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6C-22 FUEL SYSTEM 2. Full needle valve lift confirmation • Confirm the full needle valve lift in accordance with the closed method. 3. Pre-lift confirmation • Confirm pre-lift in accordance with the closed method. Caution: 4. Second nozzle opening pressure confirmation • Confirm the second nozzle opening pressure in accordance with the closed method. 5. Second nozzle opening pressure adjustment • Adjust the second nozzle opening pressure us- ing the shim. 6. Final inspection • Confirm the condition of the fuel spray with the nozzle and nozzle holder assembled. Adjustment Service Data (4HG1-T only) First nozzle opening pressure adjustment 1. Clamp the nozzle holder in a vise. 2. Install the shim, first spring and spring seat in the nozzle holder. Nozzle needle valve full-lift 0.30 mm (0.0118 in) Nozzle needle valve pre-lift 0.04 mm (0.0016 in) at 19.1 MPa (195 kg/cm 2 , 2,770 psi) Nozzle pressure 1st Stage 18.1 MPa (185 kg/cm 2 , 2,630 psi) 2nd Stage 22.1 — 23.0 MPa (225 — 235 kg/cm 2 , 3,200 — 3,342 psi) at lift 0.09 mm (0.0035 in) = pre lift + 0.05 mm (0.0020 in) Legend 1. Nozzle holder body N6A0860E Legend 1. Spring seat N6A0861E |