Piston Rings - Stihl MS 271 Manual

6.8

Piston Rings

– Remove the piston, b 6.7
– Remove the piston rings from the
piston.
: Use a piece of old piston ring to
scrape the grooves (arrows)
clean.
: Position the new piston rings so
that the radii face
upward (arrows).
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– Carefully fit the piston rings over
the piston
– they might otherwise break.
: Install the piston rings so that the
radii at the ring gap meet at the
fixing pins in the piston
grooves (arrows).
: Check correct installed position
of the piston rings (arrows).
– Install the piston, b 6.7
– Reassemble all other parts in the
reverse sequence.
MS 271 C, MS 291 C