Nissan 240sx S13 Engine Performance Service and Adjustment Specifications

Nissan 240sx S13



Use this article to quickly find specifications related to servicing and on-vehicle adjustments. Use this quick reference article when you are familiar with an adjustment procedure and only need a specification.

CAPACITIES

BATTERY SPECIFICATIONS

• 240SX - Amp Hr. Rating: 60

FLUID CAPACITIES

• Crankcase (Includes Filter)
  • Quantity: 4.0 Qts. (3.8L)
• Cooling System (Includes Heater)
  • Quantity: 7.1 Qts. (6.7L)
• Manual Transmission (SAE 80W-90/API GL-4)
  • Quantity:5.1 Pts. (2.4L)
• Automatic Transmission (Dexron-II) (1)
  • Quantity:8.8 Qts. (8.3L)
• Differential (SAE 80W-90/API GL-5)
  • R200
    • Quantity: 2.7 Pts. (1.3L)
  • R200V
    • Quantity: 3.2 Pts. (1.5L)

---

QUICK-SERVICE

SERVICE INTERVALS AND SPECIFICATIONS

REPLACEMENT INTERVALS

• Air Filter
  • Interval (Miles): 30,000
• Coolant (Change engine coolant at 60,000 miles, then every 30,000 miles.)
  • Interval (Miles): 60,000
• Fuel Filter
  • Interval (Miles): As Needed
• Oil and Filter (Every 3000 miles for severe service.)
  • Interval (Miles): 7500
• Spark Plugs
  • Conventional
    • Interval (Miles): 30,000
  • Platinum
    • Interval (Miles): 60,000

BELT ADJUSTMENT

Note: Deflection is with 22 lbs. (10 kg) pressure applied midway on longest belt run.

• Alternator
  • Deflection: 9/32 In. (mm)
• AC Compressor
  • Deflection: 5/16 In. (mm)
• Power Steering Pump
  • With SUPER HICAS
    • Deflection: 9/32 In. (mm)
  • Without SUPER HICAS
    • Deflection: 5/16 In. (mm)

---

MECHANICAL CHECKS

ENGINE COMPRESSION

Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed (on dual plugs, remove exhaust side only) and throttle wide open.

COMPRESSION SPECIFICATIONS

• Compression Ratio: 9.5:1
• Normal Compression Pressure: 179 psi (12.6 kg/cm2)
• Minimum Compression Pressure: 151 psi (10.6 kg/cm2)
• Maximum Variation Between Cylinders: 14 psi (1.0 kg/cm2)

VALVE CLEARANCE

• Intake: .012-.015 (.30-.38) In. (mm)
• Exhaust: .013-.016 (.33-.41) In. (mm)

---

IGNITION SYSTEM

IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

• 240SX
  • Primary: 1.0
  • Secondary: 10,000

HIGH TENSION WIRE RESISTANCE - Not applicable to Distributorless Ignition Systems (DIS).

• Plug Wires: 30,000 Ohms Maximum
• Coil Wire: 7000 Ohms Maximum

SPARK PLUG TYPE

• 240SX
  • NGK - BKR5E-11

SPARK PLUG SPECIFICATIONS

• 240SX
  • Gap In. (mm): .039-.043 (1.00-1.10)
  • Torque Ft. Lbs. (N.m): 14-22 (20-29)

---

FIRING ORDER AND DISTRIBUTOR ROTATION

Fig. 1: Firing Order and Distributor Rotation ID

IGNITION TIMING (Degrees BTDC @ RPM)

• 240SX
  • Man. Trans.: 18-22 @ 700-800
  • Auto. Trans.: 18-22 @ 700-800

FUEL SYSTEM

FUEL PUMP

REGULATED FUEL PRESSURE

• 240SX
  • At Idle W/O Vacuum psi (kg/cm2): 43 (3.0)
  • At Idle W/ Vacuum psi (kg/cm2): 34 (2.4)

INJECTOR RESISTANCE SPECIFICATIONS

• 240SX: 11 Ohms

IDLE SPEED AND CO LEVEL

• 240SX
  • Idle (With throttle position sensor connected.) RPM: 650-750
  • Idle (With throttle position sensor disconnected.) RPM: 600-700
  • Maximum CO (Measured in Self-Diagnostic Mode II.) Level: 7.0%

THROTTLE POSITION SWITCH

CLOSED THROTTLE POSITION SWITCH SPECIFICATIONS - AT

• Closed Throttle
  • Terminals B and C
  • Ohms: Continuity
• Open Throttle
  • Terminals B and C
  • Ohms: No Continuity

WOT POSITION SWITCH SPECIFICATIONS - AT

• Closed Throttle
  • Terminals A and B
  • Ohms: No Continuity
• Open Throttle
  • Terminals A and B
  • Ohms: Continuity

Did you find this repair info helpful or are improvements needed? Please leave comments below.

Nissan 240sx S13

---