Hyundai Elantra AD: Lubrication System - Engine Mechanical System - Hyundai Elantra AD 2017-2020 Service ManualHyundai Elantra AD: Lubrication System

Components and Components Location

Components

1. Timing chain cover
2. Outer roter
3. Inner roter
4. Oil pump cover
5. Relief plunger
6. Relief spring
7. Relief plug
 8. O-ring (suction side)
9. O-ring (discharge side)
10. Oil screen gasket
11. Oil screen
12. Oil pan
13. Oil filter
14. Oil pressure switch (OPS)

Flow Diagram

Engine Oil Schemetics

Engine Oil Repair procedures

Oil And Filter Replacement
  
• Prolonged and repeated contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may cause skin cancer.
• Exercise caution in order to minimize the length and frequency of contact of your skin to used oil. Wear protective clothing and gloves. Wash your skin thoroughly with soap and water, or use water-less hand cleaner, to remove any used engine oil. Do not use gasoline, thinners, or solvents.
• In order to preserve the environment, used oil and used oil filter must be disposed of only at designated disposal sites.

1. Park the car on level ground.
2. Drain engine oil.
(1) Remove the oil filler cap.
(2) After lifting the car, remove the oil drain plug (A) and drain oil into a container.

3. Replace the oil filter (A).
(1) Using the SST (09263-2E000), remove the oil filter.
(2) Check and clean the oil filter installation surface.
(3) Check the part number of the new oil filter is as same as old one.
(4) Apply clean engine oil to the gasket of a new oil filter.
(5) Lightly screw the oil filter into place, and tighten it until the gasket contacts the seat.
(6) Tighten it with the torque below.
Tightening torque :

11.8 ~ 15.7 N.m (1.2 ~ 1.6 kgf.m, 8.7 ~ 11.6 lb-ft)

4. Install the oil drain plug with a new gasket.
Tightening torque :

34.3 ~ 44.1 N.m (3.5 ~ 4.5 kgf.m, 25.3 ~ 32.5 lb-ft)
5. Fill with new engine oil, after removing the engine oil level gauge.
Capacity

Total:

4.5 L (1.19 U.S.gal., 4.76 U.S.qt., 3.96 lmp.qt.)

Oil pan: 3.7 L (0.98 U.S.gal., 3.91 U.S.qt., 3.26 lmp.qt.)

Drain and refill including oil filter:

4.0 L (1.06 U.S.gal., 4.23 U.S.qt., 3.52 lmp.qt.)
6. Install the oil filler cap.
7. Start engine and check for oil leaks and check the oil gauge or light for an indication of oil pressure.
8. Recheck the engine oil level.
Inspection
1. Check the engine oil quality.

Check the oil deterioration, entry of water, discoloring of thinning. If the quality is visibly poor, replace the oil.

2. Check the engine oil level.

After engine warm up stop the engine wait 5 minutes then check the oil level. Oil level should be between the "L" and "F" marks on the dipstick. If low check for leakage and add oil up to the "F" mark.

  
• Do not fill with engine oil above the "F" mark.
Selection of Engine Oil

Specifications :

5W-20 / API SM& ILSAC GF-4 (or above) / ACEA A5 (or above)
  
• API SL, ILSAC GF-3, ACEA A3 Class engine oil can be used if the recommended engine oil is not available.
Allowed SAE Viscosity

  
• For best performance and maximum protection of all types of operation, select only those lubricants which:
1. Satisfy the requirement of the ILSAC (API) or ACEA classification.
2. Have proper SAE grade number for expected ambient temperature range.
3. Lubricants that do not have both an SAE grade number and ILSAC (API) or ACEA service classification on the container should not be used.

Oil Pan Components and Components Location

Components

1. Oil screen gasket
2. Oil screen
 3. Oil pan

Oil Pan Repair procedures

Removal
1. Remove the engine room under cover.

(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover")
2. Drain engine oil.

(Refer to Lubrication System - "Engine Oil")
3. Remove the oil pan (A).
(1) Unfasten the bolts.
(2) Insert the blade of SST (09215-3C000) between the lower crankcase and the oil pan. Separate the applied sealer and remove the oil pan.
  
• Loosen one oil pan bolt near each corner of the oil pan leaving the bolts held in by about 2 threads. Then remove all other pan bolts.
  
• Insert the SST between the oil pan and the lower crankcase by tapping it with a plastic hammer in the direction of arrow.
• After tapping the SST with a plastic hammer along the direction of arrow around more than 2/3 edge of the oil pan, remove it from the lower crankcase.
• Do not turn over the SST abruptly without tapping. It is result in damage of the SST.
• Be careful not to damage the contact surfaces of the lower crankcase and the oil pan.
4. Remove the oil screen (A) with the gasket (B).
Installation
1. Install the oil screen (A) with a new gasket (B).
Tightening torque

Bolt :

19.6 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ~ 19.5 lb-ft)

Nuts :

11.8 ~ 13.7 N.m (1.2 ~ 1.4 kgf.m, 8.7 ~ 10.1 lb-ft)

2. Install the oil pan.
(1) Using a gasket scraper, remove all the old packing material from the gasket surfaces.
(2) The sealant locations on the oil pan and the lower crankcase must be free of harmful foreign materials, oil, dust and moisture.

Spraying cleaner on the surface and wiping with a clean duster.

(3) After applying liquid sealant on the oil pan, assemble it within 5 minutes after sealant was applied. Continuous bead of sealant should be applied to prevent any path of oil leakage.
Bead width

Whole section :4.0 ~ 5.0 mm (0.16 ~ 0.20 in.)

Section A : 1.5 ~ 2.5 mm (0.06 ~ 0.10 in.)

Sealant: Threebond 1217H (Hyundai Gray RTV)

  
• When applying sealant gasket, sealant must not be protruded into the inside of oil pan.
• If the sealant is applied to the bottom surface of the lower crankcase, it should be the same position as the oil pan.
(4) Install the oil pan (A). Uniformly tighten the bolts in several passes.
Tightening torque:

11.8 ~ 13.7 N.m (1.2 ~ 1.4 kgf.m, 8.7 ~ 10.1 lb-ft)

  
• After assembly, wait at least 30 minutes before filling the engine with oil.
  
• Always use a new drain plug gasket.
3. Refill engine with engine oil.

Oil Pump Components and Components Location

Components

1. Timing chain cover
2. Outer roter
3. Inner roter
4. Oil pump cover
5. Relief plunger
 6. Relief spring
7. Relief plug
8. O-ring (suction side)
9. O-ring (discharge side)

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 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)

2. Install in the reverse order of removal.
  
• When installing the oil pressure switch, apply seal lock to the thread.
Seal lock : THREEBOND 2403

Thickness : 0.2 ~ 0.4 mm (0.008 ~ 0.016 in.)

Inspection
1. Check the continuity between the terminal and the body with an ohmmeter.

If there is no continuity, replace the oil pressure switch.
2. Check the continuity between the terminal and the body when the fine wire is pushed. If there is continuity even when the fine wire is pushed, replace the switch.
3. If there is no continuity when a 50 kPa (0.50 kgf/cm?, 7.25 psi) is applied through the oil hole, the switch is operaing properly.

Check for air leakage. If air leaks, the diaphragm is broken. Replace it.

Oil Level Gauge & Pipe Repair procedures

Removal and Installation
1. Remove the oil level gauge (A).
2. Install in the reverse order of removal.
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