Camshaft

CAMSHAFT





1. Set the No.1 and No.5 journals on V-blocks.
2. Measure the camshaft runout. Replace the camshaft if necessary.

Runout: 0.03 mm (0.0012 in) max.





3. Measure the cam lobe heights at the two points as shown.

Height








4. Measure the journal diameters in X and Y directions at the two points (A and B) shown. Replace the camshaft if necessary.

Diameter
Standard: 25.940-25.965 mm (1.0213-1.0222 in)
Minimum: 25.910 mm (1.0201 in)





5. With the HLA removed, measure the camshaft journal oil clearances as follows.
1) Position plastigauge atop the journals in the axial direction.
2) Do not rotate the camshaft when measuring the oil clearances.
3) Install the camshaft caps and tighten the camshaft cap bolts.
4) Loosen the camshaft cap bolts and remove the bolts.
5) Remove the camshaft caps.





6) Measure the oil clearance.

Oil clearance:
0.035-0.081 mm (0.0014-0.0031 in)
Maximum: 0.15 mm (0.0059 in)

7) If the oil clearance exceeds the specification, replace the camshaft or the cylinder head.





6. Install the front camshaft cap.
7. Measure the camshaft end play. If it exceeds the maximum, replace the cylinder head or camshaft.

End play
Standard: 0.057-0.127 mm (0.0023-0.0049 in)
Maximum: 0.20 mm (0.0079 in)