Datsun BLUEBlRD P 410 Series User Manual

When
hftmg
the head a dIrect
pull
should be
gIven
so that the head IS
pulled evenly
up
the
studs Remove the
cyhnder
head
gasket
Decarbonising
Remove the
cylmder
head With the valves stlll m
pOSltlon
remove
the carbon
from
the
combustlon chambers and the valve faces
Leavmg
the
valves m
POSI
tion for tlus
operatlon
ensures that
damage
cannot
be caused
to the seats
by
the
wire brush Wh1Ch should be used for
the
removal of carbon
If the exhsust
valve heads are coated WIth a
very
hard
deposit
thIS
may
be
re
moved
by
usmg
a ch1sel
shaped p1ece
of hardwood
Remove the valves and
usmg
the
wire brush clean out the
carbon
from the
mlet and exhaust
ports
Blowout
all
traces
of carbon dust with
compressed
aIr or
type pump
and
fmally
clean
the
ports
with
gasohne
and
dry
them out The
carbon
should now be removed
from the
piSton
crowns Rotate
the
engIne
untll the
PIston
to be worked on 1S
at
T D C
Protect the other
cyhnder
bore
from the
entry
of carbon
partlcles
by
push
mg
a non
fluffy
rag
mto them
Usmg
a clusel
shaped pIece
of hardwood
Carefully
remove
the
carbon
from
the
pIston
crowns A
rmg
of
carbon should be left round the
penphery
of
each
pIston
and the
depoSIt
round the
top
of the
cyhnder
bore should not
be touched
An mdlCatlOn
as
to
when decarbomsanon IS
reqUlre
IS
generally gIven by
an all
round loss of
power
Cars used
mamly
on short runs
w1l1
reqUIre
thiS attentlon
more often
than those used for
long
runs
Removal and
Replacement
of
a Valve
Whllst the
cyhnder
head
IS re
moved
the
valves can be taken
out
To
do
thiS
compress
the
valve
spnng
with
the
special
valve
spnng
com
pressor
as shown m
F1g
1
Removal
Remove the two
cap
retammg
collets
Release
the
valve
spnng
the
valve
sprmg cap
valve
011 seal
Inlet
valve
only
and Its retamer
Withdraw the valve from
the
gUlde
Keep
the valves m thell relanve
poSltlons
when removed
from the
engme
to
ensure
replacement
m
theIr
ongmal
valve
guides
F
g
1 Valve
Spnng Compressor
21

Datsun BLUEBlRD P 410 Series Specifications

General

Brand	Datsun
Model	BLUEBlRD P 410 Series
Category	Automobile
Language	English