1987 MAZDA 626 oil temperature

TUNE-UP PROCEDURE 1 B
High-Tension Lead
Check the following points. Clean or replace if
necessary.
1. Damaged lead
2. Carbon deposits
86U01X-014
i^rrr ' /
49 0187 280
76G01B-011
76G01B-012
Hydraulic Lash Adjuster (HLA)
Note
Tappet noise may occur if the engine is not
operated for an extended period of time. The
noise should stop after the engine has
reached normal operating temperature.
1. Check for tappet noise. If noise exists, check the
following points.
(1) Engine oil condition and level
(2) Engine oil pressure (Refer to Section 2A)
2. If the noise does not stop, check for movement of
each HLA by pushing it during disassembly.
3. If the HLA moves, replace the HLA. (Refer to page
1B—60.)
Ignition Timing
1. Warm up the engine and run it at idle.
2. Turn all electric loads OFF.
3. Connect a timing light tester.
4. Disconnect the vacuum hose from the vacuum
control, and plug the hose.
5. Check that the ignition timing mark (yellow) on the
crankshaft pulley and the timing mark on the tim-
ing belt cover are aligned.
Ignition timing: 12° ± 1° BTDC
(at idle speed)

76G01B-008

1B—8

INSTALLATION 1B
Connector Location
Install each harness as shown in the figure.
76G01B-112
1. IG coil 10. Linear solenoid
2. Heat gauge unit 11. Solenoid valve (idle speed control)
3. Speed sensor 12. Throttle position sensor
4. P/S switch 13. Injection harness
5. Engine ground 14. Transmission harness
6. Water temperature sensor 15. Alternator
7. Water thermo switch 16. Oil pressure switch
8. Crank angle sensor 17. Starter
9. Oxygen sensor
1B-79

1 C ON-VEHICLE MAINTENANCE (CYLINDER HEAD)
CYLINDER HEAD
Removal
1. Disconnect the negative battery cable.
2. Drain the engine coolant.
3. Remove in the sequence shown in the figure referring to the removal note for specially marked parts.
76G01C-031
1. Accelerator cable
2. Air cleaner
3. Brake vacuum pipe
4. Intercooler pipe and hose*
5. Drive belt cover
6. Vacuum pump drive belt
7. Fuel hose
8. Water temperature switch
connector
9. Glow plug connector
10. Water thermo switch con-
nector
11. Heat gauge unit connector
12. Boost air temperature sen-
sor connector*
13. Injection pipes
14. Upper radiator hose
15. Water hose
(thermostat—FIR)
16. Oil level gauge and stay
bolt
17. Oil pipe bolt
18. Timing belt (Refer to page
1C—11)
19. Cylinder head cover
20. Camshaft pulley
21. Rear camshaft pulley
76G01C-032
22. Injection pump pulley
23. Seal plate
24. Water hose and pipe
25. Comprex supercharger
drive belt*
26. Heat insulator*
27. Exhaust manifold stay
28. Front exhaust pipe
29. Cylinder head bolt
30. Cylinder head
31. Cylinder head gasket
32. Comprex supercharger*
33. Exhaust manifold
34. Intake manifold
Note
* marked parts are equipped only for the RF-CX.
1C-16

INSTALLATION 1C
Heater Hose
Connect the heater hoses.
Note
Position the hose clamp in the original loca-
tion on the hose and squeeze the clamp lightly
with large pliers to ensure a good fit.
86U01X-221
Connector Location
Install each harness as shown in the figure.
1. Alternator
2. Boost air temperature sensor (RF-CX)
3. Heat gauge unit
4. Water thermo switch
5. Pick up coil
6. Glow cord
7. Front harness connector and ground
76G01C-222
8. Fuel cut valve
9. Oil pressure switch
10. Starter
11. Water temperature switch
12. Transaxle harness
13. Grounds
1C—95

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

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

Diaphragm

Intake air temperature
Water thermo switches*2 Vacuum switch*2 E/L switches*2 Inhibitor switch*2 Ignition coil
Fuel pump
Water thermo
switch*2
(on radiator)
*1 MTX
*2 Except F6
*3 F6
*4 Except F8 ATX and F6
*5 F6 MTX
*6 Except F8 ATX and F6 ATX
*7 F8 MTX and FE

4 A IGNITION TIMING CONTROL SYSTEM
IGNITION TIMING CONTROL SYSTEM
F8 and FE (12-VALVE)—ATX (ECE, Singapore, and Hong Kong)
Ignition coil
76G04A-160
This system consists of the distributor, solenoid valve, and several switches, vacuum to the vacuum
control unit of the distributor is cut when the conditions below are met.
Item Condition
Engine speed Below 2,300 rpm
Selector lever position Other than P and N range
Coolant temperature Engine coolant: below 72°C (162°F) Radiator coolant: above 17°C (65°F)
4A—80