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Home >> Isuzu >> 1989 >> I-Mark LS >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.5L 4-CYL - VIN [7] & 1.5L 4-CYL Turbo - VIN [9] >> Overhaul >> Piston Rings

Piston Rings

  1. Measure piston ring side and end clearance for all pistons and replace rings as necessary. When replacing ring in cylinder bore not needing reconditioning, check ring end gap at lower part of cylinder that is less worn.
  2. Check compression ring and oil ring end gap. See PISTONS  , PINS & RINGS table. 3) Install oil ring first without using a ring expander. Spacer expander gap should be installed 90 degrees from side rail gaps. Rails should turn smoothly when installed. See Fig 1 .
Fig 1: Positioning Piston Ring End Gaps
G80637Courtesy of GENERAL MOTORS CORP.
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