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Home >> Subaru >> 1989 >> XT 1.8 5 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.8L 4-CYL & 1.8L 4-CYL Turbo - VINS [4,5,7] >> Overhaul >> Cylinder Block >> Disassembly

Cylinder Block: Disassembly

  1. Remove intake manifold and cylinder head. See INTAKE MANIFOLD and CYLINDER HEAD under ENGINE, MANIFOLDS & CYLINDER HEADS. Remove water pump, oil pump and oil pan. Remove oil separator cover. Remove 14 mm Allen head service hole plugs from crankcase.
  2. Using crankshaft pulley retaining bolt, rotate crankshaft and position No. 1 and 2 pistons at BDC. Access to piston pins No. 1 and 2 is through front service hole plugs while No. 3 and 4 are through rear service hole plugs. From service hole plug access, remove piston pin retaining clip from the pistons. Note direction of retaining clip installation.
  3. Using Piston Pin Remover (399094310), remove piston pins from No. 1 and 2 pistons. Repeat procedure and remove piston pins on remaining pistons.
  4. Remove all cylinder block bolts except 10 mm bolt at center journal. Position cylinder block so cylinders No. 1 and 3 are upward. Remove remaining bolt and separate cylinder block. Remove back-up ring and "O" ring from cylinder block.
    CAUTION: DO NOT allow connecting rods to fall and damage cylinder block while separating cylinder block.
  5. Remove crankshaft and connecting rods. See CRANKSHAFT & CONNECTING ROD under CRANKSHAFT & ROD BEARINGS. Remove pistons. See PISTON & ROD ASSEMBLY.
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