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Engine Technical Data [MZI-3.7]: Notes

ENGINE TECHNICAL DATA

Item Specification
Ignition timing Approx. BTDC 15 °
Idle speed (P position) No load: 570-670 RPM
Electrical load on: 630-730 RPM
Power steering oil pump operation: 600-700 RPM A/C and heater operation: 570-850 RPM [-40-49 °C {-40-120 °F}]
CO concentration Within the regulation
HC concentration Within the regulation
Standard valve clearance [Engine cold] IN: 0.150-0.250 mm {0.00591-0.00984 in}
EX: 0.300-0.400 mm {0.0119-0.0157 in}
Oil control valve resistance 5-14 ohms
Engine oil capacity (approx. quantity) Oil replacement: 4.7 L {5.0 US qt, 4.1 lmp qt}
Oil and oil filter replacement: 5.2 L {5.5 US qt, 4.6 lmp qt}
Total (dry engine): 5.7 L {6.0 US qt, 5.0 lmp qt}
Oil pressure (reference value) [oil temperature: 93.3 °C {200 °F}) 310-621 kPa {3.17-6.33 kgf/cm2 , 45.0-90.0 psi} [2,000 RPM]
Engine coolant capacity (approx. quantity) 9.8L {10 US qt, 8 6 lmp 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 79.5-83.3 °C {176-181 °F}
Thermostat full-open temperature 94.5 °C {202 °F}
Thermostat full-open lift More than 8.1 mm {0.32 in}
Fuel line pressure 430-510 kPa {4.39-5.20 kgf/cm2 , 62.4-73.9 psi}
Fuel injector resistance 11.3-12.7 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 A: B+
Terminal RC Approx. 1 V or less
Terminal LI: Approx. 1 V
Generator standard voltage [Idle, 20 °C {68 °F}] Terminal B. 12-16 V
Terminal A: 12-16 V
Terminal RC: 0-16 V
Terminal LI 1-16 V
Generator generated current minimum value 70% of the nominal output current (nominal output current: 110 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}] 1.8-2.2 ohm
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 1-4-2-5-3-6
CYLINDER No
G06205299Courtesy of MAZDA MOTORS CORP.
Ignition coil secondary coil resistance 5-6 kilohms
Spark plug type CY01 18 110 (AYFS 22FM)
Spark plug gap 1.29-1.45 mm {0.0508-0.0570 in}
Spark plug resistance 2-20 kilohms
Starter no-load test voltage 11 V
Starter no-load test current 90 A or less
Starter pinion gap 0 mm {0 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 {0.28 kgf, 0.618 lbf}