Checking the technical condition of the lubrication system of the G6BA engine (Hyundai Tucson JM)

1. Check the pressure reducing valve. Lubricate the plunger with engine oil and check the smoothness of its movement in the hole. If a defect is found, replace the plunger.

2. Check the pressure reducing valve spring for damage. Measure the length of the spring in a free state and under load; if the dimensions do not correspond to the specified ones, replace the spring. The length in a free state is 43.8 mm, under a load of 4.6 kg - 39.1 mm.

3. Using a ruler and feeler gauge, measure the gap between the pump rotor and the cover. The permissible gap value is 0.040-0.095 mm. If the gap exceeds the permissible value, it is necessary to replace the oil pump rotor.



4. Using a feeler gauge, measure the gap between the rotor and the oil pump housing. The permissible gap value is 0.100-0.181 mm. If the gap exceeds the permissible value, it is necessary to replace the oil pump rotor.



5. Using a feeler gauge, measure the gap between the inner and outer rotor. The permissible gap value is 0.025 - 0.069 mm.