Timing Belt: Installation

1. Temporarily install the camshaft sprocket bolt (C).
2. Hold the portion (A) of the camshaft with a hexagonal wrench, and tighten the bolt (C) with a wrench (B).

   Tightening torque : 

   78.5~98.1N.m (8.0~10.0kgf.m, 57.9~72.3lb-ft)

   Fig 1: Identifying Camshaft Portion

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1. Install the cylinder head cover (A) and bolts (B).

   Tightening torque : 

   7.8~9.8N.m (0.8~1.0kgf.m, 5.8~7.2lb-ft)

   • 1.6 CVVT 
     Fig 2: Identifying Tightening Sequence Of Cylinder Head Cover Bolts

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2. Install the engine cover bracket (A).
   Fig 3: Identifying Engine Cover Bracket

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3. Install the PCV (Positive Crankcase Ventilation) hose (A) and breather hose (B) to the cylinder head cover.
   Fig 4: Identifying PCV Hose And Breather Hose

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4. Install the ignition coil.
   • 1.6 CVVT 
     Fig 5: Identifying Ignition Coil

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Tightening torque : 

42.2~53.9N.m (4.3~5.5kgf.m, 31.1~39.8lb-ft)

Fig 9: Identifying Timing Belt Idler And Bolt

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Crankshaft sprocket (A) → idler pulley (B) → camshaft sprocket (C) → timing belt tensioner (D).

Fig 11: Identifying Crankshaft Sprocket, Idler Pulley, Camshaft Sprocket And Timing Belt Tensioner

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1. Loosen the tensioner pulley mounting bolt and apply tension to the timing belt.
   Fig 12: Identifying Tensioner Pulley

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2. After checking the alignment between each sprocket and each timing belt tooth, tighten the mounting bolt (A) and (B) one by one.

   Tightening torque : 

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

3. Then recheck the belt tension.

   Verify that when the tensioner and the tension side of the timing belt are pushed in horizontally with a moderate force [approx. 49N (111b)], the timing belt cog end is aprox. 1/2 of the tensioner mounting bolt head radius (across flats) away from the bolt head center.

   Fig 13: Checking Belt Tension

   Courtesy of KIA MOTORS AMERICA, INC.
4. Timing belt tension measuring procedure (by a sonic tension gauge)

   Rotate crankshaft in clockwise direction to set 1st piston on top dead center (TDC) and rotate crankshaft in counterclockwise to 90° then measure the belt tension in the middle of tension side span (in arrow direction of above illustration) by free vibration method.

   CAUTION: Avoid rotating the crankshaft in a counter clockwise direction.
   Engine damage could occur.

   Conversion equation of frequency into tension: T = (4 / 9.8) xS² xMxWxf² / 100000000

   S: Measured belt span (mm)

   M: Unit weight of belt (gf/cm² )

   W: Belt width (mm)

   f: Transverse natural frequency of belt (Hz)

   TIMING BELT SPECIFICATIONS
   
   

   Item	Specifications
   S (mm)	249.6
   M (gf/cm2 )	0.4543
   W (mm)	22
   f (Hz)	70.4~87.9
   T (kgf)	16 ± 3.5

Tightening torque : 

7.8~9.8N.m (0.8~1.0kgf.m, 5.8~7.2lb-ft)

Fig 14: Identifying Timing Belt Lower Cover And Bolts

Courtesy of KIA MOTORS AMERICA, INC.

Make sure that crankshaft sprocket pin fits the small hole in the pulley.

Tightening torque : 

137.3~147.1 N.m (14.0~15.0kgf.m, 101.3~108.5lb-ft)

Fig 15: Identifying Crankshaft Pulley

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Tightening torque : 

7.8~9.8N.m (0.8~1.0kgf.m, 5.8~7.2lb-ft)

Fig 16: Identifying Timing Belt Upper Cover And Bolts

Courtesy of KIA MOTORS AMERICA, INC.

Tightening torque : 

88.3~98.1 N.m (9.0~10.0kgf.m, 65.1~72.3lb-ft)

Tightening torque : 

3.9~5.9N.m (0.4~0.6kgf.m, 2.9~4.3lb-ft)

Fig 19: Identifying Engine Cover

Courtesy of KIA MOTORS AMERICA, INC.