LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 1993 >> Paseo Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Overhaul - A-240E/L, A-244L & A-245E) >> Component Disassembly & Reassembly >> Oil Pump >> Inspection

Oil Pump: Inspection

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1992 Geo Prizm, 1991 Toyota MR2, 1991 Toyota Corolla, 1991 Geo Prizm, and 1990 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. Note position of oil pump gears. Clean all parts with solvent. Dry parts using compressed air. Ensure oil passages are clear. Check driven gear-to-body clearance. Push driven gear against one side of oil pump. Measure clearance between driven gear and oil pump body. See Figure. Replace oil pump body if clearance is not within specification. See OIL PUMP CLEARANCE SPECIFICATIONS .
  2. Measure tip clearance between driven gear and crescent-shaped part of oil pump body. See Figure. Replace oil pump body if clearance is not within specification. See OIL PUMP CLEARANCE SPECIFICATIONS .
  3. Using feeler gauge and straightedge, measure side clearance of both gears. See Figure. Replace oil pump body if clearance is not within specification. See OIL PUMP CLEARANCE SPECIFICATIONS . Gears are available in 3 different thicknesses. See DRIVE & DRIVEN GEAR THICKNESS SPECIFICATIONS .
    DRIVE & DRIVEN GEAR THICKNESS SPECIFICATIONS

    Identifying Mark Thickness - In. (mm)
    A-240E, A-240L & A-243L
    "A" .371-.372 (9.44-9.46)
    "B" .372-.373 (9.46-9.47)
    "C" .373-.374 (9.47-9.49)
    A-241L & A-241E
    N/A .422 (10.72)
    A-244E
    N/A .373 (9.47)
  4. Using a dial indicator, measure inside diameter of oil pump body bushing. Maximum inside diameter should be 1.503" (38.18 mm). If inside diameter exceeds specification, replace oil pump body.
  5. Measure inside diameter of stator shaft bushings. Maximum front side bushing inside diameter should be .849" (21.57 mm). Maximum rear side bushing inside diameter should be 1.066" (27.07 mm). If inside diameter exceeds specification, replace stator shaft.
OIL PUMP CLEARANCE SPECIFICATIONS

Application In. (mm)
Driven Gear-To-Pump Body
Standard .0028-.0059 (.071-.149)
Maximum .012 (.30)
Gear-To-Crescent
Standard .0043-.0055 (.109-.139)
Maximum .012 (.30)
Gear Side Clearance
Standard .0008-.0020 (.020-.050)
Maximum .004 (.10)
scientia non olet · About LEMON Manuals