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Engine Technical Data: Notes

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Item Specification
Idle speed (ATX: P position or N position) MTX: 560-660 rpm
ATX: 550-650 rpm
Ignition timing Approx. BTDC 12°
CO concentration Within the regulation
HC concentration Within the regulation
Idle-up speed (ATX: P position or N position) A/C on: 650-800 rpm
Electrical loads on: 600-750 rpm
OCV for No. 1 cylinder deactivation coil resistance 8.4-9.4 ohms [20°C {68°F}]
OCV for No. 4 cylinder deactivation coil resistance 8.4-9.4 ohms [20°C {68°F}]
OCV for hydraulic variable valve timing system coil resistance 6.9-7.5 ohms [20°C {68°F}]
Standard cylinder head bolt length 145.2-145.8 mm {5.717-5.740 in}
Maximum cylinder head bolt length 146.5 mm {5.767 in}
Front oil seal press on amount 0-1.0 mm {0-0.039 in} from edge surface of engine front cover
Rear oil seal press on amount 0-0.5 mm {0-0.019 in} from edge surface of cylinder block
Engine oil capacity (approx. quantity) Oil replacement: 4.3 L {4.5 US qt, 3.8 Imp qt}
Oil and oil filter replacement: 4.5 L {4.8 US qt, 4.0 Imp qt}
Total (dry engine): 5.5 L {5.8 US qt, 4.8 Imp qt}
Oil pressure (reference value) [oil temperature: 80-90°C {176-194°F}, [coolant temperature: 80-90°C {176-194°F}] Lo: 135-165 kPa {1.38-1.68 kgf/cm 2 , 19.6-23.9 psi} [1, 500 rpm]
Hi: 225-275 kPa {2.30-2.80 kgf/cm 2 , 32.7-39.8 psi} [4, 500 rpm]
Engine coolant capacity (approx. quantity) MTX: 6.3 L {6.7 US qt, 5.5 lmp qt}
ATX (World manufacturer identification "JM1"): 6.6 L {7.0 US qt, 5.8 Imp qt}
ATX (World manufacturer identification "3MZ"): 6.5 L {6.9 US qt, 5.7 Imp qt}
Cooling system cap valve opening pressure 93.2-122.6 kPa {0.951-1.250 kgf/cm 2 , 13.6-17.7 psi}
Cooling fan motor standard current World manufacturer identification "JM1": 8.3-10.1 A [12 V]
World manufacturer identification "3MZ": 9.5-11.5 A [12 V]
Throttle body resistance 0.3-100 ohms [20°C {68°F}]
Fuel pressure 475-555 kPa {4.85-5.65 kgf/cm 2 , 68.9-80.4 psi}
Fuel hold pressure 230 kPa {2.35 kgf/cm 2 , 33.4 psi} or more
Fuel injector resistance [Surrounding temperature: 0-80°C {32-176°F}] 1.23-2.03 ohms
Exhaust shutter valve resistance 0.3-100 ohms [20°C {68°F}]
Battery electrolyte specific gravity [20°C {68°F}] 1.22-1.29
Battery load test current 55D23L (60A.h/20HR): 180 A
75D23L (65A.h/20HR): 195 A
LN2 (60A.h/20HR): 195 A
Battery parasitic draw (When the ignition is off (key is removed), all doors and the bonnet are closed.) 40-65 mA
Battery slow charge current 55D23L (60 A.h/20HR): 4.5-5.5 A
75D23L (65 A.h/20HR): 5.0-6.0 A
LN2 (60A.h/20HR): 5.0-6.0 A
Battery quick charge current [30 min] 55D23L (60 A.h/20HR): 30 A
75D23L (65 A.h/20HR): 35 A
LN2 (60A.h/20HR): 35 A
Generator standard voltage [IG-ON] Terminal 1A: B+
Terminal 2A: Approx. 1 V or less
Terminal 2B: Approx. 0 V
Generator standard voltage [Idle, 20°C {68°F}] Terminal 1A: 13-15 V
Terminal 2A: Approx. 3-8 V
Terminal 2B: Turn the electrical loads (such as headlights, blower motor, rear window defroster, brake lights) on and verify that the voltage reading increases.
Generator generated current minimum value 70% of the nominal output current (nominal output current: 130 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}] 1.4-1.6 ohms
Generator stator coil resistance (between slip rings) [20°C {68°F}] 0.054-0.060 ohms
Generator brush length Minimum: 10.0 mm {0.39 in}
Firing order 1-3-4-2 (all cylinders independent firing)
G13714549Courtesy of MAZDA MOTORS CORP.
Spark plug type PE5R-18-110, PE5S-18-110
Spark plug gap Standard: 1.05-1.40 mm {0.0414-0.0551 in}
New spark plug (reference): 1.05-1.15 mm {0.0414-0.0452 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 {0.484 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 {0.280 kgf, 0.618 lbf}