Toyota 14b User Manual

ENGINE MECHANICAL
-
Diesel
Engine Diagnosis
EM-11
EXCESSIVE
FUEL
CONSUM
PTION
HINT:
Check
whether
the
clutch slips,
brakes
grab,
whether
the tires
are
the
wrong size
or
the air
filter
is
clogged.
(Possible
Cause)
(Check
Procedure
and
Correction
Method)
1. FUEL LEAKAGE
Refer to item 3 of
ROUGH IDLE
WITH WARM
ENGINE.
After sufficiently
warming up engine,
check that
idle
speed
is
as specified
below.
(See page
EM-25)
ldle
speed:
M/T 600
-
7OO rpm
A/T 77O
-
820
rpm
lf not, adjust
with
the
idle adjusting screw.
2. IDLE SPEED
TOO HIGH
Start engine,
depress the accelerator
pedal
to the
floor and check that
maximum speed
is as specified
below.
(See page
EM-25)
Maximum speed:
B, 38
4,050
-
4,2OO rpm
118. 148 4,O5O
-
4,250
rpm
lf not, adjust
with
maximum
speed
adjusting
screw.
3. MAXIMUM SPEED
TOO
HIGH
REfEr tO
itEM 9
Of
ENGINE
CRANKS
NORMALLY
BUT
WILL
NOT START.
IMPROPER
INJECTION
TIMING
Refer to
item
11 of
ENGINE
CRANKS
NORMALLY
BUT
WILL
NOT START.
5. FAULry
INJECTION
NOZZLE
:
IT
ENGINE
NOISE
WHEN
WARM
(Cranking
Noise
with
Excessive
Vibration)
(Possible
Cause)
(Gheck
Procedure
and Gorrection
Method)
l
l
Check
coolant
temperature
with
water temp.
gauge.
lf not sufficiently
warm, thermostat
is faulty
and
should
be
replaced.
1. COOLANT
TEMPERATURE
TOO LOW
Refer to
item 9 of
ENGINE CRANKS
NORMALLY
BUT
WILL
NOT START.
2.
IMPROPER
INJECTION
TIMING
Refer to
item
11 of
ENGINE
CRANKS
NORMALLY
BUT WILL
NOT START.
3.
FAULW
INJECTION
NOZZLE

Toyota 14b Specifications

General

Brand	Toyota
Model	14b
Category	Engine
Language	English