Repair Procedures: Inspection: Camshaft

Using a micrometer, measure the cam lobe height.

Cam height 

[Standard value]

Intake: 44.10 - 44.30 mm (1.7362 - 1.7440 in.)

Exhaust: 44.90 - 45.10 mm (1.7677 - 1.7756 in.)

Courtesy of KIA MOTORS AMERICA, INC.

If the cam lobe height is less than standard, replace the camshaft.

1. Clean the bearing caps and camshaft journals.
2. Place the camshafts on the cylinder head.
3. Lay a strip of plastigage across each of the camshaft journal.

   Courtesy of KIA MOTORS AMERICA, INC.

4. Install the bearing caps.
   NOTE: Do not turn the camshaft.
5. Remove the bearing caps.
6. Measure the plastigage at its widest point.

   Bearing oil clearance 

   [Standard value]

   Intake:

   No. 1: 0.029 - 0.057 mm (0.00114 - 0.00224 in.)

   No. 2, 3, 4, 5: 0.037 - 0.067 mm (0.00146 - 0.00264 in.)

   Exhaust:

   No. 1: 0.004 - 0.036 mm (0.00016 - 0.00142 in.)

   No. 2, 3, 4, 5: 0.037 - 0.067 mm (0.00146 - 0.00264 in.)

   Courtesy of KIA MOTORS AMERICA, INC.

   If the oil clearance is greater than maximum, replace the camshaft. If necessary, replace cylinder head.

7. Completely remove the plastigage.
8. Remove the camshafts.

1. Install the camshafts.
2. Using a dial indicator, measure the end play while moving the camshaft back and forth.

   Camshaft end play 

   [Standard value]: 0.04 - 0.16 mm (0.0016 - 0.0063 in.)

   Courtesy of KIA MOTORS AMERICA, INC.

   If the end play is greater than maximum, replace the camshaft. If necessary, replace cylinder head.

3. Remove the camshafts.