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Home >> Isuzu >> 1987 >> Trooper II LS, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - Diesel >> Testing >> Injection Nozzles >> Opening Pressure

Opening Pressure

  1. Pump pressure up slowly to note opening pressure. Nozzle opening pressure is 1493 psi (105 kg/cm2 ) on non-turbo models and 1920 psi (135 kg/cm2 ) on turbo models.
  2. Check injector nozzles for leakage by installing in tester and maintaining 284 psi (20 kg/cm2 ) pressure. If any leakage is evident, injector must be cleaned or replaced.
Fig 1: Injector Nozzle Spray Patterns
G34632Courtesy of ISUZU MOTOR CO.
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