CVVT And Camshaft: Inspection: Camshaft

Using a micrometer, measure the cam lobe height.

Cam height 

Intake: 38.5 mm (1.5157 in.)

Exhaust: 37.6 mm (1.4803 in.)

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Inspect the cam lobe surface for abnormal wear and damage. Replace if necessary.

1. Clean the bearing caps and camshaft journals.
2. Place the camshafts on the cam carrier.
3. Lay a strip of plastic gauge across each of the camshaft journal.

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4. Install the LH camshaft front bearing cap (A) and camshaft bearing cap (B).

   Tightening torque: 

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

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   NOTE:

   • Be careful not to change the position and direction of LH camshaft front bearing cap and camshaft bearing cap.
   • Do not turn the camshaft.
   • Install the camshaft bearing caps in the sequence shown.
   Fig 1: Camshaft Bearing Caps Bolts Tightening Sequence

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5. Install the RH camshaft front bearing cap (A) and camshaft bearing cap (B).

   Tightening torque: 

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

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   NOTE:

   • Be careful not to change the position and direction of RH camshaft front bearing cap and camshaft bearing cap.
   • Do not turn the camshaft.
   • Install the camshaft bearing caps in the sequence shown.
   Fig 2: Camshaft Bearing Caps Bolts Tightening Sequence

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6. Remove the camshaft bearing caps.
7. Measure the plastic gauge at its widest point.

   Bearing oil clearance 

   [Standard value]

   Intake:

   No. 1: 0.034 - 0.062 mm (0.0013 - 0.0024 in.)

   No. 2, 3, 4: 0.033 - 0.061 mm (0.0013 - 0.0024 in.)

   Exhaust:

   No. 1: 0.034 - 0.062 mm (0.0013 - 0.0024 in.)

   No. 2, 3, 4: 0.033 - 0.061 mm (0.0013 - 0.0024 in.)

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   If the oil clearance is greater than maximum value, replace the camshaft. If necessary, replace the cam carrier.

8. Completely remove the plastic gauge.
9. Remove the camshaft.

1. Install the camshaft on the cam carrier.
2. Install the LH camshaft front bearing cap (A) and camshaft bearing cap (B).

   Tightening torque: 

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

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   NOTE:

   • Be careful not to change the position and direction of LH camshaft front bearing cap and camshaft bearing cap.
   • Install the camshaft bearing caps in the sequence shown.
   Fig 3: Camshaft Bearing Caps Bolts Tightening Sequence

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3. Install the RH camshaft front bearing cap (A) and camshaft bearing cap (B).

   Tightening torque: 

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

   Courtesy of HYUNDAI MOTOR AMERICA

   NOTE:

   • Be careful not to change the position and direction of RH camshaft front bearing cap and camshaft bearing cap.
   • Install the camshaft bearing caps in the sequence shown.
   Fig 4: Camshaft Bearing Caps Bolts Tightening Sequence

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4. Using a dial gauge, measure the end play while moving the camshaft back and forth.

   Camshaft end play 

   Intake: 0.04 - 0.18 mm (0.0016 - 0.0071 in.)

   Exhaust: 0.04 - 0.18 mm (0.0016 - 0.0071 in.)

   [LH] 

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   [RH] 

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   If the end play is greater than maximum value, replace the camshaft. If necessary, replace the cam carrier.

5. Remove the camshaft.