Stihl 034 Series User Manual page 22

Slip the piston over the
connecting rod so that arrow on
piston crown points to exhaust
port.
– Push the assembly drift
1110 893 4700, small diameter
first from the clutch side, through
the piston and small end (needle
cage) and line up the piston.
Fit piston pin on the end of the
assembly drift and push it into the
piston.
– Use installing tool 5910 890 2210
to fit the snap ring - see "Standard
Repairs, Troubleshooting"
handbook.
– Fit new cylinder gasket on the
crankcase.
– Lubricate piston and piston rings
with oil.
22
Slide the wooden assembly
block between the piston and
crankcase.
Rest the piston on the wooden
assembly block.
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.
Push the manifold on to the
intake port so that its tab lines up
with the rib on the cylinder.
a
Slide the hose clamp on to the
manifold. The screw head must
point to the right.
The screw on the hose clamp
must be below the manifold and
at a right angle to the cylinder
axis.
Tighten the screw until the gap
"a" between the two ends of the
hose clamp is 3.5 to 4.5 mm.
Note:
If a new cylinder is installed in an
older machine, it is necessary to
shorten the seventh cylinder fin.
Use the edge of the eighth fin as a
guide for the modification (see
arrow in illustration).
034, 036, 036 QS
8
7
10mm