Oil Pump Inspection

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: Checking 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: Checking 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: Checking Clearance Between Driven Gear And 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: Checking Radial Clearance Between Driven And 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: Checking Side Clearance Between Gears And Oil Pump Body

Courtesy of SUZUKI OF AMERICA CORP.