Engine Technical Data: Notes

Item	Specification
Idle speed (MT: Neutral position, AT: P position or N position)	MT: 660-760 rpm AT: 670-770 rpm
Ignition timing	Approx. BTDC 15°
CO concentration	Within the regulation
HC concentration	Within the regulation
Idle-up speed (MT: Neutral position, AT: P position or N position)	MT (A/C on (with A/C)): 720-870 rpm AT (A/C on (with A/C)): 700-800 rpm MT (Electrical loads on): 680-780 rpm AT (Electrical loads on): 690-790 rpm
OCV 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 {5.768 in}
Front oil seal press on amount C	0-1.0 mm {0-0.039 in} from engine front cover
Rear oil seal press on amount C	0-0.5 mm {0-0.019 in} from cylinder block
Engine oil capacity (approx. quantity)	Oil replacement: 4.1 L {4.3 US qt, 3.6 Imp qt} Oil and oil filter replacement: 4.3 L {4.5 US qt, 3.8 lmp qt} Total (dry engine): 5.0 L {5.3 US qt, 4.4 Imp qt}
Oil pressure (reference value) [coolant temperature: 80-90 °C {176-194 °F}]	Lo: 110-175 kPa {1.13-1.78 kgf/cm2 , 16.0-25.3 psi} [1, 500 rpm] Hi: 300-430 kPa {3.06-4.38 kgf/cm2 , 43.6-62.3 psi} [4, 500 rpm]
Engine coolant capacity (approx. quantity)	MT: 6.0 L {6.3 US qt, 5.3 Imp qt} AT: 5.9 L {6.2 US qt, 5.2 Imp qt}
Cooling system cap valve opening pressure	93.2-122.6 kPa {0.951-1.250 kgf/cm2 , 13.6-17.7 psi}
Thermostat initial-opening temperature	86.5-89.5 °C {188-193 °F}
Thermostat full-open temperature	Type A: 95 °C {203 °F} TypeB: 100 °C {212 °F}
Thermostat full-open lift	Type A: 8.5-11 mm {0.34-0.43 in} Type B: 8.5 mm {0.33 in} or more
Cooling fan motor standard current	7.6-11.6 A [12 V]
Throttle body resistance	0.3-100 ohms [20°C {68 °F}]
Fuel pressure	425-505 kPa {4.34-5.14 kgf/cm2 , 61.7-73.2 psi}
Fuel hold pressure	250 kPa {2.55 kgf/cm2 , 36.3 psi} or more
Fuel injector resistance	1.74-2.04 ohms [20 °C {68 °F}]
Battery electrolyte specific gravity	1.22-1.29 [20 °C {68 °F}]
Battery load test current	46B24L (36 A.h/5HR, 45 A.h/20HR): 135 A
Battery parasitic draw (When the ignition is off, all doors and the bonnet are closed.)	40-65 mA
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 defogger, brake lights) 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}]	1.8-2.1 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)
Spark plug type	PE5R-18-110 PE5S-18-110
Spark plug gap	Standard: 1.10-1.40 mm {0.0433-0.0551 in} New spark plug (reference): 1.10 mm {0.0433 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}

Compression pressure 

Fig 1: Compression Pressure Value And Engine Speed Graph

Courtesy of MAZDA MOTORS CORP.

• Standard: Refer to the graph.
• Minimum: Refer to the graph.
• Maximum difference between cylinders: 148 kPa {1.51 kgf/cm² , 21.5 psi} [250 rpm]