Repair procedures: Inspection

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

Fig 1: Identifying Plug, Spring And Relief Plunger

Courtesy of HYUNDAI MOTOR AMERICA

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 for distortion or breakdown of the relief valve spring.

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.)

Fig 2: Inspecting Rotor Side Clearance

Courtesy of HYUNDAI MOTOR AMERICA

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.)

Fig 3: Inspecting Rotor Body Clearance

Courtesy of HYUNDAI MOTOR AMERICA

1. Measure the outer diameter of the inner rotor guide.

   Inner rotor diameter: 

   41.550 ~ 41.570 mm (1.63582 ~ 1.63661 in.)

2. 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.)

3. Check the clearance between the timing chain cover hole inner diameter and the inner rotor guide outer diameter.
   Fig 4: Identifying Clearance Between Timing Chain Cover Hole Inner Diameter And Rotor Guide Outer Diameter

   Courtesy of HYUNDAI MOTOR AMERICA

Guide clearance: 

0.030 ~ 0.075 mm (0.00118 ~ 0.00295 in.)