Kia Optima Manuals

Kia Forte: CVVT & Camshaft Removal - Cylinder Head Assembly - Engine Mechanical System - Kia Forte TD 2014-2018 Service ManualKia Forte: CVVT & Camshaft Removal

Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Engine Mechanical System / Cylinder Head Assembly / CVVT & Camshaft Removal

  
•
Use fender covers to avoid damaging painted surfaces.
•
To avoid damage, unplug the wiring connectors carefully while holding the connector portion.
  
•
Mark all wiring and hoses to avoid misconnection.
•
Turn the crankshaft pulley so that the No. 1 piston is at top dead center.
Timing chain cover removal is not required for this procedure.
1.
Remove the cylinder head cover.
(Refer to Cylinder Head Assembly - “Cylinder Head Cover”)
2.
Set No.1 cylinder to TDC (Top dead center) on compression stroke.
(1)
Turn the crankshaft pulley and align its groove with the timing mark of the timing chain cover.

(2)
Check that the TDC marks of the intake and exhaust CVVT sprockets are in straight line on the cylinder head surface as shown in the illustration. If not, turn the crankshaft by one revolution (360°) more.

(3)
Mark the timing chains corresponding to the timing marks of the CVVT sprockets.

3.
Remove the crankshaft damper pulley.
(Refer to Timing System - “Crankshaft Damper Pulley”)
4.
Remove the service plug bolt (A) with the gasket (B).

5.
Remove the tensioner arm bolt (A).

6.
Push down the tensioner arm (A).

7.
Remove the camshaft bearing caps.

8.
Remove the exhaust camshaft (A) first, then intake camshaft (B).
9.
Remove the tensioner arm (A).

  
To hold the timing chain, tie it with strap.
10.
Remove the CVVT assembly (A) from the camshaft.

  
When removing the CVVT assembly bolt, hold the camshaft with a wrench to prevent the camshaft from rotating.
[CVVT System Mode]
(1) Low Speed / Low Load (2) Part Load (3) Low Speed / High Load (4) High Speed / High Load ...

CVVT & Camshaft Inspection
Camshaft 1. Inspect the cam lobes. Using a micrometer, measure the cam lobe height. If the cam lobe height is less than specification, replace the camsh ...

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