Release 00 - 03/2018
Engine RS100 - RSC100
page 53
Service manual
15.4. 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 [
15.1].
2 - Remove the complete fan [ 14.3].
3 - Open the cover [ 15.2].
4 - Remove the camshaft [ 15.3].
5- Dismantle the connecting rod (21) cap (22), xed
with two screws (23) (take note of any reference
marks for retting).
6 - Push the connecting rod (22) so as to ensure the
piston (24) enters the cylinder (25) fully.
7 - Pull the engine shaft (26) out completely.
8 - To remove the piston (24) pull the connecting
rod (22) as shown in the gure.
9 -
Use the special expanding tool (27) to re-
move the two compression rings and the oil scraper
ring from the piston (24).
10 - Carefully remove all carbon deposits from the
compression rings, the inside of the cylinder and
the piston head.
15. ENGINE BLOCK - Overhauling internal parts
23
23
22
26
21
27
24
25
22
22
24
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