Repair Procedures: Inspection
- Remove the relief plunger.
Remove the plug (A), spring (B) and relief plunger (C).
- 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 necessary, replace timing chain cover.
- Inspect the relief valve spring.
Inspect for distortion or breakdown of the relief valve spring.
- Inspect the rotor side clearance.
Using a feeler gauge and precision straight edge, measure the clearance between the inner rotors and precision straight edge.
If the side clearance is greater than maximum, replace the rotors as a set.
If necessary, replace the timing chain cover.
Side clearance:
0.040 ~ 0.090 mm (0.00157 ~ 0.00354 in.)
- Inspect the rotor body clearance.
Using a feeler gauge, measure the clearance between the outer rotor and body.
If the body clearance is greater than maximum, replace the rotors as a set.
If necessary, replace the timing chain cover.
Body clearance:
0.200 ~ 0.292 mm (0.00787 ~ 0.01150 in.)
- Inspect the rotor guide clearance.
- Measure the outer diameter of the inner rotor guide.
Inner rotor diameter:
41.550 ~ 41.570 mm (1.63582 ~ 1.63661 in.)
- Measure the inner diameter of the timing chain cover hole.
Timing chain cover hole diameter:
41.600 ~ 41.625 mm (1.63779 ~ 1.63878 in.)
- Check the clearance between the timing chain cover hole inner diameter and the inner rotor guide outer diameter.Fig 4: Clearance Between Timing Chain Cover Hole Inner Diameter And Inner Rotor Guide Outer Diameter
Courtesy of HYUNDAI MOTOR AMERICA
Guide clearance:
0.030 ~ 0.075 mm (0.00118 ~ 0.00295 in.)
- Measure the outer diameter of the inner rotor guide.