Release 00 - 02/2008
Engine WBE 0701-WBE 0704
pag. 47
Service manual
10 - When refitting the camshaft, maximum care
must be taken to match up the two references (22)
and (2) punched on the gears, so as to ensure
correct distribution phasing.
11 -
During assembly, refer to the operations
in section
place the washer (7) between the sump and the
housing.
14.4. Dismantling and checking the piston, piston
rings, connecting rod and engine shaft
NOTA - These paragraphs describe all the
operations for checking and overhauling the
thermal components of the engine; it is left
to the operator to assess the advisability of
performing all the operations described or
only part of them, depending on the type of
engine problems encountered.
1 - Remove the engine from the machine
.
2 - Remove the magneto flywheel
.
4 - Remove the camshaft
5- Dismantle the connecting rod (24) cap (25
), fixed
with two screws (26) (take note of any reference
marks for refitting).
6 - Push the connecting rod (25) so as to cause the
piston (27) to come out of the cylinder (28).
7 -
Use the special expanding tool (29) to re-
move the two compression rings and the oil scraper
ring from the piston (27).
8 - Carefully remove all carbon deposits from the
compression rings, the inside of the cylinder and
the piston head.
14. ENGINE BLOCK - Overhauling internal parts
2
22
26
25
24
29
27
27
28
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