Engine Technical Data: Notes

Item	Specification
Idle speed (P position or N position)	650-750 rpm
Ignition timing	Approx. BTDC 21°
CO concentration	Within the regulation
HC concentration	Within the regulation
Idle-up speed (P position or N position)	A/C on: 650-800 rpm Electrical loads on: 650-800 rpm
OCV coil resistance	6.9-7.55 ohms [20°C {68°F}]
Cylinder head bolt length L	145.2-145.8 mm {5.717-5.740 in}
Cylinder head bolt length L maximum	146.5 mm {5.767 in}
Front oil seal press on amount	0-1.0 mm {0-0.039 in}
Rear oil seal press on amount	0-0.5 mm {0-0.019 in}
Engine oil capacity (approx. quantity)	Oil replacement: 4.6 L {4.9 US qt, 4.0 Imp qt} Oil and oil filter replacement: 4.8 L {5.1 US qt, 4.2 Imp qt} Total (dry engine): 5.9 L {6.2 US qt, 5.2 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/cm² , 19.6-23.9 psi} [1, 500 rpm] Hi: 225-275 kPa {2.30-2.80 kgf/cm² , 32.7-39.8 psi} [4, 500 rpm]
Engine coolant capacity (approx. quantity) [U.S.A. and Canada]	9.9 L {10.5 US qt, 8.7 Imp qt}
Engine coolant capacity (approx. quantity) [Mexico]	9.8 L {10.4 US qt, 8.6 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	U.S.A. and Canada: 86.5-89.5°C {188-193°F} Except U.S.A. and Canada: 80.5-83.5°C {177-182°F}
Thermostat full-open temperature	U.S.A. and Canada: 100°C {212°F} Except U.S.A. and Canada: 95°C {203°F}
Thermostat full-open lift	8.5 mm {0.33 in} or more
Throttle body resistance	0.3-100 ohms [20°C {68°F}]
Air bypass valve resistance	12.7-13.7 ohms [23°C {73°F}]
Fuel pressure	545-695 kPa {5.56-7.08 kgf/cm² , 79.1-100.0 psi}
Fuel hold pressure	175-326 kPa {1.79-3.32 kgf/cm² , 25.4-47.2 psi}
Fuel injector resistance	1.6-2.52 ohms [Surrounding temperature: 0-80°C {32-176°F}]
Battery electrolyte specific gravity	1.22-1.29 [20°C {68°F}]
Battery load test current	55D23L (60 Ah/20HR): 180 A 75D23L (65 Ah/20HR): 195 A
Parasitic draw (When the ignition is off (lock), all doors and the hood are closed.)	40-65 mA
Battery slow charge current	55D23L (60 Ah/20HR): 4.5-5.5 A 75D23L (65 Ah/20HR): 5.0-6.0 A
Battery quick charge current [30 min]	55D23L (60 Ah/20HR): 30 A 75D23L (65 Ah/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: 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)
Firing order	Courtesy of MAZDA MOTORS CORP.
Spark plug type	PY8V-18-110
Spark plug gap	Standard: 0.70-0.85 mm {0.028-0.033 in} New spark plug (reference): 0.70-0.80 mm {0.028-0.031 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}