BOMBARDIER 1980 Shop Manual page 98

ROTARY VALVE & COOLANT PUMP
CLEANING
Discard all all seals and "0" nngs.
Remove old crankcase sealant from rotary valve gear and
adjacent bearing.
Clean all metal components in a non-ferrous metal
cleaner.
DISASSEMBLY & ASSEMBLY
8There are two Interchangeable types of rotary valve
shaft. The first one IS made of a shaft with a pinion
attached to it by means of a key and Allen screw. On
the second type, the pinion and the shaft are machined
together as a single part.
First type
tell
~
To remove rotary valve shaft assembly from crankcase,
first remove pump impeller
@
and circlip
@.
Position special puller over shaft bore (with pinion re-
moved) and screw puller bolt into rotary valve shaft. While
holding puller bolt. turn puller nut clockwise until shaft
comes out.
At assembly, apply "Loctlte 515" on bearing and rotary
valve gear mating surfaces.
Beanng~'· ~/
Apply
"loctlte 515"
SECTION 03
SUB-SECTION 02, (ENGINES)
To Install shaft assembly, use a fiber hammer. Use a no,
420 876 505
pusher to Insert oil seal with lithium grease
on seal lip,
Second type
(fIr,"
_I)
ll>
To remove rotary valve shaft assembly from crankcase,
first remove pump impeller
@
and circlip
@ ,
USing an
appropriate pusher (PIN
420 876 610)
and a fiber
hammer, drive out shaft assembly.
tool
At assembly, apply "Loctne
515"
on beanng and rotary
valve shaft mating surfaces.
I::!::d;::::f--/
Beanng~·
?
Apply
"Loctlte 515"
To Install shaft assembly and oil seal, use no,
420876 600
pusher.
(444 ENGINE TYPE), PAGE 9