Engine Technical Data [L3]

Item	Specification
Standard valve clearance [Engine cold]	IN: 0.22-0.28 mm {0.009-0.011 in} EX: 0.27-0.33 mm {0.011-0.012 in}
Compression	Standard: 1,372 kPa {14.00 kgf/cm2 , 199.1 psi} [290 RPM] Minimum: 960 kPa {9.79 kgf/cm2 , 139.2 psi} [290 RPM] Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2 , 28.5 psi}
Cylinder head bolt length	Standard: 145.2-145.8 mm {5.717-5.740 in} Maximum: 146.5 mm {5.768 in}
Front oil seal press-in amount	0-0.5 mm {0-0.019 in}
Ignition timing	Approx. BTDC 8°
Oil pressure (reference value) [oil temperature: 100 °C {212 °F}]	395-649 kPa {4.03-6.61 kgf/cm2 , 57.3-94.1 psi} [3,000 RPM]
Engine oil capacity (approx. quantity)	Oil replacement: 3.9 L {4.1 US qt, 3.4 lmp qt} Oil and oil filter replacement: 4.3 L {4.5 US qt, 3.8 lmp qt} Total (dry engine): 4.6 L {4.9 US qt, 4.0 lmp qt}
Engine coolant capacity (approx. quantity)	7.5 L {7.9 US qt, 6.6 lmp 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 current	17-23 A
Fuel line pressure (Reference)	350-410 kPa {3.57-4.18 kgf/cm2 , 50.8-59.4 psi}
Fuel hold pressure (Reference)	250 kPa {2.55 kgf/cm2 , 36.3 psi} or more
Fuel injector resistance	11.3-12.7 ohms [20 °C {68 °F}]
Leakage amount	Less than 1 drop/2 min
Injection volume	275-312 ml {275-312 cc, 16.8-19.0 cu in}/min
Battery electrolyte specific gravity [20 °C {68 °F}]	1.22-1.29
Battery load test current	55D23L(48):180A 80D26L(55):195A
Battery back-up current (When the ignition switch is off, the ignition key is removed, and all doors are closed.)	Vehicles with immobilizer system: 25-45 mA Vehicles without immobilizer system: 30 mA or less
Battery slow charge current	55D23L (48): 4.5-5.5 A 80D26L (55): 5.5-6.5 A
Battery quick charge current [30 min]	55D23L (48): 30 A 80D26L (55): 35 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: 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 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)
	Courtesy of MAZDA MOTORS CORP.
Spark plug type	LFG1 18 110 (ILTR5A-13G), L3Y2 18110
Spark plug gap	1.25-1.35 mm {0.0493-0.0531 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	0.05 mm {0.002 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: 0.4-0.6 mm {0.016-0.023 in} Minimum: 0,2 mm {0.008 in}
Starter brush length	Standard: 12.3 mm {0.48 in} Minimum: 7.0 mm {0.28 in}
Starter brush spring force	Standard: 18.3-24.9 N {1.87-2.53 kgf, 4.12-5.59 lbf} Minimum: 5.9 N {0.6 kgf, 1.3 lbf}

Idle speed: MTX 

Idle speed: ATX 

Engine oil specification 

Item	U.S.A. and CANADA	Except U.S.A. and CANADA
Engine oil grade	Courtesy of MAZDA MOTORS CORP.	Courtesy of MAZDA MOTORS CORP.
Engine oil viscosity	5W-20	5W-20 (If SAE 5W-20 engine oil is not available in your market, use SAE 5W-30 engine oil.)