1987 MAZDA 626 engine oil capacity

U1
Interval
Procedure & item
Number of Months or km, whichever corns first
©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item
Months — 6 12 18 24 30 36 42 48 ©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item

x 1000 Km
1 10 20 30 40 50 60 70 80 ©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item
Miles x
1000 0.6 6 12 18 24 30 36 42 48
©1 ©2 ©3 ©4 Service data and inspection point Page
Battery electrolyte level and specific gravity A A A A O o O O • Electroyte level • Specific gravity 5-8
Drive belts A A A A A O 0 o O • Cracks or damage • Tension

1
A—7
1B—6
1C-7
Engine timing belts Replace every 100,000 Km o o o o — 1A—14 1B—11 1C—11
Engine valve clearance A A A A A o X X o
• Valve clearance: F8 (Hot engine) IN: 0.30 mm (0.012 in) EX: 0.30 mm (0.012 in) FE-12-valve, FE (DOHC) IN: 0; Maintenance free EX: 0; Maintenance free RF-CX, RF-N (Cold engine) IN: 0.25 mm (0.010 in) EX: 0.35 mm (0.014 in)
1A-10
1C—85
Intake and exhaust manifold nuts and
bolts T T T o o X X
• Retighten the intake and exhaust manifold nuts
N-m (m-kg, ft-lb)

1
A—86 1B—68 1C—89
Intake and exhaust manifold nuts and
bolts T T T o o X X IN EX
1
A—86 1B—68 1C—89
Intake and exhaust manifold nuts and
bolts T T T o o X X F8, FE 19-30 (1.9-3.1,
14-22)
22-28 (22—2.9, 16-21)

1
A—86 1B—68 1C—89
Intake and exhaust manifold nuts and
bolts T T T o o X X
RF-CX RF-N 16-23 (1.6-2,3,
12-17)
22-26 (2.2-2.7,
16-20)

1
A—86 1B—68 1C—89
Engine oil *2 R R R R R R R R R o o 0 o
• Oil pan capacity F8, FE: 3.6 liters (3.8 US qt, 3.2 Imp qt) RF-CX, RF-N:
5.0 liters (5.3 US qt, 4.4 Imp qt)
2A—6
2B-6
Oil filter *2 R R R R R R R R o o o o
• Oil filter capacity F8, FE 12-valve
0.3 liters (0.32 US qt, 0.26 Imp qt) FE (DOHC)
0.2 liters (0.21 US qt, 0.18 Imp qt) RF-CX, RF-N
0.4 liters (0.42 US qt, 0.35 Imp qt)
2A—6
2B-6
Fuel filter (R) for carbretor model (R) R (R) R o 0 o o — 4A—37

Interval
Procedure & item
Number of Months or km, whichever corns first
Months

x
1000
Km
Miles x 1000
0.6
6
10
12
20
12
18
30
18
24
40
24
30
50
30
36
60
36
42
70
42
48
80
48
®3 ©4 Service data and inspection point Page
m z >
z o m
H >
00 I-m
m o m
c 3 a to Qt (0 O
A
Battery electrolyte level and specific gravity O o o o Electroyte level Specific gravity 5-8
Drive belts O O o o Cracks or damage Tension

1
A—7
1B-6
1C-7
Engine timing belts Replace Severy 100,000 Km O O o o
Engine valve clearance
Intake and exhaust manifold nuts and bolts
O
O
o o
Valve clearance: FE-8-valve (Hot engine) IN: 0.30 mm (0.012 in) EX: 0.30 mm (0.012 in) FE (DOHC)
IN: 0; Maintenance free EX: 0; Maintenance free RF-CX, RF-N (Cold engine) IN: 0.25 mm (0.010 in) EX: 0.35 mm (0.014 in)
O IN EX
FE FE DOHC 19-30(1.9-3.1,
14-22)
22-28 (2.2-2.9
16-21)
1A—14 1B—11 1C-11

1
A—10
1C-85
Retighten the intake and exhaust manifold nuts
N-m (m-kg, ft-lb)
1A—86
1B—68 CO 0 1 m o
m a
H m
o m
Engine oil O
Oil filter O
O o o
Oil pan capacity FE: 3.6 liters
(3.8 US qt, 3.17 Imp qt) RF-CX, RF-N: 5.0 liters (5.3 US qt, 4.4 Imp qt)
O o o
Oil filter capacity FE 8-valve
0.3 liters (0.32 US qt, 0.26 Imp qt) FE (DOHC)
0.2 liters (0.21 US qt, 0.18 Imp qt) RF-CX, RF-N
0.4 liters (0.42 US qt, 0.35 Imp qt)
2A-6
2B-6
2A-6
2B-6

Interval
Procedure & item
Number of Months or km, whichever corns first
©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item
Months — 6 12 18 24 30 36 42 48 ©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item

x
1000
Km
1 10 20 30 40 50 60 70 80 ©1 ©2 ©3 ©4 Service data and inspection point Page
Interval
Procedure & item
Miles x
1000 0.6 6 12 18 24 30 36 42 48
©1 ©2 ©3 ©4 Service data and inspection point Page
Choke system I I I I O O X X
• Carburetor linkage • Choke diaphragm • Choke valve clearance • Unloader system
4A—26
4A-34
4A-34
4A—33
Cooling system I I I I O O o o • Hoses for cracks or wear 3A-5 3B—4
Engine coolant (with reservoir) Reprace every 24 months O O o o • Coolant level 3 A—5 3B—4
Battery electrolyte level and specific gravity I I I I O o o o • Electrolyte level • Specific gravity 5—8
Engine timing belts *2 Replace every 100,000 km O o o o —
1A—14 1B—11 1C—11
Drive belts *4 A I I I I I I I I O o o o • Cracks or damage • Tension
1A—7
1
B—6 1C—7
Engine valve clearance
(1) For Gasoline engine (I) I (I) I (I) I (I) I
T
O o X o
• Valve clearance F6, F8, FE-8-valve (Hot engine) IN: 0.30 mm (0.012 in) EX: 0.30 mm (0.012 in) FE-12-valve, FE (DOHC) IN: 0; Maintenance free EX: 0; Maintenance free RF-N (Cold engine) IN: 0.25 mm (0.01 in) EX: 0.35 mm (0.014 in)
1A—10
1C—85
Exhaust manifold nuts and bolts T T
I
T o o X X
• Retighten the intake and exhaust manifold nuts
N-m (m-kg, ft-lb) 1A—86 1B—68 1C—89 Exhaust manifold nuts and bolts T T
I
T o o X X IN EX 1A—86 1B—68 1C—89 Exhaust manifold nuts and bolts T T
I
T o o X X
F6, F8, FE 19-30 (1.9-3.1, 14-22) 22-28 (2.2-2.9, 16-21)
1A—86 1B—68 1C—89 Exhaust manifold nuts and bolts T T
I
T o o X X
RF-N 16-23 (1.6-2.3,
12-17) 22-26 (2.2-2 7,
16-20)
1A—86 1B—68 1C—89
Engine oil *1 Replace every 5000 km or 6 months X X o o
• Oil pan capacity FE DOHC: 3.6 liters
(3.8 US qt, 3.2 Imp qt) RF-N: 5.0 liters
(5.3 US pt, 4.4 Imp qt)
2A-6
2B—6
m >
o m
H >
00 r~ m
a 2

Interval
Procedure & item
Number of Months or km, whichever corns first
Months
x 1000 Km
Miles x 1000
Engine oil
Oil filter
Fuel filter (R) only for carbretor
Fuel lines and hoses (I) only for Diesel
Spark plugs
Initial ignition timing
Idle speed (I) only for carbretor
0.6
(I)
6
10
(0
12
20
12
(R)
18
30
18
(I)
24
40
24
30
50
30
(I)
36
60
36
(R)
42
70
42
(I)
48
80
48
®1
O
o
o
o
o
o
o
©2
O
o
o
o
o
o
o
©3
O
o
o
o
o
o
©4
O
o
o
Service data and inspection point
Oil pan capacity F6, F8, FE 3.6 liters (3.8 US qt, 3.2 Imp qt)
Oil filter capacity F8, FE 12-valve (SOHC)
0.3 liters (0.32 US qt, 0.26 Imp qt)
FE (DOHC) 0.2 liters (0.21 US qt, 0.18 Imp qt) RF-N
0.4 liters (0.42 US qt, 0.35 Imp qt)
Fittings, connections and compo-
nents for leaks
Plug gap FE DOHC 0.7—0.8 mm (0.028-0.031 in) Others 0.75—0.85 mm (0.030—0.033 in) Recommended spark plugs
F6,F8,FE FE
12 VALVE,
DOHC
NGK BPR 5ES BPR 6ES BCPR 5E
BCPR 6E
Nippon
Denso W16EXR-U
W20EXR-U
Q16PR-U* Q20PR-U
Initial ignition timing F6 F8 FE (8 VALVE) (12 VALVE)
6 ±
1
° BTDC FE (DOHC) 12 ± 1° BTDC
Check the idle speed
MTX 80015? rpm
ATX F6 900 rpm (in "N" range) ATX F8, FE 900 t5? rpm (in "N" range)
FE DOHC 700—800 rpm
§ *Only FE 12 VALVE
Page
2A—6
2A-6
2B-6
4D—21
5-9
5-11
4A—38
4C-29
m z >
z o m
H >
CD I-m
T1
o
o (A O X m o c i-m o
m z >
z o m

2 A TROUBLESHOOTING GUIDE
SPECIFICATIONS
Engine model Item . FEDOHC F6, F8, FE SOHC
Lubrication system Force-fed
Oil pump
Type Trochoid gear Crescent gear
Oil pump Regulated pressure kPa (kg/cm2, psi) 490 (5.0, 71) 392 (4.0, 57) Oil pump
Oil pressure kPa (kg/cm2, psi)
1,000 rpm 147-245 (1.5-2.5, 21-36) Oil pump
Oil pressure kPa (kg/cm2, psi) 3,000 rpm 343—441 (3.5-4.5, 50-64) 294-392 (3.0-4.0, 43—57)
Oil filter Type Full-flow, paper element Oil filter Relief pressure differential kPa (kg/cm2, psi) 98 (1.0, 14)
Oil cooler Type Water cooled, 6-layer Water cooled, 4-layer
Oil warning pressure kPa (kg/cm2, psi) 29 (0.3, 4.3)
Oil capacity
Total (dry engine) liters (US qt, Imp qt) 4.3 (4.5, 3.8)
Oil capacity Oil pan liters (US qt, Imp qt) 3.6 (3.8, 3.2) Oil capacity
Oil filter liters (US qt, Imp qt) 0.2 (0.21, 0.18) 0.3 (0.32, 0.26)
Engine oil (API service) SD, SE, or SF
76G02A-003
Recommended SAE Viscosity
Temperature j0pj
-30 -20 -10 0 10 20 30 40 50 I l I I 1 < ! I I Temperature j0pj i i i i I i 1 1
-20 0 20 40 60 80 100 120
Engine oil Engine oil
5W-30 X 30 >
Engine oil Engine oil
5W-20 > < 20W-20 > < 40
Engine oil < 10W-30 > Engine oil
< 10W-40 10W-50
Engine oil Engine oil
< 20W-40 20W-50
Engine oil
Temperature range anticipated before next oil change, °C(°F)
TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy Page
Engine hard
starting
Improper engine oil
Insufficient engine oil
Replace
Add oil
2A— 5
2A— 5
Excessive oil con-
sumption
Oil working up or working down
Oil leakage
Refer to Section 1
Repair
Oil pressure drop Insufficient oil
Oil leakage
Worn or damaged oil pump gear
Worn plunger (inside oil pump) or weak spring
Clogged oil strainer
Excessive main bearing or connecting rod bearing
clearance
Add oil
Repair
Replace
Replace
Clean
Refer to Section 1
2A- 5
2A-11
2A-11
Warning lamp illu-
minated while en-
gine running
Oil pressure drop
Malfunction of oil pressure switch
Malfunction of electrical system
As described above
Refer to Section 15
Refer to Section 15
76G02A-004
2A—4

2A OIL FILTER, OIL COOLER
j
F

k
4

4. Install the drain plug and a new gasket.
5. Refill the engine with the specified type and amount
of oil.
6. Refit the oil filler cap.
Oil pan capacity:
3.6 liters (3.8 US qt, 3.2 Imp qt)
7. Recheck the oil level after the engine has been run.
76G02A-006
TbJ
r
86U02X-008
76G02A-007
0
A
if \ lO
/O
f \ 11 • V jJ
VJ f .fa,-
n D
©
76G02A-008
OIL FILTER
REPLACEMENT
1. Remove the oil filter with a suitable wrench.
2. Use a clean rag to wipe off the mounting surface
on the engine.
3. Apply a small amount of engine oil to the rubber
seal of the new filter.
Warning
Be careful that the engine and filter are very
hot.
4. (DOHC)
Install the oil filter until the rubber seal contacts the
base and then tighten the filter
1
and
1
/6 turn with
a wrench.
(SOHC)
Install the oil filter and tighten it by hand only. Do
not use a wrench.
5. Start the engine and inspect around the filter seal
for leaks.
6. Check the oil level and add oil if necessary.
Oil filter capacity:
0.20 liters (0.21 US qt, 0.18 Imp qt)...DOHC
0.30 liters (0.32 US qt, 0.26 Imp qt)...SOHC

OIL
COOLER

(DOHC, 12-valve,
ECE
8-valve)

REMOVAL AND INSTALLATION
Remove in the sequence shown in the figure.
Install in the reverse order of removal.
1. Water hose
2. Oil filter
3. Nut
4. Oil cooler
Nut tightening torque:
29—39
N
m (3.0—4.0 m-kg, 22—29 ft-lb)
2A-6

OUTLINE 2B
SPECIFICATIONS
Item Engine model RF-CX RF-N

Lubrication system Force-fed
Type Trochoid gear
Oil pump Gear width mm (in) 7 (0.28)
Regulated pressure kPa (kg/cm2,
psi)
510-618 (5.2 -6.3, 74—90)
Oil filter
Type Combined, paper element
Oil filter
Relief pressure differential kP (kg/cm2,
psi)
78-118 (0.8--1.2, 11-17)
Oil cooler Type Water cooled, 10 layer Water coold,
4
layer
Oil filter body
Regulated pressure kPa (kg/cm2,
psi)
402—481
(4.1
-4.9, 58—70)
Oil filter body
Oil cooler relief pressure differential kPa (kg/cm2, psi) 177-216 (1.8 -2.2, 26-31)
Oil warning lamp activation pressure kPa (kg/cm2,
psi)
29 (0.3, 4.3)
Oil capacity
Total (dry engine)
Oil pan
Oil filter
liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

liters (US qt, Imp
qt)

6.1 (6.4, 5.4)
5.0 (5.3, 4.4)
0.5 (0.52, 0.44)
Engine oil type API service CD CC,
CD
76G02B-003
Recommended SAE Viscosity
CC) Temperature
—30 —20 —10 0 10 20 30 40 50 i i i i i i i ii CC) Temperature i i II i i i i —20 0 20 40 60 80 100 120
Engine oil
5W-30 >
Engine oil
< 10W-30 >
< 20W-20 >
< 15W-40 >
Engine oil
Engine oil
Temperature range anticipated before next oil change, °C(°F)
76G02B-004
2B-3

2B
ENGINE OIL, OIL
FILTER
86U02X-006
76G02B-010
86U02X-008
ENGINE OIL
REPLACEMENT
1. Warm up the engine to the normal operating tem-
perature and stop it.
2. Remove the oil filler cap and the oil pan drain plug.
3. Drain the oil into a suitable container.
Warning
Be careful when draining, the oil is very hot.
4. Install the drain plug and a new gasket.
Tightening torque:
29—41 N-m (3.0—4.2 m-kg, 22—30 ft-lb)
5. Refill the engine with the specified type and amount
of oil.
6. Refit the oil filler cap.
Oil pan capacity:
5.0 liters (5.3 US qt, 4.4 Imp qt)
7. Recheck the oil level after the engine has been run.

OIL
FILTER
REPLACEMENT
1. Remove the oil filter with a suitable wrench.
2. Use a clean rag to wipe off the mounting surface
on the engine.
3. Apply a coat of engine oil to the filter rubber seal.
4. Install the oil filter until the rubber seal contacts the
oil cooler by hand. Then tighten it a 7/6 turn fur-
ther with a band type wrench.
5. Start the engine and inspect around the filter seal
for leaks.
6. Check the oil level and add oil if necessary.
Oil filter capacity:
0.50 liters (0.52 US qt, 0.44 Imp qt)
76G02B-011
2B—6