or three steps
in the order shown in the figure.
Cylinder head bolt
1. Loosen the cylinder head bolts in two or three steps
in the order shown in the figure.
2. Remove the cylinder head by tapping the cylinder
head with a plastic hammer.
Adjusting disc and tappet
Remove the adjusting discs and tappets as a set.
Caution
All adjusting discs and tappets should be dis-
assembled in a way so that correct reassem-
bly can be performed.
4BG01B-094
1C—41

1 C DISASSEMBLY (CYLINDER HEAD)
Valve spring
Remove the valve, spring seats and valve keepers
from the cylinder head with the SST.
76G01C-088
Valve seal
After removing the lower spring seats, remove the
valve seals with the SST.
76G01C-089
Ball
_ Combustion
"X^ chamber
Glow plug hole
Combustion chamber insert
Caution
Do not remove the combustion chamber in-
sert as the cylinder head and the combustion
chamber insert are machined together, re-
place the combustion chamber insert and cyl-
inder head as an assembly.
76G01C-090
1C-42

DISASSEMBLY (CYLINDER BLOCK) 1 C
CYLINDER BLOCK—I
76G01C-091
1. Clutch cover
2. Clutch disc
3. Flywheel
4. End plate
5. Oil pan
6. Oil strainer
7. Stiffener (RF-CX)
8. Rear cover
9. Timing belt pulley
10. Oil pump assembly
Flywheel
1. Install the SST to the flywheel.
2. Remove the clutch cover, clutch disc and flywheel.
Timing belt pulley
1. Reverse the direction of the SST.
2. Remove the timing belt pulley.
76G01C-092
1C—43

1 C DISASSEMBLY (CYLINDER BLOCK)
Oil pan
1. Remove the oil pan mounting bolts.
2. Insert a scraper or a suitable tool between the oil
pan and the stiffener to separate them.
Caution
Do not bend the oil pan when prying loose.
3. Remove the oil pan.
86U01X-072
1C—44