1987 MAZDA 626 Exhaust

EXHAUST SYSTEM 4D
EXHAUST MANIFOLD
Removal and Installation
1. Remove in the sequence shown in the figure.
2. Install in the reverse order of removal.
3. Check for exhaust leakage.
Inspection
1. Check the exhaust manifold for cracks and
damage.
2. Inspect the flatness of the mounting surface using
the straight edge and a feeler gauge. Replace if
necessary.
Distortion: 0.05 mm (0.002 in) max.
1. Comprex supercharger (Refer to page 4D—13.: only RF-CX)
2. Exhaust manifold
4D—19

EXHAUST SYSTEM 4D
EXHAUST PIPE AND MAIN SILENCER
Removal and Installation
1. Remove in the sequence shown in the figure.
2. Install in the reverse order of removal.
3. Check for exhaust leakage.
64—89 N-m
37—52 N-m (3.8—5.3 m-kg, 27—38 ft-lb)
76G04D-045
1. Front exhaust pipe bracket 4. Silencer hanger
2. Front exhaust pipe 5. Middle pipe
3. Pre-silencer 6. Main silencer
4D—20

REMOVAL 7A
RF-N and RF-CX
1. Battery
2. Air cleaner assembly
3. Vacuum hose
4. Intercooler pipe and hose
(RF-CX)
5. Electric fan
6. Speedometer cable
7. Ground(s)
8. Clutch release cylinder
9. Pressure and return hoses
(power steering)
10. Starter
11. Wheel
12. Splash shield
13. Stabilizer
14. Joint shaft
15. Extension bar
16. Control rod
76G07A-011
17. Exhaust pipe bracket
18. Water pipe
19. Gusset plate (rear)
20. Gusset plate (front)
21. Under cover
22. Engine mount No.4
23. Engine mount No.2
24. Crossmember
7 A—13

REMOVAL 7B
REMOVAL
PRECAUTION
(1) Drain the ATF before removal.
(2) Jack up the vehicle and support it with safety stands after attaching the engine support.
Components
1. Battery
2. Battery carrier
3. Main fuse block
4. Distributor lead
5. Air flow meter connector
(G4A-EL)
6. Air cleaner assembly
(G4A-EL)
7. Air cleaner hose (G4A-EL)
8. Fresh air duct (G4A-HL)
9. Speedometer cable
10. Connectors
11. Grounds
12. Selector cable
13. Throttle cable
14. Front wheels
15. Splash shields
16. Oil cooler outlet and inlet
hoses
17. Tie-rod ends
18. Stabilizer bar control links
19. Lower arm ball joints
20. Driveshaft
21. Joint shaft bracket
76G07B-106
22. Joint shaft and driveshaft
23. Exhaust pipe bracket
24. Gusset plates
25. Under cover
26. Torque converter nuts
27. Manifold bracket (G4A-EL)
28. Starter
29. Engine mount No.4
30. Engine mount No.2
31. Crossmember and left side
lower arm
32. Transaxle
7B—83

7B REMOVAL
76G07B-115
o ' ...
Exhaust pipe
hanger..
Gasset plate —
76G07B-116
23. Install the SST into the differential side gears.
Caution
Failure to install the SST may allow the
differential side gears to become misaligned.
24. Remove the exhaust pipe hanger and gusset
plates.
25. Remove the under cover.
26. Remove the torque converter nuts.
27. Remove the manifold bracket. (G4A-EL)
28. Remove the starter.
76G07B-117
49 G017 5A0
29. Suspend the engine with the SST.
76G07B-118
7B-86

INSTALLATION 7B
6. Install the crossmember and the left side lower arm
as an assembly.
Tightening torque:
Bolt
36—54 Nm (3.7—5.5 m-kg, 27—40 ft-lb)
Nut
75—93
N
m (7.6—9.5 m-kg, 55—69 ft-lb)
7. Install the jack and the rope.
8. Remove the SST.
86U07B-445
86U07B-446
9. Install the starter and harnesses.
Tightening torque:
® 9.8—12 N-m
(100—120 cm-kg, 87—104 in-lb)
(|)31—46 N-m
(3.2—4.7 m-kg, 23—34 ft-lb)
10. Install the manifold bracket.
Tightening torque:
©19—30 N-m
(1.9—3.1 m-kg, 14—22 ft-lb)
(6)37—52 N-m
(3.8—5.3 m-kg, 27—38 ft-lb)
11. Install the torque converter nuts.
Tightening torque:
43—61
N
m (4.4—6.2 m-kg, 32—45 ft-lb)
12. Install the end plate.
Tightening torque:
8—11 Nm (80—110 cm-kg, 69—95 in-lb)
86U07B-447
13. Install the gusset plates and exhaust pipe hanger.
Tightening torque:
Gasset plate
37—52 N-m (3.8—5.3 m-kg, 27—38 ft-lb)
Exhaust pipe hanger
19—25 N-m (1.9—2.6 m-kg, 14—19 ft-lb)
7B-217

TROUBLESHOOTING
7C

ON VEHICLE -OFF VEHICLE
-

\ Inspection point
\
and
reference
\ page
Condition


in cd
ra
CM CM CM
I
I I
o
o o
I—
r~—
r—
7C—27
7C—23,24
Section
4A

7C—14
7C—20,22
7C-75

CM
0>
[—
CO
LO I
I I
O
O O
r^ r—
Section

5
CD CM
O
in (D
s
I
I I
o
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r—
r^

w
CM
r-
m f-
I
I I
o
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r-— I—
r-—
7C—54
7C-71
7C—66,

98

7C-68,

71 \ Inspection point
\
and
reference
\ page
Condition

ATR

level
and
condition

Selector

lever

Inhibitor

switch
and
wiring

Vacuum

diaphragm
and
piping

Kick-down
solenoid,
kick-down
switch

and

wiring

Engine

idle

speed

and
condition
Engine
stall

speed

Fluid

pressure
(Line
and
governor)
Control
valves

Governor

valve
Band
servo

Transaxle

air
check
Ignition
switch
and

starter

Front
clutch

Rear

clutch

Brake

band

Low
and

reverse

brake
Oil
pump
Hydraulic
circuit

Torque

converter

One-way

clutch
Parking
linkage

Planetary

gear

Snift
sequence

Shifts from
1st to
2nd
or
2nd
to
3rd
in 1
range

Slipping

Practically
no
shift shock,
or
slip-page while 1st
to
2nd shifting 1
2 •
3
• •
•
4 5
•
7 6
• •
• ©
•
• ©
•
• •
•

Slipping

Pracatically
no
shift shock
or
slip-page while 2nd
to
3rd shifting 1
2 •
3
• •
•
4 5
•
7 6
•

Slipping

No shift shock
or
engine runaway
in 1 to 2
range shift 1
2 •
3
• 4
5
• 6
•
• 7
• •
• ©
•
© •
•
• •
•
Slipping

Engine runaway
or
slip when shifting
3rd to 2nd
1
• •
2
• •
•
3 4
•
5 6
• ®
• ©
•
• ®
•
• •
•

Slipping

Slippage evident when vehicle starts moving 1
2 •
5
• •
•
3 4
•
• 6
• •
• •
•
® ©
•
• •
•

Noise

Transaxle noisy
in P and N
range

Noise
Transaxle noisy
in D, 2, 1 and
R ranges •
(D •
•
© •
•
© •
©

Others

No engine brake
in 1
range •
1 •
•
• •
•
2 3
•
• 4
• •
• •
©
• ©
•
• •
•

Others

Vehicle moves
in P
range
or
parking gear
not
disengaged when
P
range disengaged
•

Others
Transaxle overheats 3
4 5
•
2 6
• ®
©
(D ©
© ©
©
• •
©
Others

White smoke from exhaust while running 1
• •
2
• •
3
4 5
•
• 6
• ®
© ©
©
© ©
©
• •
@

Others

Abnormal odor from
oil
level gauge pipe ©
® ©
©
© ®
©
• •
©
76G07C-016
Differential
Problem Probable Cause Remedy Page
Noise Insufficient fluid Add 7C—25
Low fluid quality Replace with specified
ATF
7C-25
Worn bearing Adjust
or
replace 7C-79
Contact surface
of
gears worn Replace 7C-79
Tooth surface
of
gears damaged Replace 7C-79
Contaminated
ATF
Repair
or
replace 7C-25
Differential gear damaged, excessive backlash Replace 7C-79
Excessive bearing preload Adjust 7C—94
76G07C-017
7C—11

4-WHEEL STEERING GEAR AND LINKAGE 1 0
REMOVAL AND INSTALLATION
1. Jack up the vehicle and support it with safety stands.
2. Remove in the sequence shown in the figure, referring to the removal note for specially marked parts.
3. Install in the reverse order of removal, referring to installation note for specially marked parts.
4. Tighten all nuts and bolts to the specified torque, referring to page 10—39.
Note
The power steering fluid will leak out when the return hose or the pressure hose is discon-
nected. Prepare a suitable container for it to drain into.
Front Steering Gear
76G10X-034
9. Engine mount
10. Bolts and nut
11. Bolt
12. Bolt and mounting
13. Bolts and mounting
14. Stabilizer
15. Bolt
16. Front steering gear assembly
1. Pipes
2. Bolt
3. Exhaust pipe
4. Under cover
5. Shaft (Refer to next page)
6. Nuts retainer and bushing
7. Bolt, retainer and bushing
8. Nuts
10—37