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Home >> Mazda >> 2004 >> B4000 Base, Standard >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - Overhaul >> Piston And Connecting Rod Disassembly/Assembly >> Assembly Note
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Assembly Note

  1. Lubricate the new piston pin and new piston pin bore.
    • Use SAE 5W20 engine oil.
    Fig 1: Lubricating Piston Pin For Installation
    G02821332Courtesy of MAZDA MOTORS CORP.
    2. NOTE:
    • During assembly the small end of the connecting rod must be heated to 232°-316°C (450°-600°F).
    Fig 2: Pressing Piston Pin Into Piston & Connecting Rod
    G02821333Courtesy of MAZDA MOTORS CORP.
  2. Using Piston Pin Tool SST 303-D034 or equivalent, press the piston pin into the piston and the connecting rod.
    3. NOTE:
    • Lubricate the piston and the piston rings with SAE engine oil 5W20.
    NOTE:
    • Use a suitable ring expander to install the piston rings. Ensure ring end gaps are equally spaced around the circumference of the piston for all piston rings.
    Fig 3: Installing Second Oil Control Ring
    G02821334Courtesy of MAZDA MOTORS CORP.
  3. Install the second oil control ring.
  4. Install the oil control spacer ring.
    Fig 4: Installing Oil Control Spacer Ring
    G02821335Courtesy of MAZDA MOTORS CORP.
  5. Install the first oil control ring.
    Fig 5: Installing First Oil Control Ring
    G02821336Courtesy of MAZDA MOTORS CORP.
  6. Install the second compression ring.
    Fig 6: Installing Second Compression Ring
    G02821337Courtesy of MAZDA MOTORS CORP.
  7. Install the top compression ring.
    Fig 7: Installing Top Compression Ring
    G02821338Courtesy of MAZDA MOTORS CORP.
  8. Check piston ring end gap and ring-to-groove side clearance. Refer to PISTON INSPECTION .
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