S5 Workshop Manual Engine
■ If the thrust surface is damaged, replace connecting rod. If connecting rod thrush
surface has abrasion in layer, or the surface of small end, inner bore are very rough,
replace connecting rod.
1) Install cushion spring.
2) Install upper blade To install blade, first place one end of blade between piston ring
groove and cushion spring, and make them tightly clamp, and then use finger to press
it down to insert it into the groove, as shown in figure. When installing blade, do not
Use piston ring expander.
3) Install lower blade according to the
same sequence shown in step 2.
4) Apply oil around piston and on piston
ring groove.
From the 90
degree opening of
the second ring
Opening position
of lower blade
Opening position of
cushion spring
Opening
position of
upper
blade
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