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Home >> Suzuki >> 2012 >> Equator Base >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Accessory Drive Belts >> Engine Mechanical - Qr25DE >> Repair Instructions >> How to Select Piston and Bearing >> How To Select Main Bearing >> When New Cylinder Block and Crankshaft Are Used

When New Cylinder Block and Crankshaft Are Used

  1. "Main Bearing Selection Table" rows correspond to main bearing housing grade on rear-left side of cylinder block.
    Fig 1: Identifying Main Bearing Housing Grade And Cylinder Bore Grade
    G06440855Courtesy of SUZUKI OF AMERICA CORP.
    • If there is a corrected stamp mark on cylinder block, use it as a correct reference.
  2. Apply main journal diameter grade stamped on crankshaft front side to column in the "Main Bearing Selection Table".
    Fig 2: Identifying Crankshaft Pin Journal Diameter Grade And Main Journal Diameter Grade
    G06440856Courtesy of SUZUKI OF AMERICA CORP.
  3. Read the symbol at the cross point of selected row and column in the "Main Bearing Selection Table".
    CAUTION: There are two main bearing selection tables. One is for odd-numbered journals (No. 1, 3 and 5) and the other is for even-numbered journals (No. 2 and 4). Make certain to use the appropriate table. This is due to differences in the specified clearances.
  4. Apply the symbol obtained to the "Main Bearing Grade Table" to select main bearing.
    NOTE: Service part is available as a set of both upper and lower.
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