BOMBARDIER 1980 Shop Manual page 68

SECTION 03
SUB-SECTION 02, (ENGINES)
To correctly install the rotary valve disc proceed as
follows:
- Turning crankshaft counter-clockwise. (drive pulley
side) bring magneto side piston to Top Dead Center
uSing a T.D.C. gauge.
- Position the rotary valve disc on gear to have edges
as close as possible to the marks.
O
NOTE: The rotary valve disc
IS
asymmetrical. there-
fore. at assembly try positioning each side of disc
on gear to determine best installation position.
Magneto side piston
~~stbeatTD,c
~ -~
Timing marks
(2)
0At assembly. apply crankcase sealant "Loctite
515" on bearing and rotary valve shaft mating surfaces.
Bearing
(354-454 ENGINE TYPES). PAGE 10
Apply
loctlte 515
(2) through @Rotary valve shaft assembly
To remove rotary valve shaft assembly from crankcase,
first remove coolant pump impeller@andclrclip0. Using
the suitable pusher
(P
I N
420 876 610)
and a fiber
hammer. push shaft assembly.
/ ,
"'--
Tool no 420876610
If it is necessary to disassemble components of rotary
valve shaft assembly. compress spring retaining CUP@1n
order to remove circ!ip
@.
To install shaft assembly and oil seal. use pusher
no.
420876 600
Tool no 420876600