Honda CLYMER VF500C 500F (1984-1985) [72/350] Engine

Honda CLYMER VF500C 500F (1984-1985) [72/350] Engine
ENGINE
63
ffi
camshaft
that operate
the
valves
for
those 2
cylinders. Both
the intake
and exhaust
camshafts
for
one
bank of cylinders
are driven
by one cam
chain.
There
are
2
cam
chain sprockets
on the
crankshaft.
Both
cam
chains are of the dual-row
link
plate
type.
The
engine must
be removed
and
disassembled
to remove
the chains.
NOTE
The
cams can be removed with
the
engine
in the
frame
but it
is much
easier
with
the engine removed.
This
procedure
is
shown
with
the engine
removed.
Removal
l. Remove
the engine
as described in
this chapter.
2.
Remove
the bolts
(Figure
13)
securing the
cylinder
head
covers
and
remove
both
covers.
3. Remove
the bolts securing
the cam
chain
guide
(A,
Figure
14)
and remove
the
guide
from
the
front
and rear
cylinder heads.
4.
Remove
the bolts
(B,
Figure
14)
securing
the oil
pipe
assembly.
5.
If
removed,
temporarily install
the alternator
rotor
and
the right-hand
crankcase/clutch
cover.
6. Using
the bolt on the alternator rotor,
rotate
the
engine
until
there
is
slack in
the cam
chain. Pull
up
on the middle
of the chain
and carefully remove
the
oil
pipe
(A,
Figure 15).
Remove
the oil
pipe
from
both
the
front
and
rear
cylinder heads.
7.
Place
a clean
shop
cloth
into
the cam
chain
cavity in
the cylinder head
to
keep
small
parts
from
falling
down into
the crankcase.
8.
Loosen
all
valve
adjustment locknuts
and
loosen
all
valve
adjusters. This will
relieve
stress
on the
cams
and
rocker
arms during
cam
removal.
NOTE
During
the
next step, loosen
the
bolts in
2-3
stages on all 4
bearing
caps.
This
will
gradually
release
the
pressure
on
the
cam
as the lobes
on one cvlinder
will
be
under
pressure.
NOTE
On some
models
the
camshaft
holders
have a cast
identification
mark
as
indicated
in
Figure
16.
9.
Remove
the bolts
securing the camshaft
holders
(B,
Figure
l5). Before
removing
the holders mark
them with
a
permanent
marker
pen
so they
will
be
installed
in
the
same
location.
Mark
them
with
the
cylinder
number
(Figure
17)
and either intake
or
exhaust;
for
example,"4E" would
indicate
cylinder
No.
4.
exhaust.

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