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Home >> Toyota >> 2005 >> ECHO 2D Sedan, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission Overhaul - U340E & U341E) >> Component Disassembly & Reassembly >> Oil Pump Assembly >> Inspection

Oil Pump Assembly: Inspection

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  1. Check body clearance of driven gear. Push driven gear to one side of body. Using a feeler gauge, measure clearance. See Figure. Body clearance should be .004-.006" (.10-.15 mm). Maximum body clearance is .006" (.15 mm). If body clearance exceeds specification, replace oil pump body.
  2. Using a feeler gauge, check gear tip clearance. Measure between drive and driven gear teeth. See Figure. Tip clearance is .003-.006" (.07-.15 mm). Maximum tip clearance is .006" (.15 mm). If tip clearance exceeds specification, replace oil pump body.
  3. Check side clearance of both gears. Use a steel straightedge and feeler gauge to measure side clearance of both gears. See Figure. Clearance is .0008-.0020" (.020-.050 mm). Maximum side clearance is .0020" (.05 mm). Replace gears as necessary. If side clearance is not within specification after gear replacement, replace oil pump body.
  4. Using a dial indicator, measure inside diameter of oil pump body bushing. See Figure. Maximum inside diameter is 1.501" (38.14 mm). If inside diameter exceeds specification, replace oil pump body.
  5. Using a dial indicator, measure inside diameter of stator shaft bushing. See Figure. Maximum inside diameter is .847" (21.53 mm). If inside diameter exceeds specification, replace stator shaft.
  6. Inspect front oil seal for cracks, damage or wear. Replace oil seal (if necessary). Remove oil seal with slide hammer. Install a NEW oil seal. Seal is properly installed when it is flush with outer edge of pump body.
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