ly
~h
ld
of
"
,e,
je
h.e
ld
d-
ts
It-
ift
rk
Df
g;
n-
ps
H-
rn
h.e
:rs
value. (Gaskets are
not
required because
of
the
tapered seal feature.)
(6)
Mount
the
nozzle holders.
The
mounting
bolts
must
be tightened equally, and
to
the
prescribed
torque
value. Use new gaskets
on
the
holders.
(7)
Connect
lead wires
to
the
glow plugs in
place.
(8)
Do
not
apply any sealant
to
the
cylinder
head gasket:
the
replacement gasket comes
with its surfaces coated with sealant.
(9)
When securing
the
cylinder head
to
the
block, be sure
to
tighten its bolts sequen-
tially
to
make sure
that
the
pressure will
be equalized. This is accomplished
by
running all bolts in till
they
become finger-
tight, and
then
tightening
them
with a
torque
wrench gradually and in
two
or
three steps, each time moving
the
wrench
from one
bolt
to
another
in
the
sequential
order
indicated by
the
numbers
and
tighten-
ing
to
the
prescribed
torque
limit in the
final step.
5
8
3
Cylinder head tightening order
(10) Several kinds
of
gaskets and packings are
used on
the
cylinder head. Be sure
to
use
new gaskets and packings in reassembly.
Also, be sure to use
the
prescribed sealant
at
the places specifically designated.
(11)
To
adjust the valve clearance, proceed
as
follows:
(a) Valve clearance
adjustment
should be
carried
out
with
the
piston in
top
dead
ENGINE
center
on compression
stroke
when
the
engine is cold.
Be
sure
to
tighten the cylinder head
bolts
to
the specified
torque
before
adjusting
the
valve clearance.
Adjusting valve clearance
(b)
To
bring
the
No.1
cylinder piston
to
top
dead
center
on compression stroke, align
the timing (TDC)
mark
on the crank
pulley with
that
on
the
gear case
by
turning
the
cranksahft in normal direc-
tion,
as
shown below. Now, the
intake
and
exhaust
valves
of
the
No.1
cylinder
are ready to be checked. Check
the
clearance and,
if
it
is
incorrect, adjust
it
by turning
the
adjusting screw.
Be
sure to align the timing marks
perfectly
or
the
valves are moved away
from
the
correction position, making
it
impossible to obtain
the
correct valve
clearance.
(
"-
No.2
TOC\
" -
---"'-...
No.3
TOC
Timing marks
2-23
To Next Page
Loading...
Need help?
General
