Italjet Dragster 2022, Maintenance Manual

Page: 146 / 165

Inspecting the cylinder head
•
Using a trued bar, check that the head surface is not worn or distorted.
•
Check that the camshaft bushings are not worn.
•
Check that the head cover surface, the intake manifold and the exhaust manifold are not
worn.
Inspecting the timing system components
•
Check that the guide slider and the ten-
sioner pad are not excessively worn.
•
Check that the chain assembly, the
camshaft driving pulleys and the
sprocket wheel are not worn.
•
Replace the parts if signs of wear are
found.
CHAIN TENSIONER
•
Remove the central screw with the
washer and the tensioner spring.
Check that the one-way mechanism is
not worn.
•
Check the condition of the tensioner
spring.
•
If signs of wear are found, replace the
whole assembly.
Inspecting the valve sealings
- Fit the valves into the cylinder head.
- Alternatively test the intake and exhaust valves.
- This test should be carried out by filling the mani-
fold with petrol and checking that the head does
not excessively ooze through the valves.
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