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17
ENGINE
17.4.21
Checking camshaft
17.4.22
Checking the timing assembly
•--�
-
Clean all parts well.
-
Check the timing chain gear/timing chain sprocket
If there is damage or wear:
-
Change the camshaft/timing chain sprocket.
-
Check the timing chain tensioning rail @} for damage and wear.
If there is damage or wear:
-
Replace the timing chain tensioning rail.
-
Check the timing chain guide rail
If there is damage or wear:
-
Replace the timing chain guide rail.
-
Check the timing chain securing guide
If there is damage or wear:
-
Replace the timing chain securing guide.
0
-
Check timing chain
for damage and wear.
If there is damage or wear:
-
Replace the timing chain.
-
Check the timing chain links for smooth operation. Let the timing chain hang down freely.
»
The chain links no longer align in a straight line:
-
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
Intake
If the measured value does not meet specifications:
-
Change the camshaft.
f- - 8
O
for damage and wear.
fD
for damage and wear.
C,
for damage and wear.
33.10 ... 33.30 mm (1.3031 ... 1.311 in)
33.90 ... 34.10 mm (1.3346 ...
1.3425 in)
304677-10
156
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