Overhaul

DISASSEMBLY

RELIEF PLUNGER
1. Remove the relief plunger.
Remove the plug(A), spring(B) and relief plunger(C).






INSPECTION

1. Inspect the relief plunger.
Coat the plunger with engine oil and check that it falls smoothly into the plunger hole by its own weight.
If it does not, replace the relief plunger. If necessary, replace the front case.
2. Inspect the relief valve spring.
Inspect for distorted or broken relief valve spring.

Standard value Free height : 46.6mm (1.8346in) / Load : 6.1±0.4kg/40.1mm (13.4±0.9 lb/1.5787in)

3. Inspect the rotor side clearance.
Using a feeler gauge and precision straight edge, measure the clearance between the rotors and precision straight edge.









If the side clearance is greater than maximum, replace the rotors as a set. If necessary, replace the front case.
4. Inspect the rotor tip clearance.
Using a feeler gauge, measure the tip clearance between the inner and outer rotor tips.

Tip clearance0.025 - 0.069mm (0.0010 - 0.0027in)




If the tip clearance is greater than specified, replace the rotors as a set.
5. Inspect the rotor body clearance.
Using a feeler gauge, measure the clearance between the outer rotor and body.

Body clearance0.060 - 0.090mm (0.0024 - 0.0035in)




If the body clearance is greater than specified, replace the rotors as a set. If necessary, replace the front case.

REASSEMBLY

RELIEF PLUNGER
1. Install the relief plunger.
Install relief plunger(C) and spring(B) into the front case hole, and install the plug(A).

Tightening torque : 39.2 - 49.0N.m (4.0 - 5.0kgf.m, 28.9 - 36.2lb-ft)