ENGINE TECHNICAL DATA [ZJ, ZY, Z6]


id0150b1800100

Item

Specification

Standard valve clearance [Engine cold]
0.27—0.33 mm {0.0107—0.0129 in}
Compression pressure (ZJ)
Standard: 1,461 kPa {14.90 kgf/cm2, 211.9 psi}[300 rpm]
Minimum: 1,023 kPa {10.44 kgf/cm2, 148.4 psi}[300 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Compression pressure (ZY)
Standard: 1,520 kPa {15.50 kgf/cm2, 220.5 psi}[300 rpm]
Minimum: 1,064 kPa {10.85 kgf/cm2, 154.3 psi}[300 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Compression pressure (Z6)
Standard: 1,470 kPa {14.99 kgf/cm2, 213.2 psi}[250 rpm]
Minimum: 1,029 kPa {10.49 kgf/cm2, 149.2 psi}[250 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Pushing distance of the front oil seal
0—0.5 mm {0—0.019 in)
Cylinder Head bolt length (Standard)
128.9—129.5 mm {5.075—5.098 in}
Cylinder Head bolt length (Maximum)
130.2 mm {5.125 in}
Ignition timing (Test mode on)
BTDC 9—11 °
Ignition timing (Test mode off)
BTDC 6—18 °
Idle speed [ZJ MTX (Neutral position)]
No load: 690—790 rpm
Electrical loads on*1 (34—42 A): 700—800 rpm
Electrical loads on*1 (more than 42 A): 700—800 rpm
A/C on (Low load*2): 700—800 rpm
A/C on (High load*3): 700—800 rpm
P/S on: 700—800 rpm
Idle speed [ZY ATX (N position)]
No load: 600—700 rpm
Electrical loads on*1 (34—42 A): 650—750 rpm
Electrical loads on*1 (more than 42 A): 700—800 rpm
A/C on (Low load*2): 650—750 rpm
A/C on (High load*3): 670—770 rpm
Idle speed [ZY MTX (Neutral position)]
No load: 600—700 rpm
Electrical loads on*1 (34—42 A): 650—750 rpm
Electrical loads on*1 (more than 42 A): 700—800 rpm
A/C on (Low load*2): 650—750 rpm
A/C on (High load*3): 700—800 rpm
Idle speed [Z6 ATX (N position)]
No load: 700—800 rpm
Electrical loads on*1 (34—42 A): 700—800 rpm
Electrical loads on*1 (more than 42 A): 700—800 rpm
A/C on (Low load*2): 700—800 rpm
A/C on (High load*3): 700—800 rpm
P/S on: 700—800 rpm
Idle speed [Z6 ATX (D range)]
No load: 650—750 rpm
Electrical loads on*1 (34—42A): 650—750 rpm
Electrical loads on*1 (more than 42 A): 670—770 rpm
A/C on (Low load*2): 650—750 rpm
A/C on (High load*3): 700—800 rpm
P/S on: 700—800 rpm
Idle speed [Z6 MTX (Neutral position)]
No load: 640—740 rpm
Electrical loads on*1 (34—42 A): 650—750 rpm
Electrical loads on*1 (more than 42 A): 700—800 rpm
A/C on (Low load*2): 650—750 rpm
A/C on (High load*3): 700—800 rpm
P/S on: 700—800 rpm
Idle Mixture
HC concentration: Within the regulation
CO concentration: Within the regulation
Oil pressure (reference value) [oil temperature: 100 °C {212 °F}]
330—380 kPa {3.36—3.87 kgf/cm2, 47.8—55.0 psi} min [3,000 rpm]
Engine oil capacity (approx. quantity)
Oil replacement: 3.7 L {3.9 US qt, 3.3 Imp qt}
Oil and oil filter replacement: 3.9 L {4.1 US qt, 3.4 Imp qt}
Total (dry engine): 4.2 L {4.4 US qt, 3.7 Imp qt}
Engine coolant capacity
With heater : 6.0 L {6.3 US qt, 5.3 Imp qt}
Without heater : 5.5 L {5.8 US qt, 4.8 Imp qt}
Cooling system cap valve opening pressure
90—110 kPa {0.92—1.12 kgf/cm2, 13.1—15.9 psi}
Thermostat initial-opening temperature
80—84 °C {176—183 °F}
Thermostat full-open temperature
95 °C {203 °F}
Thermostat full-open lift
More than 8.5 mm {0.33 in})
Fuel pressure
350—410 kPa {3.57—4.18 kgf/cm2, 50.8—59.4 psi}
Fuel hold pressure
250 kPa {2.55 kgf/cm2, 36.2 psi} or more
Fuel injector resistance (without throttle valve actuator)
Approx. 13.8 ohms [20 °C {68 °F}]
Fuel injector resistance (with throttle valve actuator)
Approx. 12 ohms [20 °C {68 °F}]
Fuel injector leakage amount
1 drop or less/2 min
Fuel injector injection volume (without throttle valve actuator)
64—84 ml {64—84 cc, 3.9—5.1 cu in}/15 s
Fuel injector injection volume (with throttle valve actuator)
Approx. 235 ml {235 cc, 14.3 cu in}/1 min
Battery electrolyte specific gravity
Standard : 1.22—1.29 [20 °C {68 °F}]
Battery load test current [ZJ, ZY]
50D20L (40 A·h/5HR): 150 A
75D23L (52 A·h/5HR): 195 A
Battery load test current [Z6]
50D20L (40 A·h/5HR, 45 A·h/20HR): 150 A
50D20L (40 A·h/5HR, 50 A·h/20HR): 150 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 195 A
80D26L (55 A·h/5HR): 195 A
Battery parasitic draw (When the ignition is off (key is removed), all doors and the bonnet are closed.) (without throttlle valve actuator)
20 mA max.
Battery parasitic draw (When the ignition is off (key is removed), all doors and the bonnet are closed.) (with throttlle valve actuator)
Vehicles with immobilizer system: 25—45 mA
Vehicles without immobilizer system: 30 mA or less
Battery slow charge current [ZJ, ZY]
50D20L (40 A·h/5HR): 4.0—5.0 A
75D23L (52 A·h/5HR): 5.0—6.0 A
Battery slow charge current [Z6]
50D20L (40 A·h/5HR, 45 A·h/20HR): 4.0—5.0 A
50D20L (40 A·h/5HR, 50 A·h/20HR): 4.0—5.0 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 5.0—6.0 A
80D26L (55 A·h/5HR): 5.5—6.5 A
Battery quick charge current (30 min.) [ZJ, ZY]
50D20L (40 A·h/5HR): 25 A
75D23L (52 A·h/5HR): 35 A
Battery quick charge current (30 min.) [Z6]
50D20L (40 A·h/5HR, 45 A·h/20HR): 25 A
50D20L (40 A·h/5HR, 50 A·h/20HR): 25 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 35 A
80D26L (55 A·h/5HR): 35 A
Generator standard voltage (IG-ON)
Terminal B: B+
Terminal P: Approx. 1.0 V or less
Terminal D: Approx. 0 V
Generator standard voltage (Idle, 20 °C {68 °F})
Terminal B: 13.0—15.0
Terminal P: Approx. 3.0—8.0
Terminal D: Turn the following electrical loads on and verify that the voltage reading increases.
Generator generated current minimum valve
70 % of the nominal output current (nominal output current: 90 A)
[ambient temp. 20 °C {68 °F}, voltage 13.0—15.0 V, both engine and generator are cold]
Generator rotor resistance [20 °C {68 °F}] (without throttle valve actuator)
Standard : 2.0—2.3 ohms
Generator rotor resistance [20 °C {68 °F}] (with throttle valve actuator)
Standard : 1.6—1.9 ohms
Generator brush length
Standard : 18.5 mm {0.73 in}
Minimum : 5.0 mm {0.2 in}
Generator spring force
Standard : 4.8—6.0 N {0.49—0.61 kgf, 1.08—1.34 lbf}
Minimum : 2.16 N {0.22 kgf, 0.49 lbf}
Firing order
1-3-4-2 (all cylinders independent firing)
Spark plug type
BP01 18110, BP02 18110, BP13 18110 A, BPY1 18110, BPY2 18110, ZY51 18110, ZYY1 18110
Standard plug gap
1.0—1.1 mm {0.040—0.043 in}
Spark plug resistance
BP01 18110, BP02 18110, BP13 18110 A, BPY1 18110, BPY2 18110, ZY51 18110, ZYY1 18110 : 3.0—7.5 kilohms [25 °C {77 °F}]
BP13 18110 A : 5.0—15.0 kilohms [25 °C {77 °F}]
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 {0.020 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—24.8 N {1.87—2.52 kgf, 4.12—5.57 lbf}
Minimum: 5.9 N {0.6 kgf, 1.3 lbf}

*1  :Generator generating current valve.
*2  :Refrigerant pressure switch (middle pressure switch) is off.
*3  :Refrigerant pressure switch (middle pressure switch) is on.

Recommended engine oil

Item

Specifications

Europe [ZJ, Z6]

Except Europe [ZY, Z6]

Grade
API SL or ACEA A3/A5
API SL or ACEA A3
API SM or ACEA A3/A5
API SL/SM or ACEA A3/A5
API SG/SH/SJ/SL/SM or ILSAC GF-2/GF-3/GF-4
Viscosity (SAE)
5W-30
10W-40
0W-30
5W-20, 5W-30, 10W-40
40, 30, 20, 20W–20, 10W–30, 10W–40,
10W–50, 20W–40, 15W–40, 20W–50,
15W–50, 5W–20, 5W–30, 5W-40
Remarks
Mazda genuine Dexelia oil e.g.