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HOMESERVICE MANUALSISUZU1996OASIS SREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALMECHANICAL2.2L 4-CYLOVERHAULCYLINDER HEADVALVE GUIDE REMOVAL
1996 Isuzu Oasis S

Valve Guide Removal

1996 Isuzu Oasis SSECTION Valve Guide Removal
  1. Use a hot plate or oven to heat cylinder head to 300°F (150°C). Use a 5.5-mm valve guide driver (07742-0010100), or fabricate valve guide remover from an air impact chisel. See Fig 1. Using an air hammer and valve guide remover, drive valve guide 3/32" (2 mm) toward combustion chamber. This will knock off carbon and make removal easier.
    CAUTION: Heating cylinder head with a torch, may warp head because of uneven heat. Heating cylinder head to a temperature greater than 300°F (150°C), may loosen valve seats.
  2. Turn head over. Working from combustion chamber side of head, drive valve guide out toward camshaft side of head. Ensure hammer force is directly in line with valve guide to prevent damaging driver. If valve guide does not move, drill valve guide using a 5/16" (8 mm) drill bit, then try to drive it out again.
CAUTION: Drill guides in extreme cases only. Cylinder head damage can occur if valve guide breaks.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.