REASSEMBLING
THE ENGINE
CONT, D
,
REASSEMBLING THE
CRANKCASE:
0il the
crankshaft tapered ends, the
bearirgS, and the
bearing cages.
Heat moderately the shell
(facing
the
f'lywheel magneto) around
the
bearing
housing
untiI
smoke
appears.
Fit
a
new oil seal with
the crankcase
seal fitting
tool
,
No. 10001.0,
fig.
3.
N0TE:
Seals must be
fitted
with
the
spring and
lips
facing outwards.
Very
quickly
fit
the crankshaft assembly
(flywheel
masneto
side)
in
the crankcase half; the
bearing
will
locate
itself
correctly.
Fit
the oiled
paper gasket
to the crankcase
half
(see
N0TE on
page
17).
Repeat
the operation
for
the
other crankcase
half.
Tighten
but do not lock
the two upper
screws
after
havinq
mounted the
lug
for
securing
the
belt
cover
(variator
engines)
(fig.
4).
Clamp
(modenately)
tfre
engine in a vice over
the crankcase
lower
bosses.
Make
sure the
cylinder-crankcase
mating surfaces
are completely
free
from
distortion; if necessary, tap on the upper
part
of a
stud
(assem-
b'l ing
cyljnder and cylinder
head) with a
mallet.
Trim
the
paper gasket
with a scraper.
NOTE:
As
far
as variator engines are concerned,
w€ recommend
the
positioning
of the
belt
cover
upper
mounting lug
before locking
the
crankcase
half upper
mounting screw.
The
top of this
mounting lug
will
rest
against
the
cylinder's
lowest radjation
fins
(fig.
4).
Fig.
3
Fig. 4
R0 19
www.butkus.org/information
To Next Page
Loading...