To Remove the Camshaft and Tappets
To
remove
the
camshaft
it may be necessary
to
remove
the
engine
from
the
vehicle
or
application
and place in
a suitable
dismantling
stand where it can be
turned
upside
down.
The purpose
of
this
is to prevent the
tappets
from
falling
out
of
their
locations when the
camshaft
is removed. If however, it is
not
possible
to
turn the
engine
over
in this manner, then this
problem
may be
overcome
by attaching suitable
clips
(when
the
tappet
inspection
cover
has been removed) to each
tappet
to
hold
them
in
their
locations
when the cam-
shaft is
withdrawn
from
the
block.
1. Remove
the
engine
from the
vehicle
or
application
and
mount
in a suitable
dismantling
stand
(where
available)
correct
way up.
2.
Remove
the
cylinder
head cover,
rocker
shaft and
push rods.
3.
Remove
the
timing
case
front
cover
and
timing
gears.
4.
Remove
the
fuel
lift
pump,
tappet
inspection
cover
and fuel
pump
operating
push rod.
5.
Turn the
engine
over so that the sump is
now
uppermost:
NOTE:
At
this
stage if it is
not
possble
to
turn
the
engine
over
then
the tappets should be lifted
to
the
top
of
their
locations
and secure with
suitable
clips.
6.
Remove the
sump
and
lubricating
oil pump assem-
bly.
(Refer
to
Page
L.1
for
details
of
their
re-
moval).
7.
Remove the
timing
cover
back
plate as
previously
TIMING CASE AND
DRIVE-J.S
plates
as
illustrated in Fig. J.14.
8.
Ease the
camshaft
out
from
the
back
and
catch
the
two
thrust
plates
as they
come
out
of
their
recess in the
cylinder
block.
9.
Withdraw
the
camshaft
as shown in Fig. J.10
taking
care
to
ensure
that
the
cams
and
journals
are
not
damaged
during
this operation.
10. The tappets may
now
be removed by
lifting
them
out
of
their
locations
(Refer
to
Fig.
J.12)
or
by
removal
of
the
retaining
clips
if
the
engine
is
still
the
normal
way up.
11. Examine
camshaft
and
tappets
for
signs
of
exces-
sive wear,
surface
cracks,
pitting
etc.
detailed
this
will
show the
camshaft
and
thrust
J10
2
1.
Drive Hub
2.
Lubricating
Oil Pump Drive Gear
3.
Groove
for
reduced oil pressure feed to
Rocker Shaft
4.
Bearing
Journals
4.
J11
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