Hyundai Elantra: Lubrication System / Oil Pump Repair procedures

Removal and Installation
1.
Remove the timing chain cover.
(Refer to Timing System – “Timing Chain Cover”)
2.
Remove the oil pump cover (A).

Tightening torque
Screws :
5.9 ~ 8.8 N.m (0.6 ~ 0.9 kgf.m, 4.3 ~ 6.5 lb-ft)
Bolts :
8.8 ~ 13.7 N.m (0.9 ~ 1.4 kgf.m, 6.5 ~ 10.1 lb-ft)

3.
Remove the inner rotor (A) and outer rotor (B).

4.
Install in the reverse order of removal.
Inspection
1.
Remove the relief plunger.
Remove the plug (A), spring (B) and relief plunger (C).

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

2.
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.
3.
Inspect the relief valve spring.
Inspect for distortion or breakdown of the relief valve spring.
4.
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.)

5.
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.)

6.
Inspect the rotor guide clearance.
(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.


Guide clearance:
0.030 ~ 0.075 mm (0.00118 ~ 0.00295 in.)

Oil Pump Components and Components Location
Components 1. Timing chain cover2. Outer roter3. Inner roter4. Oil pump cover5. Relief plunger6. Relief spring7. Relief plug8. O-ring (suction side)9. O-ring (discharge side) ...

Oil Pressure Switch Repair procedures
Removal and Installation 1. Disconnect the oil pressure switch connector (A) and then remove the oil pressure switch (B). Tightening torque : 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft) ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Electric Thermostat (ECT) Troubleshooting
Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting nuts • Check the torque of the mounting nuts • Retighten the bolts and check leakage again. Check the gasket for damage • Check gasket or seal for damage ...

Hyundai Elantra AD (2016-2020) Service Manual: LKAS Unit Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the LDWS unit cover (A). 3. Disconnect the LKAS unit connector (A). 4. Remove the LKAS unit after disengaging the mounting bracket (A). Installation 1. Align LDWS unit with windshield bracket using forward edge p ...

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