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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1353 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston and Connecting Rod Assemble

Piston and Connecting Rod Assemble

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Piston And Connecting Rod Marks
    GM236258Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Install the piston onto the connecting rod with the marks (1) oriented toward the front of the engine.
  1. Coat the piston pin with engine oil.
    2. Fig 2: Removing Piston Pin And Connecting Rod
    GM261987Courtesy of GENERAL MOTORS CORP.
  2. Push the piston pin into the piston pin bore by hand.
  3. Assemble the connecting rod and the piston.
    4. Fig 3: Removing Piston Snap Rings
    GM236253Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure that the end gap of the piston pin snap ring is not aligned with the pin hole cutout portion of the piston.
  4. Install new snap rings using a small screwdriver.
    5. NOTE: Use a piston ring expander to install the piston rings. The rings may be damaged if expanded more than necessary.
    Fig 4: Removing Piston Rings
    GM236178Courtesy of GENERAL MOTORS CORP.
  5. Install the following components of the oil control ring assembly (bottom ring) :
    1. The expander
    2. The lower oil control ring
    3. The upper control ring
  6. Install the lower compression ring (second ring). Place the manufacturer's mark facing up.
  7. Install the upper compression ring (top ring). Place the manufacturer's mark facing up.
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