Item
Specification
Idle speed (ATX: P, N position, MTX: Neutral position)
MZR 1.8, MZR 2.0 (MTX), MZR 2.5: 600—700 rpm
MZR 2.0 (ATX): 650—750 rpm
Ignition timing
MZR 1.8, MZR 2.0: Approx. BTDC 8°
MZR 2.5: Approx. BTDC 12°
Idle mixture
HC concentration: Within the regulation
CO concentration: Within the regulation
Idle-up speed [MZR 1.8] (MTX: Neutral position)
A/C on and refrigerant pressure switch (middle pressure) is off: 700—800 rpm
A/C on and refrigerant pressure switch (middle pressure) is on: 700—800 rpm
Electrical loads on: 650—750 rpm
Idle-up speed [MZR 2.0] (ATX: P, N position, MTX: Neutral position)
A/C on and refrigerant pressure switch (middle pressure) is off: 700—800 rpm
A/C on and refrigerant pressure switch (middle pressure) is on: 700—800 rpm
Electrical loads on: 650—750 rpm
Idle-up speed [MZR 2.5] (ATX: P, N position, MTX: Neutral position)
A/C on and refrigerant pressure switch (middle pressure) is off: 650—750 rpm
A/C on and refrigerant pressure switch (middle pressure) is on: 700—800 rpm
Electrical loads on: 600—750 rpm (ATX), 650—750 rpm (MTX)
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 [MZR 1.8]
Standard: 1,750 kPa {17.84 kgf/cm2, 253.8 psi}[300 rpm]
Minimum: 1,225 kPa {12.49 kgf/cm2, 177.7 psi}[300 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Compression [MZR 2.0]
Standard: 1,720 kPa {17.54 kgf/cm2, 249.5 psi}[300 rpm]
Minimum: 1,204 kPa {12.28 kgf/cm2, 174.6 psi}[300 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Compression [MZR 2.5]
Standard: 1,324 kPa {13.50 kgf/cm2, 192.0 psi}[300 rpm]
Minimum: 927 kPa {9.45 kgf/cm2, 134 psi}[300 rpm]
Maximum difference between cylinders: 196.1 kPa {2.0 kgf/cm2, 28.5 psi}
Cylinder head bolt stem length (L)
Standard: 145.2—145.8 mm {5.717—5.740 in}
Maximum: 146.5 mm {5.767 in}
OCV coil resistance [MZR 2.0, MZR 2.5]
6.9—7.9 ohms [20°C {68°F}]
Front oil seal press-in amount
0—0.5 mm {0—0.019 in}
Engine oil capacity [MZR 1.8, MZR 2.0] (approx. quantity)
Oil replacement: 3.9 L {4.1 US qt, 3.4 Imp qt}
Oil and oil filter replacement: 4.3 L {4.5 US qt, 3.8 Imp qt}
Total (dry engine): 4.6 L {4.9 US qt, 4.0 Imp qt}
Engine oil capacity [MZR 2.5] (approx. quantity)
Oil replacement: 4.6 L {4.9 US qt, 4.0 Imp qt}
Oil and oil filter replacement: 5.0 L {5.3 US qt, 4.4 Imp qt}
Total (dry engine): 5.5 L {5.8 US qt, 4.8 Imp qt}
Oil pressure (reference value) [oil temperature: 100 °C {212 °F}]
MZR 1.8, MZR 2.0: 234—521 kPa {2.39—5.31 kgf/cm2, 34.0—75.5 psi} [3,000 rpm]
MZR 2.5: 395—649 kPa {4.03—6.61 kgf/cm2, 57.3—94.1 psi} [3,000 rpm]
Engine coolant capacity (approx. quantity)
7.5 L {7.9 US qt, 6.6 Imp qt}
Cooling system cap valve opening pressure
112.8—142.2 kPa {1.151—1.450 kgf/cm2, 16.37—20.62 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 No.1, No.2 standard current [Type A]
4.7—8.7 A [12 V]
Cooling fan motor No.1, No.2 standard current [Type B]
High: 9.4 A [12 V]
Low: 7.6 A [12 V]
Cooling fan motor No.1, No.2 standard current [Type C]
No.1: 3.7—6.7 A [12 V]
No.2: 6.1—9.1 A [12 V]
Cooling fan motor No.1 standard current [Type D]
High: 7.7—10.7 A [12 V]
Middle: 6.2—9.2 A [12 V]
Low: 5.0—8.0 A [12 V]
Cooling fan motor No.2 standard current [Type D]
High: 7.5—10.5 A [12 V]
Middle: 6.1—9.1 A [12 V]
Low: 4.9—7.9 A [12 V]
Fuel pressure
375—450 kPa {3.83—4.58 kgf/cm2, 54.4—65.2 psi}
Fuel hold pressure
200 kPa {2.04 kgf/cm2, 29.1 psi} or more
Fuel injector resistance
11.4—12.6 ohms [20 °C {68 °F}]
Battery electrolyte specific gravity [20 °C {68 °F}]
1.22—1.29
Battery load test current
55D23L (48 A·h/5HR, 55 A·h/20HR): 180 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 195 A
80D26L (55 A·h/5HR, 65 A·h/20HR): 195 A
Battery parasitic draw (When the ignition is off (key is removed), all doors and the bonnet are closed.)
50—65 mA
Battery slow charge current
55D23L (48 A·h/5HR, 55 A·h/20HR): 4.5—5.5 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 5.0—6.0 A
80D26L (55 A·h/5HR, 65 A·h/20HR): 5.5—6.5 A
Battery quick charge current [30 min]
55D23L (48 A·h/5HR, 55 A·h/20HR): 30 A
75D23L (52 A·h/5HR, 65 A·h/20HR): 35 A
80D26L (55 A·h/5HR, 65 A·h/20HR): 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: 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}]
2.0—2.3 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
MZR 1.8: L303 18110 (ITR5F13), L845 18110
MZR 2.0, MZR 2.5: LFG1 18110 (ILTR5A-13G), L3Y2 18110, LFJD 18110
Spark plug gap (L303 18110 (ITR5F13), LFG1 18110 (ILTR5A-13G), L3Y2 18110)
Standard: 1.25—1.45 mm {0.049—0.057 in}
New spark plug (reference): 1.25—1.35 mm {0.049—0.053 in}
Spark plug gap (L845 18110, LFJD 18110)
Standard: 1.25—1.35 mm {0.049—0.053 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
MZR 1.8, MZR 2.0: 95 A or less
MZR 2.5: 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: 15.1—20.4 N {1.54—2.08 kgf, 3.40—4.58 lbf}
Minimum: 2.75 N {0.280 kgf, 0.618 lbf}