For 1990-2009 cars

1. Measure the camshaft lift.
2. Replace the camshaft if the measured value is not as specified.

Specification
The specification is 46.3 mm (1.8228 in).

3. Measure the outer diameter of each journal (1) at the 4 different places.
4. Replace the camshaft if the measured value is not as specified.

Specification
The specification is 27.939-27.960 mm (1.1000-1.1008 in).

5. Measure the straightness of the camshaft using a dial gage.
6. Replace the camshaft if the measured value is over the specified limit.

Specification
The specification limit is 0.04 mm (0.0016 in).

7. Measure the camshaft endplay using a dial gage.
8. Replace the camshaft if the measured value is over the specified limit.

Specification
The specification limit is 0.130-.215 mm (0.0051-.0085 in).

9. Measure the inner diameter of the cylinder head journal at the 2 places.

Specification
The specification limit is 28.000-28.021 mm (1.1024-1.1032 in).

10. If necessary, replace cylinder head.