Lombardini LDW 502, Руководство по обслуживанию

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service manual
mod. 051135
7
A
B
D
C
A
B
Important
Before pre-assembly, check that the weight
difference between the two connecting
rod-piston-wrist pin assemblies does not
exceed 10 g to prevent weight imbalances.
1 - Lubrificate the wrist pin (A) and the seat
of the small end of the connecting rod (B).
2 - Place the lock ring (C) on the piston
complete with sealing rings (D).
Important
Insert the lock rings with the tips pointing
towards the base of the piston with a
tolerance of 15°.
3 - Insert the wrist pin (A) into the piston (D) and install
the connecting rod (B) (complete with cap).
4 - Insert the wrist pin completely and fasten with the lock
ring.
Important
– Make sure the lock rings are positioned correctly
in their seats.
– Lubricate the coupling parts and those that are
prone to oxidation.
7.3 PRE-ASSEMBLY OF CONNECTING RODS - PISTONS
7.4 INSTALLING VALVES
7.4.1 Assembling the valves
Important
– Make sure that the cylinder head is
perfectly clean and dry.
– Check that all components are intact
and, if necessary, replace them with
original spares.
1 - Lubrificate the valve stem sealing ring (A),
insert it into tool “717-1460-047”, and
mount it right into the seat of the valve
guide.
2 - Lubrificate the vale stem (B).
3 - Slip the valve into the seats.
connecting rod cap
tool
717-460-047
INSTALLATION OF ASSEMBLIES