ENGINE REPAIR 6A-49
VALVES PLAY
Checking the valves play
Removal or disconnected
1) Disconnect battery
2) Remove upper soundproof cover (1).
(mechanical(mechanical
(mechanical(mechanical
(mechanical
injection engine)injection engine)
injection engine)injection engine)
injection engine)
3) Remove side soundproof cover, upper (1
1
) and fixing yoke
of electroinjector wire
(common rail engine)(common rail engine)
(common rail engine)(common rail engine)
(common rail engine)
1
4) Remove position sensor (9) camshaft and it support
(common rail engine)(common rail engine)
(common rail engine)(common rail engine)
(common rail engine)
5) Remove plungers cover (2).
Check
NOTE:
Checking and adjustment must be carried out
simultaneously in the two valves of each cylinder,
proceeding from cylinder to cylinder.
1) Use the appropriate tool on the crankshaft pulley screw to
be able to turn it.
NOTE:
If the cylinder head us removed apply tool (A) ref.
790970 on flange of camshaft driving gear to be able
to turn it.
2) Turn camshaft using the crankshaft (engine on the vehicle)
or directly using on the camshaft tool (A) (cylinder head
dismantled), till achieving the closure of valves to be
checked.
3) Measure with caliper depths part (B) the play between
plungers and inlet and outlet connecting rods checking
agreement with specified value.
Inlet and outlet valves play: 0,5 ± 0,05 mm
NOTE:
• The value given for the valves play is with the engine
hot or cold.
• Write down values read in each valve to carry out
later the adequate adjustments if necessary.
2
B
A
MECHANICAL INJECTION ENGINE
COMMON RAIL ENGINE
MECHANICAL INJECTION ENGINE
COMMON RAIL ENGINE
1
1
9
2
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