Hyundai Sonata LF Quiz
Engine Mechanical System

Timing Chain Repair Procedures

In this manual: Engine Mechanical System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
17steps
~102min
4/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 17

Removal

  1. Turn the crankshaft pulley clockwise and align its groove with the alignment mark on the timing chain cover.
  2. Remove the timing chain cover. (Refer to Valve Timing - Timing Chain Cover)
  3. Align the timing marks of the CVVT sprockets with the upper surface of the cylinder head so that No. 1 cylinder is at TDC.
    Make sure the crankshaft locating pin is pointing up toward the engine at this time.
  4. Remove the timing chain (A).
    Before removing the tensioner, lock the tensioner plunger in the compressed position with a pin through the hole (B).
  5. Remove the timing chain tensioner arm (A) and the chain guide (B).
  6. Remove the timing chain (A).

Inspection

Sprockets, hydraulic tensioner, chain guide, tensioner arm, timing chain
  1. Inspect the CVVT sprocket and crankshaft sprocket teeth for abnormal wear, cracks, or damage. Replace if necessary.
  2. Inspect the contact surfaces of the timing chain tensioner lever and guide for excessive wear, cracks, or damage. Replace if necessary.
  3. Inspect the hydraulic tensioner for plunger movement and ratchet operation. Replace if necessary.
  4. Inspect the timing chain for elongation, excessive wear, or damage. Replace if necessary.

Installation

  1. The crankshaft locating pin should be at an angle of 3° relative to the vertical centerline.
  2. Align the TDC marks (A) of the CVVT sprockets with the upper surface of the cylinder head so that No. 1 cylinder is at TDC.
  3. Install new O-rings (A).
  4. Install the timing chain guide (A) and the timing chain (B).

    Tightening torque: 9.8 ~ 11.8 N·m
    • When installing the timing chain, align the alignment marks on the sprockets with the paint marks on the chain.
    • Order: Crankshaft sprocket > Timing chain guide > Intake CVVT sprocket > Exhaust CVVT sprocket.
  5. Install the timing chain tensioner arm (A).

    Tightening torque: 9.8 ~ 11.8 N·m

  6. Install the hydraulic tensioner (A) and remove the pin (B).

    Tightening torque: 9.8 ~ 11.8 N·m
    Check the top dead center (TDC) marks on the crankshaft and camshafts once more.
  7. Install the timing chain cover.

Test yourself

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