ENGINE TECHNICAL DATA [L8, LF]

id0150a5800100

Item | Specification
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Ignition timing | Approx. BTDC 8 °
Idle speed | No load: 670—770 rpm (MT), 700—800 rpm (AT) Electrical loads (38—48 A): 700—800 rpm Electrical loads (more than 48 A): 800—900 rpm P/S ON: 700—800 rpm (MT), 750—850 rpm (AT) A/C ON: 825—925 rpm (MT), 775—875 rpm (AT)
Idle mixture | HC concentration: Within the regulation CO concentration: Within the regulation
Valve clearance [Engine cold] | IN: 0.22—0.28 mm {0.0087—0.0110 in} EX: 0.27—0.33 mm {0.0107—0.0129 in}
Compression [L8] | Standard: 1,750 kPa {17.845 kgf/cm2, 253.816 psi}[300 rpm] Minimum: 1,225 kPa {12.492 kgf/cm2, 177.64 psi}[300 rpm] Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Compression [LF] | Standard: 1,720 kPa {17.5391 kgf/cm2, 249.465 psi}[300 rpm] Minimum: 1,204 kPa {12.277 kgf/cm2, 174.58 psi}[300 rpm] Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Oil control valve resistance | 6.9—7.9 ohms [20°C {68°F}]
Cylinder Head Bolt Length L | 145.2—145.8 mm {5.72—5.74 in}
Cylinder Head Bolt Maximum | 146.5 mm {5.77 in}
Engine oil capacity (approx. quantity) [Without oil cooler] | Oil replacement: 4.05 L {4.28 US qt, 3.56 Imp qt} Oil and oil filter replacement: 4.45 L {4.70 US qt, 3.92 Imp qt} Total (dry engine): 4.75 L {5.02 US qt, 4.18 Imp qt}
Engine oil capacity (approx. quantity) [With oil cooler] | Oil replacement: 4.05 L {4.28 US qt, 3.56 Imp qt} Oil and oil filter replacement: 4.55 L {4.81 US qt, 4.00 Imp qt} Total (dry engine): 4.85 L {5.12 US qt, 4.27 Imp qt}
Oil pressure (reference value) [oil temperature: 100 °C {212 °F}] | L8: 234—521 kPa {2.39—5.31 kgf/cm2, 33.9—75.5 psi}[3,000 rpm] LF: 337—591 kPa {3.44—6.03 kgf/cm2, 49.0—85.8 psi}[3,000 rpm]
Engine coolant capacity [Australian specs.] (approx. quantity) | MT : 7.1 L {7.5 US qt, 6.2 Imp qt} AT : 7.0 L {7.4 US qt, 6.2 Imp qt}
Engine coolant capacity [European (L.H.D.) specs.] (approx. quantity) | L8 : 7.7 L {8.1 US qt, 6.8 Imp qt} LF (MT) : 7.6 L {8.0 US qt, 6.7 Imp qt} LF (AT) : 7.5 L {7.9 US qt, 6.6 Imp qt}
Engine coolant capacity [U.K. specs.] (approx. quantity) | L8 : 7.5 L {7.9 US qt, 6.6 Imp qt} LF (MT) : 7.4 L {7.8 US qt, 6.5 Imp qt} LF (AT) : 7.3 L {7.7 US qt, 6.4 Imp qt}
Engine coolant capacity [General (L.H.D.) specs.] (approx. quantity) | 7.5 L {7.9 US qt, 6.6 Imp qt}
Cooling system cap valve opening pressure | 93.2—122.6 kPa {0.95—1.25 kgf/cm2, 13.5—17.8 psi}
Thermostat initial-opening temperature | 80—84 °C {176—183 °F}
Thermostat full-open temperature | 97 °C {207 °F}
Thermostat full-open lift | More than 8.0 mm {0.31 in}
Cooling fan motor standard current [12 V] | High: 9.0—12.0 A Middle: 6.4—9.4 A Low: 4.8—7.8 A
Fuel line pressure (Reference) | 375—450 kPa {3.83—4.58 kgf/cm2, 54.4—65.2 psi}
Fuel hold pressure (Reference) | 200 kPa {2.04 kgf/cm2, 29.0 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 load test current | 46B24L (36 A·h/5HR, 45 A·h/20HR): 135 A
Battery parasitic draw (When the ignition is off (key is removed), all doors and the bonnet are closed.) | 25—45 mA
Battery slow charge current | 46B24L (36 A·h/5HR, 45 A·h/20HR): 3.5—4.5 A
Battery quick charge current [30 min] | 46B24L (36 A·h/5HR, 45 A·h/20HR): 25 A
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}] | 1.9—2.2 ohm
Generator brush length | Standard: 22.5 mm {0.89 in} Minimum: 5.0 mm {0.20 in}
Generator brush spring force | Standard: 4.1—5.3 N {0.42—0.54 kgf, 0.92—1.19 lbf} Minimum: 1.7 N {0.17 kgf, 0.38 lbf}
Firing order | 1—3—4—2 (all cylinders independent firing)
Spark plug type | L8: L303 18110 (ITR5F13), L845 18110 LF: L3G2 18110, L3Y1 18110, LFJR 18110
Spark plug gap (L303 18110 (ITR5F13), L3G2 18110, L3Y1 18110) | Standard: 1.25—1.45 mm {0.050—0.057 in} New spark plug (reference): 1.25—1.35 mm {0.050—0.053 in}
Spark plug gap (L845 18110, LFJR 18110) | Standard: 1.25—1.35 mm {0.050—0.053 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 | 0.1 mm {0.004 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: 0.5 mm {0.02 in} Minimum: 0.2 mm {0.008 in}
Starter brush length | Standard: 12.3 mm {0.48 in} Minimum: 5.5 mm {0.22 in}
Starter brush spring force | Standard: 15.0—20.4 N {1.53—2.08 kgf, 3.38—4.58 lbf} Minimum: 2.75 N {0.28 kgf, 0.62 lbf}

Engine oil [Europe]

Recommended engine oil | Alternative engine oil
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Mazda Original Oil Ultra 5W-30 | Mazda Original Oil 10W-40 | Mazda Original Oil Supra 0W-30 | Mazda Original Oil Supra 0W-20 | API SL/SM/SN or ACEA A3/A5 5W-30 | API SL/SM/SN or ACEA A3/A5 10W-40 | API SL/SM/SN or ACEA A3/A5 5W-20 | API SL/SM/SN or ACEA A3/A5 0W-20

Engine oil [Except Europe]

Item | Specifications
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Grade | API SG/SH/SJ/SL/SM or ILSAC GF-2/GF-3/GF-4/
Viscosity (SAE) | 40, 30, 20, 20W-20, 10W-30, 10W-40, 10W-50, 20W-40, 15W-40, 20W-50, 15W-50, 5W-20, 5W-30, 5W-40