Piston Rings - Stihl MS 270 User Manual

– Make sure the flange is properly
seated in the tank housing.
– Line up the cylinder.
Fit the cylinder base screws and
torque down in a diagonal pattern
– see 3.5.
1
Install and tighten down the
decompression valve (1) firmly
(if fitted) – see 3.5.
42
1
2
Fit sleeve (1) in the manifold.
Push the washer (2) onto the
studs.
Reassemble all other parts in the
reverse sequence.
6.6

Piston Rings

– Remove the piston – see
– Remove the piston rings from the
piston.
Use a piece of old piston ring to
scrape the grooves clean.
Install the new piston rings in the
grooves so that the radii at the
ends of the rings face upward.
– Install the piston – see
MS 270, MS 280
6.5.1.
6.5.2.