1. INSPECT DRIVEN ROTOR BODY CLEARANCE
(a) Install the drive rotor and driven rotor to the rear extension housing.
(b) Using a feeler gauge, measure the body clearance between the drive rotor and extension housing.
Standard clearance: 0.08 - 0.17 mm (0.0031 - 0.0067 in.) Maximum clearance: 0.17 mm (0.0067 in.)
If the body clearance exceeds the maximum, replace the drive rotor and driven rotor.
2. INSPECT DRIVEN ROTOR TIP CLEARANCE
Using a feeler gauge, measure the tip clearance between the drive rotor and driven rotor.
Standard clearance: 0.05 - 0.15 mm (0.0020 - 0.0059 in.) Maximum clearance: 0.15 mm (0.0059 in.)
If the tip clearance exceeds the maximum, replace the drive rotor and driven rotor.
3. INSPECT OIL PUMP SIDE CLEARANCE
Using a steel straight edge and feeler gauge, measure the side clearance of oil pump.
Standard clearance: 0.03 - 0.10 mm (0.0012 - 0.0039 in.) Maximum clearance: 0.10 mm (0.0039 in.)
If the side clearance exceeds the maximum, replace the drive rotor and driven rotor.