Repair Procedures: Inspection

Using a micrometer, measure the cam lobe height.

Cam Height: 

[Standard Value]

Intake: 47.2 mm (1.8582 in.)

Exhaust: 45.4 mm (1.7874 in.)

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

If the journal is worn excessively, replace the camshaft.

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

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4. Install the bearing cap (A) and Thrust Bearing Cap (B) with specified torque.

   Tightening Torque: 

   1st step: 5.8 N.m (0.6 kgf.m, 4.3 lb-ft)

   2nd step:

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

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   Courtesy of HYUNDAI MOTOR AMERICA

   NOTE: Do not turn the camshaft.

   • Do not turn the camshaft.
   • Be careful not to mistake the thrust bearing cap (B) bolt for a common bearing cap (A) bolt.
5. Remove the bearing caps.
6. Measure the width of the plastigage at its widest point.

   Bearing Oil Clearance: 

   [Standard value]

   Intake

   No. 1: 0.037 - 0.067 mm (0.0014 - 0.0026 in.)

   No. 2, 3, 4 journal:

   0.030 - 0.058 mm (0.0012 - 0.0023 in.)

   Exhaust

   No. 1 journal: 0.028 - 0.058 mm (0.0011 - 0.0023 in.)

   No. 2, 3, 4 journal:

   0.030 - 0.058 mm (0.0012 - 0.0023 in.)

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   • If the oil clearance is greater than specification, replace the camshaft.
   • If the oil clearance is still greater than specification after camshaft replacement, replace the bearing caps and cylinder head a set.
7. Completely remove the plastic gauge.
8. Remove the camshafts.

1. Install the camshafts.
2. Install the bearing cap (A) and thrust bearing cap (B) with specified torque.

   Tightening Torque: 

   1st step: 5.8 N.m (0.6 kgf.m, 4.31 lb-ft)

   2nd step: 9.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

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   Courtesy of HYUNDAI MOTOR AMERICA

   NOTE:

   • Do not turn the camshaft.
   • Be careful not to mistake the thrust bearing cap (B) bolt for a common bearing cap (A) bolt.
3. Using a dial gauge, measure the end play while moving the camshaft back and forth.

   Camshaft End Play: 

   [Standard value]:

   Intake: 0.04 - 0.18 mm (0.0015 - 0.0070 in.)

   Exhaust: 0.02 - 0.18 mm (0.0008 - 0.0071 in.)

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   Courtesy of HYUNDAI MOTOR AMERICA

   • If the end play is greater than specification, replace the camshaft.
   • If the end play is still greater than specification after camshaft replacement, replace the bearing caps and cylinder head as a set.
4. Remove the camshafts.