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Home >> Mitsubishi >> 2001 >> Eclipse RS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (3.0L V6) >> Overhaul >> Cylinder Block Assembly >> Piston & Rod Assembly

Piston & Rod Assembly

WARNING: This page is about a different variant/trim than selected.
  1. Remove cylinder heads and oil pan. See CYLINDER HEAD  and OIL PAN  under REMOVAL & INSTALLATION. Remove cylinder ridge. Mark connecting rod and cap for cylinder identification and remove rod cap.
  2. Note front mark on piston and connecting rod. See Fig 1. Mark is positioned toward timing belt side of engine. Remove rod and piston assembly.
  3. Piston ring end gap and side clearance must be within specification. See PISTONS, PINS & RINGS  table under ENGINE SPECIFICATIONS. Install rings onto piston with ring code identification marks toward top of piston. Top ring is marked 1R, and No. 2 ring is marked 2R. Lubricate piston, rings, and cylinder bore with engine oil.
    NOTE: Front mark "R" on piston indicates installation in cylinders No. 1, 3, and 5; front mark "L" indicates installation in cylinders No. 2, 4, and 6. Ensure front mark on piston and connecting rod are toward timing belt side of engine. See Fig 1.
  4. Distribute ring end gaps properly around piston. See Fig 1. Install piston and rod into cylinder bore, with front mark toward timing belt side of engine.
  5. Measure bearing clearance using Plastigage. Tighten rod cap nuts to specification. See TORQUE SPECIFICATIONS . Connecting rod must move freely on crankshaft. Measure connecting rod side play. Repair or replace connecting rod if not within specification. See CONNECTING RODS  table under ENGINE SPECIFICATIONS.
Fig 1: Aligning Piston & Rings
G96J18951Courtesy of MITSUBISHI MOTOR SALES OF AMERICA, INC.