Stihl 064 Service Manual page 30

STIHL 064, 066
Top:
Correct position of manifold
Bottom:
Correct position of hose clamp
a = 7 - 7.5 mm (approx. 9/32")
b = approx. 45°
- Push the manifold onto the intake
port so that its tab lines up with
the rib on the cylinder (see illus-
tration).
- Slide the hose clamp onto the
manifold. The screw head must
point to the right.
- Tighten the hose clamp so that
its ends point to the right at an
angle of approx. 45° (looking at
intake port). Continue tightening
the screw until the gap between
the two ends of the hose clamp
is 7 - 7.5 mm (approx. 9/32").
Top:
Fixing pins in piston and correct
position of piston rings
Bottom:
Clamping strap 0000 893 2600
Note: If a new cylinder with a long
exhaust port is installed, also re-
place the old muffler - see 4.1.
- Position the piston rings so that
the radii at the ring gap meet at
the fixing pin in the piston groove
when the rings are compressed.
Top:
Compressing piston rings with
the clamping strap
Bottom:
Fitting cylinder over the piston
- Use the clamping strap to com-
press the piston rings around the
piston.
- Lubricate the inside of the cylin-
der with oil and line it up so that
it is roughly positioned as it will
be in the installed conditon.
- Now slide the cylinder over the
piston - the clamping strap is
pushed downward as the piston
rings slip into the cylinder.
- Remove clamping strap and
wooden assembly block.
30