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Home >> Toyota >> 1990 >> Cressida >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.0L 6-CYL & 3.0L 6-CYL Turbo - VIN [M] >> Overhaul >> Cylinder Block Service

Cylinder Block Service

  1. Using a feeler gauge and straightedge, inspect cylinder block deck surface for warpage. Maximum warpage is .002" (.05 mm). If warpage is greater than maximum, replace cylinder block.
  2. Measure cylinder bore out-of-round and taper. See CYLINDER BLOCK SPECIFICATIONS  table. If either out-of-round or taper exceeds service limit, rebore all cylinders for oversize pistons.
  3. There are 5 different standard cylinder diameters, marked "0", "1", "2", "3", "4" located on left side of block near each cylinder bore and on oil pan gasket surface between cylinders No. 4 and 5. See Figure and CYLINDER BLOCK SPECIFICATIONS table.
  4. If cylinder bore is okay, hone cylinder to obtain a 60-degree crosshatch pattern. After honing, wash cylinder bore with hot soapy water. Air dry cylinder bore and apply engine oil to prevent rusting.
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