Section 04
ENGINE
Subsection 02
(599, 699 AND 809 ENGINE TYPES)
04-02-5
COMPONENT REMOVAL
Most engine components can be removed with
engine on vehicle such as:
– cylinder head
– piston(s)
– cylinder(s)
– rewind starter
– oil pump
– water pump
– magneto flywheel
– RAVE valve(s)
CLEANING
Discard all gaskets and O-rings.
Clean all metal components in a non-ferrous met-
al cleaner.
Scrape off carbon formation from cylinder exhaust
port cylinder head and piston dome using a wood-
en spatula.
NOTE:
The letters ’’AUS’’ (over an arrow on the
piston dome) must be visible after cleaning.
Clean the piston ring groove with a groove cleaner
tool or with a piece of broken ring.
DISASSEMBLY
18, Piston
599 and 699 Engines
Place a clean cloth over crankcase then with a
pointed tool inserted in piston notch, remove cir-
clip
no. 20
from piston
no. 18
.
Use piston pin puller (P/N 529 0210 00).
Unscrew puller in order to remove piston pin
no. 19
and cage bearing
no. 21
from piston.
Remove piston from connecting rod.
809 Engine
On this engine, piston pin needle bearing
no. 22
is mounted without a cage.
Use piston pin puller (P/N 529 0210 00) along with
expansion sleeve and locating sleeve.
Place a clean cloth or rubber pad (P/N 529 0234
00) over crankcase to prevent circlips
no. 20
from
falling into crankcase. Then with a pointed tool in-
serted in piston notch, remove circlips from pis-
ton
no. 18
.
Insert piston pin puller (P/N 529 0210 00) then in-
stall expansion sleeve over puller rod.
1. Expansion sleeve
Pull out piston pin
no. 19
by unscrewing puller un-
til first thread of puller rod aligns with the mark.
1. Mark on puller
Screw in puller in order to remove it from piston.
Remove piston from connecting rod.
Install locating sleeve. Then push needle bearings
along with thrust washers using a 21 mm (.826 in)
diameter pusher.
A21C06A
1
529 0210 00
A21C05A
1
Содержание Formula MACH 1
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