Toyota B User Manual

ROUGH
IDLE
WITH
WARM
ENGINE
(Possible
Gause)
(Check
Procedure
and
Correction
Method)
1.
IMPROPER
ADJUSTMENT
OF
ACCELERATOR
CABLE
With
the
accelerator
pedal
released,
check
that
the
adjusting
lever
is
in
contact
with
the
idle
adjusting
screw.
Also,
check
if
the
accelerator
cable
ii
catciing
on
something.
lf
necessary,
adjust
so lever
is
in
contact
with
the
screw,
or
make
other
required
repairs.
2.
IDLE
SPEED
TOO
LOW
Check
the
idle
speed
as
specified
below.
(See
page
EM-25)
ldle
speed:
M/T
600
-
7OO
rpm
A/T
77O
_
g2O
rpm
lf
not,
adjust
with
the idle
adjusting
screw.
HINT:
lf
less
then
specified,
idling
would
normally
be rough.
Check
for
leaks
in
the
injection
pump
connections,
pump
distributive
head
bolt,
nozzle
holder
and
delivery
valve.
Tighten
any
loose
connections
to
specified
torque
or
replace parts
as
necessary.
4.
IMPROPER
TNJECTION
TIMING
REfCr
tO
itEM
9 Of ENGINE
CRANKS
NORMALLY
BUT
WILL
NOT
START,
above.
5.
IMPROPER
OPERATION
OF
INJECTION
NOZZLE
OR
DELIVERY
VALVE
With
the
engine
idling,
loosen
the
injection pipe
to
each
cylinder
in
order,
and
check
if
the
idle
speed
changes.
lf no
change,
a faulty
cylinder
is
indicated.
Check
according
to
the following
procedure.
o
Faulty
Nozzle
Check
the
nozzle
with
nozzle
tester.
(See
page
FU-9
or 1S)
Opening pressure:
Band
38
1OS
-
12Skg/cmz
(1,493
_
1,778 psil
(10,296
_
12,258kPa\
11Band
148
180-
21Okg/cmz
(2,560
_
2,987 psi)
(17,652
_
20.594
kpa)
lf not
within
specification,
the
nozzle
is faulty
and
injection
pressure
should
be readjusted.
o
Faulty
Delivery
Valve
lf
injection
pressure
is
within
specification,
the
delivery
valve
is
defective
and
should
be replaced.

Toyota B Specifications

General

Brand	Toyota
Model	B
Category	Engine
Language	English