1992 MAZDA PROTEGE ignition

Bl ENGINE TUNE-UP PROCEDURE
13UOBi-036
-i
OWOBX-261
13UOBl-08
LOCK BOLTS
IGNITION TIMING, IDLE SPEED
Preparation
1, Warm up the engine to normal operating temperature.
2. Turn all electric loads OFF.
3. Connect the
SST to the diagnosis connector.
4. Connect the timing light.
5. Connect a tachometer to the diagnosis connector
IG- ter-
minal as shown.
6. Set switch @ to position 1.
7. Set TEST SW to SELF-TEST.
Note
l If the SST is not used, jump across the (TEN) ter-
minal and the (GND) terminal of the diagnosis con-
nector.
Ignition Timing
Inspection / Adjustment
1. Perform preparation. (Refer to above.)
2. Check if the timing mark (Yellow) on the crankshaft pulley
and the mark on the timing belt cover are aligned.
Ignition timing: (at idle speed)
B6 SOHC
BTDC 70 f 10 BP SOHC
5O f lo
3. If the marks are not aligned, loosen the distributor lock bolts
and turn the distributor to make the adjustment.
4. Tighten the distributor lock bolts to the specified torque.
Tightening torque:
19-25 N.m (1.9-2.6 m-kg, 14-19 ft-lb)
5. Disconnect the SST.
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13UOBl-039

Bl COMPRESSION
COMPRESSION
If the engine exhibits low power, poor fuel economy, or poor idle, check the following:
1. Ignition system (Refer to Section G.)
2. Compression
3. Fuel system (Refer to Section F.)
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23UOBl-06
23UOBl-014 23UOBl-012
INSPECTION
1. Check that the battery is fully charged. Recharge it if neces-
sary. (Refer to Section G.)
2. Warm up the engine to normal operating temperature.
3. Turn the engine OFF.
4. Remove all spark plugs.
5. Disconnect the ignition coil connector.
6. Connect a compression gauge to the No. 1 spark plug hole.
7. Fully depress the accelerator pedal and crank the engine.
8. Record the maximum gauge reading.
9. Check each cylinder.
Compression kPa (kg/cm*, psi)-rpm
10. If the compression in one or more cylinders is low, pour a
small amount of engine oil into the cylinder and recheck
the compression.
(1) If the compression increases, the piston, piston rings,
or cylinder wall may be worn.
(2) If the compression stays low, the valve may be stuck
or seating improperly.
(3) If the compression in adjacent cylinders stays low, the
cylinder head gasket may be defective or the cylinder
head distorted.
11. Connect the ignition coil connector.
12. Install the spark plugs.
05UOBX-020
Tightening torque:
15-23 N*m (1 S-2.3 m-kg, 11-17 ft-lb)
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ON-VEHICLE MAINTENANCE Bl
Steps After Installation
1. Connect the negative battery cable.
2. Start the engine and check as follows:
l Ignition timing. (Refer to page 91-8.)
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.
ON-VEHICLE MAINTENANCE
Installation note
Cylinder head bolt Bl
1. Apply clean engine oil to the bolt threads and seat faces.
2. Install the cylinder head bolts.
3. Tighten the cylinder head bolts in two or three steps in the
order shown in the figure.
Tightening torque:
76-61 N#m (7.7-6.3 m-kg, 56-60 f&lb)
Accelerator cable
1. Install the accelerator cable.
2. Check the accelerator cable deflection.
If the deflection is not correct, adjust by turning nut A.
Deflection: I-3mm (0.04-0.12 in)
Steps After Installation
1. Fill the radiator with the specified amount and type of engine coolant. (Refer to Section E.)
2. Connect the negative battery cable.
3. Start the engine and check as follows:
(1) Engine oil and engine coolant leakage.
(2) Ignition timing, idle speed. (Refer to page 81-8.)
(3) Operation of emission control system.
4. Recheck the engine coolant levels.
2311081-020
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Bl ON-VEHICLE MAINTENANCE
01 EOBX-056
23UOBi -0:
Steps After Installation
1. Lower the vehicle.
2. Connect the negative battery cable.
3. Start the engine and check the ignition timing.
(Refer to page 61-8)
Installation Note
Oil seal
1. Apply a small amount of clean engine oil to the lip of a new
oil seal.
2. Push the oil seal slightly in by hand.
Caution
l The oil seal must be tapped in until it is flush with
the edge of the oil pump body.
3. Tap the oil seal in evenly with a suitable pipe and a hammer.
Oil seal outer diameter: 50.5mm (1.98 in)
Timing belt pulley
1. Install the timing belt pulley.
2. Install the pulley woodruff key with the tapered side toward
the oil pump body.
Pulley lock bolt
1. Hold the crankshaft with the SST and tighten the pulley lock
bolt.
Tightening torque:
157-167 N*rn (16-17 m-kg, 116-123 ft-lb)
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ASSEMBLY Bl
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03UOB1.21 38
Injector and Distribution Pipe Assembly (BP SOHC)
1. Install the injector and distribution pipe assembly with new
insulators.
Tightening torque:
19-25 N-m (1.9-2.6 m-kg, 14-19 ft-lb)
Intake Manifold Assembly
1, Remove all foreign material from the intake manifold con-
tact surface.
2. Install a new gasket and the intake manifold assembly.
Tightening torque:
19-25 N*m (1.9-2.6 m-kg, 14-19 ft-lb)
Distributor and High-tension Lead
1. Apply engine oil to the O-ring, and position it on the dis-
tributor.
2. Apply engine oil to the blade.
3. Install the distributor with the blade fit into the camshaft
groove.
4. Temporarily, loosely tighten the distributor installing bolt.
5. Adjust the ignition timing after engine installation.
(Refer to Section G.)
6. Connect the high-tension leads.
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Bl INSTALLATION
Step 5
1. Connect the harness connectors shown in the figure.
GROUND ALTERNATOR
OIL PRESSURE SWITCH
I- THFOTTLE SENSOR
NEUTRAL SWITCH (MTX)
IGNITION COIL
$A_c_K;u_p LIGHT SWITCH
____------- ;
Step 6
Torque Specifications
7.8-11 N.m (80-110 cm-kg, 89-95 in-lb)
19-25 (1.9-2.6, 14-19)
2.9-5.9 N.m
(30-60 cm-kg, 26-52 in-lb)
7.8-11 N.m
(80-l 10 cm-kg,
6.4-9.3 N.m 37-52
(3.8-5.3, 27-38)
24-35
(2.4-3.6, 17-26)
7.8-11 N.m 160-110 cmika, 69-95 in-lb) ‘-- -- -..’ ‘-=’ -’ / 166-96 r?m.ka.
66-82 in-lb) 69-95 in-lb)
N.m (m-kg, ft-lb -- OBUOBl-1E
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INSTALLATION
OWOBX-27!
Resonance chamber
1. Install the resonance chamber.
Tightening torque:
7.8-l 1 N-m (80-I 10 cm-kg, 69-95 in-lb)
Undercover and side cover
1. Install the undercover and side cover.
Steps After Installation
1. If the engine oil was drained, fill with the specified amount and type of engine oil.
(Refer to Section D.)
Accelerator cable
1. Install the accelerator cable.
2. Adjust the cable deflection by turning nut @.
Deflection: I-3mm (0.04-0.12 in)
Battery duct, battery carrier, and battery
1. Install the battery duct.
Tightening torque:
7.8-l 1 N-m (80-l 10 cm-kg, 69-95 in-lb)
2. Install the battery carrier.
Tightening torque:
7.8-11 N.m (80-110 cm-kg, 69-95 in-lb)
3. Install the battery and the battery bracket.
Tightening torque:
2.9-5.9 N*m (30-60 cm-kg, 26-52 in-lb)
Air cleaner assembly
1. Install the air cleaner assembly.
lightening torque
@: 19-25 N-m (1.9-2.6 m-kg, 14-19 ft-lb)
@: 7.8-l 1 N-m (80-I 10 cm-kg, 69-95 in-lb)
2. Connect the airflow sensor connector.
2. Fill the radiator with the specified amount and type of engine coolant.
(Refer to Section E.)
3. If the transaxle oil was drained, fill with the specified amount and type of transaxle oil.
(Refer to Sections J, K.)
4. Connect the negative battery cable.
5. Start the engine and check the following
(1) Engine oil, transaxle oil, and engine coolant leakage.
(2) Ignition timing, idle speed. (Refer to page 61-8.)
(3) Operation of emission control system.
6. Perform a road test,
7. Recheck the engine oil and engine coolant levels.
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23UOBl-057
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