6.9)
Ignition
cover
Twoversions
are inproduction,
eitherwith
orwithoutdriveformechanicalrev-counter. Visual
inspection of sealing face.
Checkand
clearoil ductforfree
passage
by
compressed air.
Measure
bore32
mm
(1,260
in.)
of crankshaft
bearing.
Dimension
of
bcaring bush
in
cover
crankshaft
joumal
clearance
new mm
32,02
+
32,03
31,99
+
32,ffi
O,A2
+
0,04
(in.)
( +
1,261)
( +-
1,259)
(
+
0,001)
wear limit mm
(in.)
32,10
(12&)
31,95
(1258)
0,12
(0,005)
The exchange
of the bearing bush
is not
planned
because
the
final machining of the
bush and
oil bore O is carried out with bush
pressed
in
position.
At renewal
of bush @ because of wear,
exchange cover ass'y
(cover
with bush) or send the unit
for repair
to
ROTAX.
Check oil seal
@ 32x52x7, exchange as
required
(SimmerA
32-57-7
LDR) using
punch
877 270.
Visual check for
emergence of
water
or
oil at
leakage
bore @. Check
rotary
seal.
Renew rotary
seal 6
and
oil seal @
at
emergence
of
fluid. Inspect
seat
ring
O
for
electric starter.
6.10)
Dis-assembly
of water
pump
It is
an advantage
to slacken
impeller
already
at
dis-ass'y
of engine whilst crankshaft is locked.
Otherwise lock
pump
drive
gear
@ with suit-
able tool. Always
use spannerinsenSTT
295
at
removal
and
fi
tting of
impeller
to
prcventdam-
age
to blades
of
impeller. Place ignition
cover
on suitable
plane
face and
push
out
water
pump
shaft using appropriate
punch
9.
Withdraw
drive
gear.
37"1::':':'1o92