ENGINE
(c) Next
tum
the
crankshaft 240 degrees in
normal direction
to
bring
the
No. 3
cylinder piston
to
top
dead center
on
compression stroke. Having made sure
that
the
timing marks are perfectly
aligned, check and adjust the valve clear-
ance on this cylinder.
(d)
Further
tum
the
cra'1kshaft 240 degrees,
and similarly adjust the valve clearance
of
No.2
cylinder valves.
Cylinder
block
The procedure
of
building the cylinder block
assembly
is
as
follows:
[NOTE]
a)
Clean all parts thoroughly. Make sure
oil holes are clean and clear, sliding
surfaces free
of
any foreign matters,
and rotary parts capable
of
smooth
rotary motion.
b) Before fitting a part, be sure
to
oil it
lightly.
c) Do
not
re-use the gaskets, packings,
"0"
rings and the like
that
have been
removed in disassembly. Use new
sealing parts in reassembly.
d)
Use
of
sealant
is
specified for some
joints and fits.
Be
sure
to
use the
sealant where its use
is
prescribed.
e) Adhere to
the
standard practice
of
tightening bolts
or
nuts sequentially
on a part secured by a plurality
of
bolts
or
nuts (in order
to
avoid distort-
ing the part) and
to
use a torque
wrench on bolts for which a torque
limit
is
specified. Even those bolts
or nuts for which
no
torque
limit
is
specified must be tightened
to
a
certain limit established for the type
and size
of
the bolts or nuts. Under-
tightening
or
stripped screw threads
are usually a result
of
ignoring the fact
that
a so-called
"torque
limit"
is
synonymous
to
required tightening
torque.
2·24
f)
Important
clearances, end plays and
thrust plays are specified
to
be within
a certain range
or
to
take a certain
value. In
the
process
of
reassembly, be
sure
to
check and double-check such
a clearance
or
play.
The sequence
of
steps for reassembling
the
engine
is
exactly reverse
of
the disassembly.
However, a large
number
of
reassembling steps
involve special techniques, treatments, checks
for meeting specific requirements, and adjust-
ments. Those steps will be described.
(I)
When installing the camshaft front journal
bushing
into
the cylinder block, use the
installer and press in the bushing so
that
the
oil holes in the bushing and cylinder block
are aligned.
It
is
advisable
to
put
a mark
indicating oil hole position
on
the
front
face
of
cylinder block with a soft pen
before installing the bushing for
the
convenience
of
aligning the holes and also
of
checking after the installation
of
the
bushing
is
completed
Oil passage
in
block
,..---------
Oil hole in the bushing
(Make sure oil hole in the
bushing is aligned
with
oil
passage in block.
Be
careful
riot
to
insert bushing the
other
way
arround.)
How
to
align bushing oil
hole
a) Before installing the bushing, scribe
oil hole center
mark
on
front face
of
block with a marking
pen
or the
like.
b) Set up the bushing on the tool
and
press
it
into
bushing hole
as
guided
by the
mark
scribed in
step
a).
Installing camshaft front journal bushing
p
z
(:
(5)
z
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