Oil Pump Inspection

Reference:  OIL PUMP DISASSEMBLY AND ASSEMBLY  

• Measure inside diameter of oil pump body bushing.

  If inside diameter exceeds limit, replace oil pump body.

  Oil pump body bushing inside diameter limit 

  38.188 mm (1.504 in.) 

  Fig 1: Measuring Inside Diameter Of Oil Pump Body Bushing

  Courtesy of SUZUKI OF AMERICA CORP.
• Measure inside diameter of stator shaft assembly bushing.

  If inside diameter exceeds limit, replace stator shaft assembly.

  Stator shaft assembly bushing inside diameter limit 

  Torque converter side: 21.577 mm (0.850 in.) 

  Output shaft side: 32.08 mm (1.263 in.) 

  Fig 2: Measuring Inside Diameter Of Stator Shaft Assembly Bushing

  Courtesy of SUZUKI OF AMERICA CORP.
• Check oil pump body clearance of driven gear.

  Push driven gear (1) to one side of oil pump body (2).

  Using a feeler gauge, measure clearance between driven gear (1) and oil pump body (2).

  If clearance exceeds standard value, replace oil pump assembly.

  Clearance between driven gear and oil pump body 

  Standard: 0.10 - 0.17 mm (0.004 - 0.007 in.) 

  Fig 3: Measuring Clearance Between Driven Gear & Oil Pump Body

  Courtesy of SUZUKI OF AMERICA CORP.
• Check tip clearance of driven gear.

  Measure radial clearance between driven and drive gears tooth tip.

  If clearance exceeds standard value, replace oil pump assembly.

  Tip clearance between driven gear and drive gear 

  Standard: 0.07 - 0.15 mm (0.003 - 0.006 in.) 

  Fig 4: Measuring Radial Clearance Between Driven & Drive Gears Tooth Tip

  Courtesy of SUZUKI OF AMERICA CORP.
• Check side clearance of both gears.

  Using a straightedge (1) and a feeler gauge, measure side clearance between gears and oil pump body.

  If clearance exceeds standard value, replace oil pump assembly.

  Side clearance between gears and oil pump body 

  Standard: 0.02 - 0.05 mm (0.0008 - 0.002 in.) 

  Fig 5: Measuring Side Clearance Between Gears & Oil Pump Body

  Courtesy of SUZUKI OF AMERICA CORP.