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Engine Technical Data [L5]: Notes

ENGINE TECHNICAL DATA

Item Specification
Idle speed (ATX: P, N position, MTX: Neutral position) 600-700 RPM
Ignition timing Approx. BTDC 12°
CO concentration Within the regulation
HC concentration Within the regulation
Idle-up speed (ATX: P, N position, MTX: Neutral position) A/C on and refrigerant pressure switch (middle pressure) is off: 600-- 700 RPM
A/C on and refrigerant pressure switch (middle pressure) is on: 750-- 850 RPM
Electrical loads on: 650-750 RPM (MTX), 600-750 RPM (ATX) While turning steering wheel: 650-750 RPM
Valve clearance [Engine cold] IN: 0.22-0.28 mm {0.009-0.011 in}
EX: 0.27-0.33 mm {0.011-0.012 in}
OCV coil resistance 6.9-7.9 ohms [20°C {68°F}]
Compression Standard: 1,324 kPa {13.50 kgf/cm2 , 192.0 psi}[300 RPM]
Minimum: 927 kPa {9.45 kgf/cm2 , 134 psi}[300 RPM]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2 , 28.5 psi}
Cylinder Head Bolt Length L 145.2-145.8 mm {5.717-5.740 in}
Cylinder Head Bolt Maximum 146.5 mm {5.767 in}
Engine oil capacity (approx. quantity) Oil replacement: 4.6 L {4.9 US qt, 4.0 Imp qt}
Oil and oil filter replacement: 5.0 L {5.3 US qt, 4.4 Imp qt}
Total (dry engine): 5.5 L {5.8 US qt, 4.8 Imp qt}
Oil pressure (reference value) [oil temperature: 100 °C {212 °F}] 395-649 kPa {4.03-6.61 kgf/cm2 , 57.3-94.1 psi} [3,000 RPM]
Engine coolant capacity (approx. quantity) 9.4 L {9.9 US qt, 8.3 Imp qt}
Cooling system cap valve opening pressure 93-123 kPa {0.95-1.25 kgf/cm2 , 14.0-17.8 psi}
Thermostat initial-opening temperature 80-64 °C {176-183 °F}
Thermostat full-open temperature 97 °C {207 °F}
Thermostat full-open lift More than 8.0 mm {0.31 in}
Fuel pressure 375-450 kPa {3.83-4.58 kgf/cm2 , 54.4-65.2 psi}
Fuel hold pressure 200 kPa {2.04 kgf/cm2 , 29.1 psi} or more
Fuel injector resistance 11.4-12.6 ohms [20 °C {68 °F}]
Battery electrolyte specific gravity [20 °C {68 °F}] 1.22-1.29
Battery back-up current (When the ignition is off (key is removed) and all doors are closed.) 50-65 mA
Generator standard voltage [IG-ON] Terminal B: B+
Terminal P: Approx. 1 V or less
Terminal D: Approx. 0 V
Generator standard voltage [Idle, 20 °C {68 °F}] Terminal B: 13-15 V
Terminal P: Approx. 3-8 V
Terminal D: Turn the electrical loads (headlights, blower motor, rear window defroster, brake lights, etc.) on and verify that the voltage reading increases.
Generator generated current minimum value 70% of the nominal output current (nominal output current: 100 A)
[Ambient temp. 20 °C {68 °F}, voltage 13.0-15.0 V, both engine and generator are hot]
Generator rotor resistance (between slip rings) [20 °C {68 °F}] 2.0-2.3 ohms
Generator brush length Standard: 22.5 mm {0.886 in}
Minimum: 5.0 mm {0.20 in}
Generator brush spring force Standard: 4.1-5.3 N {0.42-0.54 kgf, 1.0-1.1 lbf}
Minimum: 1.7 N {0.17 kgf, 0.38 lbf}
Firing order 1-3-4-2 (all cylinders independent firing)
CYLINDER No
G06205296Courtesy of MAZDA MOTORS CORP.
Spark plug type LFG1 18 110 (ILTR5A-13G), L3Y2 18 110
Spark plug gap Standard: 1.25-1.45 mm {0.0493-0.0570 in}
New spark plug (reference): 1.25-1.35 mm {0.0493-0.0531 in}
Spark plug resistance [25°C {77 °F}] 3.0-7.5 kilohms
Starter no-load test voltage 11 V
Starter no-load test current 90 A or less
Starter pinion gap 0.5-2.0 mm {0.02-0.07 in}
Starter armature runout 0.05 mm {0.002 in} max.
Starter commutator diameter Standard. 29.4 mm {1.16 in}
Minimum. 28.8 mm {1.13 in}
Segment groove depth of starter commutator Standard: 0.4-0.6 mm {0.016-0.023 in}
Minimum: 0.2 mm {0.008 in}
Starter brush length Standard. 12.3 mm {0.484 in}
Minimum: 7.0 mm {0.28 in}
Starter brush spring force Standard: 21.6 N {2.20 kgf, 4.86 lbf}
Minimum. 5.9 N {0.6 kgf, 1.3 lbf}