18 ENGINE
18.4.22 Checking camshaft
- Check the camshaft for damage and wear.
If there is damage or wear:
- Change the camshaft.
- If the camshaft surface is damaged, check the oil
supply of the camshaft and the rocker arm.
- Measure the cams of the camshaft.
Camshaft - cam height
Exhaust
133.10 ... 33.30 mm (1.3031
... 1.311 in)
Camshaft - cam height (FE 450 EU/AU, FE 450 US)
Intake
134 ... 34.20 mm (1 .34 ...
1.3465 in)
Camshaft - cam height (FE 501 EU,
FE
501 AU,
FE
501 US,
FE 501 SUS)
Intake
134.40 ... 34.60 mm (1.3543
... 1.3622 in)
If the measured value does not meet specifications:
- Change the camshaft.
18.4.23 Checking the timing assembly
0
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8
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- Clean all parts well.
- Check the timing chain gear/timing chain sprocket
O
for damage and wear.
If there is damage or wear:
- Change the camshaft/timing chain sprocket.
- Check the timing chain tensioning rail
8
for damage and wear.
If there is damage or wear:
- Replace the timing chain tensioning rail.
- Check the timing chain guide rail
8
for damage and wear.
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