1. Measure the bend, and repair or replace if necessary.
Service limit:
0.025 mm (0.00098 in)
2. Check the journal for damage and wear. Replace if faulty.
3. Measure the outer diameter of camshaft journal and inner diameter of cylinder head journal, and check the difference (oil clearance) between the two values. If the oil clearance is not within the standard, replace the camshaft or cylinder head as necessary.
|
Unit: mm (in) | ||
|
Oil clearance |
Standard |
0.055 — 0.090 (0.0022 — 0.0035) |
|
Camshaft journal O.D. |
31.928 — 31.945 (1.2570 — 1.2577) | |
|
Journal hole I.D. |
32.000 — 32.018 (1.2598 — 1.2605) | |
4. Check the cam face condition, and remove the minor faults by grinding with oil stone. Measure the cam height H. If it is not within the standard or offset wear occurs, replace it.
Cam height H:
|
Unit: mm (in) | |||
|
Intake |
Constant |
Standard |
40.075 — 40.175 (1.5778 — 1.5817) |
|
Low speed |
Standard |
35.496 — 35.596 (1.3975 — 1.4014) | |
|
High speed |
Standard |
40.315 — 40.415 (1.5872 — 1.5911) | |
|
Exhaust |
Standard |
39.289 — 39.389 (1.5468 — 1.5507) | |
Cam base circle diameter A:
Intake
34.00 mm (1.3386 in)
Exhaust
34.00 mm (1.3386 in)
Base circle step of adjacent intake cams (low speed and high speed):
0.03 mm (0.001 in) or less
5. Measure the thrust clearance of camshaft with setting the dial gauge at end of camshaft. If the thrust clearance is not within the standard or there is offset wear, replace the camshaft caps and cylinder head as a set. If necessary, replace the camshaft.
Standard:
0.030 — 0.090 mm (0.0012 — 0.0035 in)