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Home >> Lexus >> 2000 >> SC 300 >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Engine Mechanical) >> Overhaul >> Cylinder Block Assembly >> Cylinder Block

Cylinder Block

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2000 Lexus SC 400, 2000 Lexus LS 400, 2000 Lexus GS 400, 1999 Lexus SC 400, and 1999 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect cylinder block deck surface warpage. Replace cylinder block if deck warpage exceeds specification. See CYLINDER BLOCK  table under ENGINE SPECIFICATIONS.
  2. Measure cylinder bore diameter at .39" (9.9 mm) from top and bottom of cylinder bore and at middle of cylinder bore. Different cylinder bore sizes are used. Cylinder bore diameter is determined by size mark ("1", "2" or "3") stamped on cylinder block deck surface. See Figure.
  3. Ensure cylinder bore diameter is within specification. See CYLINDER BLOCK  table under ENGINE SPECIFICATIONS. Replace cylinder block if cylinder bore diameter exceeds specification.
NOTE: Main bearing bore inside diameter is determined by main bearing bore size mark stamped on cylinder block. See Figure.