Maintenance
2124−3/A1
Winterthur Gas & Diesel Ltd.
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4. Lubricating grooves
CAUTION
When you remove sharp edges from the lubricating grooves,
make sure that the shape stays the same as the original.
1) If the depth of the lubricating grooves has decreased to less than 1.5 mm, do as
follows:
a) Use emery cloth or an oil stone to get the the lubricating grooves 5 back to their
original depth (see Fig. 2).
5
I-I
I
I
I
II
II
I
I
I
2 mm
R1
R2−3
WCH02350
5
5
5
Fig. 2
5. Scavenge ports
CAUTION
When you polish the scavenge ports, make sure that you do not
cause damage to the running surface of the cylinder liner.
Note: The scavenge ports shown in Fig.3 view III relate to new cylinder liners.
1) Use emery cloth to polish the surfaces of the scavenge ports. Make sure that you
keep the shape of the scavenge ports the same as those shown in Fig. 3, view III.
II
II - II
WCH02350
ROUNDED
EDGES
II
III
WCH02350
III
Fig. 3
2015
Removing the Wear Ridge, Re-dressing Lubricating Grooves and Scavenge Ports