Stihl 064

STIHL 064, 066 35
If the original crankcase is used - Pull the plastic plug out of the oil - Heat area of bearing seat on
again, remove the gasket residue pump. clutch side of crankcase to
and clean the mating surfaces - approx. 120 °C (250 °F).
they must be cleaned very thor- - Position the oil pump against the - Place ball bearing with wider
oughly to ensure a perfect seal. crankcase. Fit and tighten down outer race in position so that its
the mounting screws. flat side points upward and then
Note: If you install a new crank- press it in until it locates against
case, stamp the machine number Note: Before heating the crank- the oil pump.
on the crankcase with 2.5 mm case, remove all rubber and plas-
(0.1") figure stamps. tic components, such as oil pickup Note: The ball bearing can be
and delivery hoses, grommets, an- fitted by hand if the crankcase is
- Check that dowel pin is in posi- nular buffers and levers - see 7.1 heated as specified. However, this
tion or fit it in the new crankcase. and 10.2. Check condition of all operation must be carried out very
parts and replace as necessary. quickly because the bearing ab-
sorbs heat immediately and be-
gins to expand.
Top Top:
Crankcase in correct assembly Oil ump fitted in position
sequence
Bottom:
Bottom: Bottom: Ball bearing in position
Dowel pin Plastic plug (flat side facing upward)
4.5.2 Installing the
Crankshaft