Inspection
INSPECTION1. CAMSHAFT
1) Measure the bend, and repair or replace if necessary.
Limit:
0.025 mm (0.0010 in)
2) Check journal for damage and wear. Replace if faulty.
3) Measure outside diameter of camshaft journal and inside diameter of cylinder head journal, and determine the difference between the two (= oil clearance). If oil clearance exceeds specifications, replace camshaft or cylinder head as necessary.
4) Check cam face condition; remove minor faults by grinding with oil stone. Measure the cam height H; replace if the limit has been exceeded.
Cam height: H
Standard
IN: 31.994 - 32.094 mm (1.2596 - 1.2635 in)
EX: 32.624 - 32.724 mm (1.2844 - 1.2883 in)
Limit
IN: 31.844 mm (1.2537 in)
EX: 32.474 mm (1.2785 in)
2. CAMSHAFT SUPPORT
Measure the thrust clearance of camshaft with dial gauge.
If the clearance exceeds the limit, replace camshaft support.
Standard:
0.030 - 0.260 mm (0.0012 - 0.0102 in)
Limit:
0.35 mm (0.0138 in)