Repair Procedures: Installation

WARNING: This page is about a different car, the 2018 Kia Optima. However, it is still accessible from the selected car via links, so may be relevant.

The TDC marks of the intake and exhaust CVVT sprockets are slightly turned from the TDC position as shown when the timing chain is removed.

Fig 1: Turning TDC Marks Of Intake And Exhaust CVVT Sprockets From TDC Position
Courtesy of KIA MOTORS AMERICA, INC.
Turn the crankshaft clockwise (about 2 - 3 pitches) from the TDC position (the dowel pin (A) of crankshaft is about 3° with the engine vertical line) as rotation of the intake CVVT sprocket from the TDC position.

Fig 2: Turning Crankshaft Clockwise (2 - 3 Pitches) From TDC Position
Courtesy of KIA MOTORS AMERICA, INC.
Install the timing chain guide (A).
Tightening torque:

18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb.ft)

Fig 3: Installing Timing Chain Guide
Courtesy of KIA MOTORS AMERICA, INC.
Install the timing chain tensioner arm (A).
Tightening torque:

18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb.ft)

Fig 4: Installing Timing Chain Tensioner Arm
Courtesy of KIA MOTORS AMERICA, INC.
Install the timing chain.
Crankshaft sprocket (A) → Timing chain guide (B) → Intake CVVT sprocket (C) → Exhaust CVVT sprocket (D)
1. Install the timing chain with no slack between the crankshaft sprocket and the intake CVVT sprocket.
  
  Fig 5: Crankshaft Sprocket, Timing Chain Guide, Intake CVVT Sprocket And Exhaust CVVT Sprocket
  Courtesy of KIA MOTORS AMERICA, INC.
  
  NOTE: The timing marks of each sprocket should be matched with timing marks (color link) of timing chain when installing the timing chain.
2. Install the timing chain on the exhaust CVVT sprocket with no slack while turning the CVVT assembly clockwise.
  
  Fig 6: Turning CVVT Assembly Clockwise
  Courtesy of KIA MOTORS AMERICA, INC.
  NOTE:
  - The timing mark of the exhaust CVVT sprocket should be matched with timing mark (color link) of timing chain when installing the timing chain.
  - Press down the timing chain links on the exhaust CVVT sprocket to prevent the sprocket from spinning.
Install the timing chain auto tensioner (A) and remove the stopper pin (B).
Tightening torque:

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb.ft)

Fig 7: Installing Timing Chain Auto Tensioner
Courtesy of KIA MOTORS AMERICA, INC.
NOTE:
- When reinstalling the tensioner, check the ratchet function of the tensioner after removing the fixing pin by retracting the tensioner arm (A) to the maximum as shown below.
- When retracted to the maximum, there should be no interference between the tensioner arm (A) and tensioner housing (B).
  
  Fig 8: Checking Tensioner Arm And Tensioner Housing
  Courtesy of KIA MOTORS AMERICA, INC.
After rotating crankshaft 2 revolutions in regular direction (clockwise viewed from front), confirm that the TDC marks on the intake and exhaust CVVT sprockets are aligned with the top surface of cylinder head.

Fig 9: Aligning TDC Marks On Intake And Exhaust CVVT Sprockets With Top Surface Of Cylinder Head
Courtesy of KIA MOTORS AMERICA, INC.
Install the timing chain cover.
(Refer to Timing System - "TIMING CHAIN COVER ")
Install the cylinder head cover.
(Refer to Cylinder Head Assembly - "CYLINDER HEAD COVER ")
Add all the necessary fluids and check for leaks. Connect KDS/GDS. Check for codes, note, and clear. Recheck.

NOTE:

Refill engine with engine oil.
Clean battery posts and cable terminals and assemble (12 Volt only).
Inspect for fuel leakage.

After assembling the fuel line, switch on the ignition (without operating the starter) so that the fuel pump runs for approximately two seconds and fuel line pressurizes.
Repeat this operation two to three times, then check for fuel leakage at any point in the fuel line.