timing MAZDA 626 1987 Workshop Manual

7B INSPECTION AND REPAIR
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm
(in) Wire dia.
mm (in)
Spring color
1-2 accumulator small spring 11.0 (0.433) 88.1 (3.348) 1.4 (0.055) Gray
1-2 accumulator large spring 16.0 (0.630) 78.0 (3.071) 2.0 (0.079) Blue
Bypass, Servo control spring 5.0 (0.197) 33.4 (1.315) 0.55 (0.022) Maroon
2-3 timing spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

N-R accumulator rear spring 11.1 (0.437) 62.0 (2.441) 1.2 (0.047) Light green
N-D accumulator front spring 9.8 (0.386) 52.9 (2.083) 1.0 (0.039) Brown
Coasting bypass spring 5.8 (0.228) 37.7 (1.484) 0.6 (0.024) Dark blue
3-2 timing spring 8.2 (0.323) 28.6 (1.126) 0.8 (0.031) Red
3-2 capacity spring 5.4 (0.213) 30.6 (1.205) 0.5 (0.020) White
Throttle relief ball spring 6.6 (0.260) 21.6 (0.850) 0.8 (0.031)
—
76G07B-151
Assembly
1. Install the 3-2 capacity valve, 3-2 capacity spring,
and stopper plug; then install the stopper pin.
2. Install the 3-2 timing valve, the 3-2 timing spring,
and retainer.
86U07B-280
3. Install the coasting bypass plug, coasting bypass
valve and coasting bypass spring.
4. Apply ATF to the O-rings, and install them to the
piston; then insert the N-R accumulator rear spring
and N-R accumulator piston.
5. Apply ATF to the O-rings, and install them to the
piston; then insert the N-D accumulator piston and
N-D accumulator front spring.
76G07B-152
7B—142

INSPECTION AND REPAIR 7B

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1(9
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86U07B-282
86U07B-283
86U07B-284
6. Install the N-R accumulator gasket and plate; then
tighten the plate.
Tightening torque:
6—8
N
m (66—80 cm-kg, 57—69 in-lb)
7. Apply ATF to the O-rings, and install them onto the
piston; then install the 1-2 accumulator piston and
1-2 accumulator springs.
8. Install the 1-2 accumulator gasket and plate; then
tighten the plate.
Tightening torque:
6—8 N-m (66—80 cm-kg, 57—69 in-lb)
9. Install the bypass spring, bypass valve, stopper
plug, and stopper pin.
10. Install the servo control spring, servo control valve,
stopper plug, and stopper pin.
11. Install the 2-3 timing valve, 2-3 timing spring, and
retainer.
86U07B-285
7B—143

7B INSPECTION AND REPAIR
Premain Control Body
Disassembly
Disassemble in the sequence shown in the figure.
®> 3C 28 3C n
6—fl N-m j'j. r{\\ (66—80 cm-kg, -- JJ/ 57—69 In-lb)

6
(66 57—69 In-lb)
i—8 N-m & /${)W 66—80 cm-kg, / /

""
® 38 m P (20) MljP&arSiSP©

At
Valve Location
N-R accumulator piston.
N-D accumulator piston.
Coasting bypass valve-
3-2 timing valve-
3-2 capacity valve-
1-2 accumulator piston
-OD release valve
Bypass valve
Servo control valve
2-3 timing valve
Low reducing valve
1. Retainer
2. Low reducing spring
3. Low reducing valve
4. Retainer
5. 2-3 timing spring
6. 2-3 timing valve
7. Stopper pin
8. Stopper plug
9. Servo control valve
10. Servo control spring
11. Stopper pin
12. Stopper plug
13. Bypass valve
14. Bypass spring
15. Stopper pin
16. Stopper plug
17. OD release valve
18. OD release spring
19. Bolt
20.1-2 accumulator plate
21.1-2 accumulator gasket
22.1-2 accumulator springs
23.1-2 accumulator piston
24.1-2 accumulator seal rings
25. Bolt
26. N-R accumulator plate
27. N-R accumulator gasket
28. N-R accumulator piston
29. N-R accumulator rear
spring
83U07B-285
30. N-R accumulator seal rings
31. N-D accumulator front
spring
32. N-D accumulator piston
33. N-D accumulator seal rings
34. Coasting bypass spring
35. Coasting bypass valve
36. Coasting bypass plug
37. Retainer
38. 3-2 timing spring
39. 3-2 timing valve
40. Stopper pin
41. Stopper plug
42. 3-2 capacity spring
43. 3-2 capacity valve
7B-160

INSPECTION AND REPAIR 7B
Inspection
Check the following and replace any faulty parts.
1. Damaged or worn valves
2. Damaged oil passage
3. Cracked or damaged valve body
4. Operation of each valve
5. Weakened spring
Spring

Spring name Outer dia.
mm
(in) Free length
mm (in)
Wire dia.
mm
(in) Spring color
1-2 accumulator small spring F8 engine 9.9 (0.400) 84.7 (3.335) 1.2 (0.047) Red
1-2 accumulator large spring
FE engine 13.0 (0.512) 73.2 (2.881) 1.8 (0.071) Pink 1-2 accumulator large spring F8 engine 16.0 (0.630) 84.7 (3.335) 2.0 (0.079) White
Bypass spring 5.0 (0.197) 25.1 (0.988) 0.7 (0.028) Yellow
Servo control spring 4.9 (0.193) 27.1 (1.067) 0.5 (0.020) Light blue
2-3 timing spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

N-R accumulator rear spring 11.1 (0.437) 68.2 (2.685) 1.0 (0.039) Blue
N-D accumulator front spring 9.8 (0.386) 60.9 (2.398) 1.1 (0.043) Yellow
Low reducing spring 8.7 (0.343) 38.3 (1.508) 0.9 (0.035) Black
OD release spring 6.0 (0.236) 32.6 (1.283) 0.6 (0.024) Orange
Coasting bypass spring 5.8 (0.228) 31.3 (1.232) 0.6 (0.024) Yellow
3-2 timing spring 8.2 (0.323) 28.55 (1.124) 0.8 (0.031) Maroon
3-2 capacity spring 5.55 (0.219) 30.5 (1.201) 0.55 (0.022) Light green
Throttle relief ball spring 6.6 (0.260) 20.3 (0.799) 0.8 (0.031) Light green

76G07B-165
Assembly
1. Install the 3-2 capacity valve, 3-2 capacity spring,
stopper plug, and stopper pin.
2. Install the 3-2 timing valve, 3-2 timing spring, and
retainer.
83U07B-287
3. Install the coasting bypass plug, coasting bypass
valve, and coasting bypass spring.
4. Apply ATF to the O-rings, and install them onto the
piston; then insert the N-R accumulator rear spring,
and N-R accumulator piston.
5. Apply ATF to the O-rings, and install them onto the
piston; then insert the N-D accumulator piston, and
N-D accumulator front spring.
83U07B-288
7B—161

INSPECTION AND REPAIR 7B
12. Install the 2-3 timing valve, 2-3 timing spring, and
retainer,
13. Install the low reducing valve, low reducing spring,
and retainer.
83U07B-293
7B—163

OD
IV) K>
2-4 brake band
—Coasting clutch pressure brake pressure
To oil cooler
N-R accumulator 12-3 accumulator
2-3 Timingr valve 18 Coasting bypass valve Bypass valve Servo control y valve (Blocked)
Pressure modifier valve (Blocked)
3-4 shift valve
Low reducing valve
Pressure regulator valve 3-2 timing valve 3-2 Icapacity valve
Manual valve
Throttle valve
Oil pump
• Throttle pressure
1 Throttle modulated pressure
• Line pressure
I Torque converter pressure Forward clutch pressure\^
Reverse clutch pressure—_____
1-2 accumulator
Throttle back-up valve (Blocked)
-j Throttle J modulator I valve
Apply side 9
Lock-up control valve
-< O
u >
o
o
J3 o
Q >
• m
-< o
3D >
C n
O
O
J3 o
a •C* > • m
-si
CD

-vj
ro ro CO
2-4 brake band
Throttle valve
Low and reverse brake pressure [-Coasting clutch pressure|
1-2 accumulator To oil cooler 3r4-Clytch pressure Lock-up control valve
N-R accumulator imulator -3 accumulator
[2-3 Timingf valve Coasting
Bypass valve J Servo control < x ]_ valve (Blocked)
Pressure modifier valve (Blocked)
Throttle modulator valve
Throttle back-up "valve (Blocked) Low reducing valve
Pressure regulator valve 3-2 timing valve 3-2
|
capacity valve
Throttle pressure
Throttle modulated pressure
Line pressure
Torque converter pressure
Forward clutch pressure
Reverse clutch pressure
) Oil pump

-Nl CD
(V) r\D cn
2-4 brake band
Release side-
Throttle valve
Low and reverse brake pressure Coasting clutch pressure!
•To oil cooler 3-4 clutch pressure:
N-R accumulator accumulator 12-3 accumulator
is [2-3 Timing! valve Coasting bypass valve Bypass valve Servo control * valve (Blocked)
£j] Pressure J modifier I valve x (Blocked)
3-4 shift
|
valve Lp-j Throttle
•
R» modulator I211 valve
Low reducing valve
19 Pressure regulator valve 20 3-2 timing valve sin L
1 n
in ^ * I
S

Manual valve 3-2 D capacity valve
Forward clutch pressure— ^
Reverse clutch pressure
1-2 accumulator
I Throttle pressure
i Throttle modulated pressure
| Line pressure
| Operating line pressure
] Torque converter pressure
Throttle back-up valve (Blocked)
Lock-up control valve
o
3D >
Z o m
to H D m > 3
X -<
D ZJ >
O
O
U O c
o >
• m
w

mm
2-4 brake band
Throttle valve
-Coasting clutch pressure| Low and reverse brake pressure
3-4 clutch pressure To oil cooler Lock-up control valve
accumulator N-R accumulator accumulator
valve Coasting bypass valve Bypass valve Servo control x x valve (Blocked)
Pressure modifier valve (Blocked)
Throttle modulator valve
1-2 shift valve
Low reducing valve
(Blocked)
19 Pressure regulator valve 3-2 timing valve 3-2 Jcapacity valve
Manual valve
Apply side
Forward clutch pressure^
Reverse clutch pressure^-
1-2 accumulator
I Oil pump
!•• Throttle pressure
l^M Throttle modulated pressure
i^B Line pressure
HH Operating line pressure
I i Torque converter pressure
Throttle back-up valve

CD
ro r\D -vi
2-4 brake band
Release side'
Low and reverse brake pressure /pasting clutch pressure
•To oil cooler issure Lock-up control valve
N-R accumulator imulator }2-3 accumulator
18 Coasting
11 Bypass valve Servo control x valve (Blocked)
Pressure modifier valve (Blocked)
Throttle JBij modulator 2i I valve
3-4 Shift valve
1-2 shift valve
Throttle back-up valve (Blocked) Low reducing valve
19 Pressure regulator valve 20 3-2 timing valve 3-2 capacity valve
Thrott e valve
Forward clutch pressure.
Reverse clutch pressure-^^
1-2 accumulator .
Apply side 9
Oil pump
| Throttle pressure
Throttle modulated pressure
IHH Line pressure
Operating line pressure
I I Torque converter pressure
Manual valve