1988 FIAT TEMPRA fuel pump

Running The Vehicle
NEVER start the engine unless the gearbox is in neutral (or
'Park' in the case of automatic transmission) and the hand
brake is fully applied.
NEVER run catalytic converter equipped vehicles without the
exhaust system heat shields in place.
TAKE CARE when parking vehicles fitted with catalytic
converters. The 'cat' reaches extremely high temperatures and
any combustible materials under the car, such as long dry
grass, could be ignited.
Personal Safety
NEVER siphon fuel, antifreeze, brake fluid or other such toxic
liquids by mouth, or allow contact with your skin. Use a
suitable hand pump and wear gloves.
BEFORE undertaking dirty jobs, use a barrier cream on your
hands as a protection against infection. Preferably, wear
suitable gloves, available from DIY outlets.
WEAR IMPERVIOUS GLOVES for sure when there is a risk of
used engine oil coming into contact with your skin. It can
cause cancer.
WIPE UP any spilt oil, grease or water off the floor
immediately.
MAKE SURE that spanners and all other tools are the right size
for the job and are not likely to slip. Never try to 'double-up'
spanners to gain more leverage.
SEEK HELP if you need to lift something heavy which may be
beyond your capability. Don't forget that when lifting a heavy
weight, you should keep your back straight and bend your
knees to avoid injuring your back.
NEVER take risky short-cuts or rush to finish a job. Plan ahead
and allow plenty of time.
BE METICULOUS and keep the work area tidy
-
you'll avoid
frustration, work better and lose less.
KEEP children and animals right-away from the work area and
from unattended vehicles.
ALWAYS tell someone what you're doing and have them
regularly check that all is well, especially when working alone
on, or under, the vehicle.
Fire!
Petrol (gasoline) is a dangerous and highly flammable liquid
requiring special precautions. When working on the fuel
system, disconnect the vehicle battery earth (ground) terminal
whenever possible and always work outside, or in a very well
ventilated area. Any form of spark, such as that caused by an
electrical fault, by two metal surfaces striking against each
other, by a central heating boiler in the garage 'firing up', or
even by static electricity built up in your clothing can, in a
confined space, ignite petrol vapour causing an explosion.
Take great care not to spill petrol on to the engine or exhaust
system, never allow any naked flame anywhere near the work
area and, above all, don't smoke.
Invest in a workshop-sized fire extinguisher. Choose the
carbon dioxide type or preferably, dry powder but NEVER a
water type extinguisher for workshop use.
DON'T disconnect any fuel pipes on a fuel injected engine
without following the advice in this manual. The fuel in the
line is under very high pressure
-
sufficient to cause serious
injury. Remember that many injection systems have residual
pressure in the pipes for days after switching off. If necessary
seek specialist advice.
Fumes
Petrol (gasoline) vapour and that given off by many solvents,
thinners, and adhesives are highly toxic and under certain
conditions can lead to unconsciousness or even death, if
inhaled. The risks are increased if such fluids are used in a
confined space so always ensure adequate ventilation. Always
read the maker's instructions and follow them with care.
Never drain petrol (gasoline) or use solvents, thinners
adhesives or other toxic substances in an inspection pit. It is
also dangerous to park a vehicle for any length of time over
an inspection pit. The fumes from even a slight fuel leak can
cause an explosion when the engine is started.
v ,,, Oil;::;s

PART F: TORQUE WRENCH SETTINGS
Key for engine types and sizes: A
-
1372cc; B
-
1581cc;
C
-
1697cc Diesel; D
-
1929cc Diesel; E
-
1929cc Turbo Diesel.
Engine
Screw retaining caps to crankcase (M10 x 1.25)
Screw retaining intermediate and central caps to crankcase (M12 x 1.25)...
Self-locking screw retaining front and rear caps to crankcase (M12 x 1.25)
Bolt, cylinder head to engine block (M10 x 1.25)
IMPORTANT NOTE: All torque settings shown in
Newton-meters (Nm). Bolt, nut or screw sizes in
brackets in left-hand column.
Bolt, cylinder head to engine block (M12 x 1.25)
Bolts, top to bottom cylinder head (M8)
Nut for connecting rod cap retaining bolt (M9 x 1)
Screw, connecting rod cap (M10 x 1)
Screw retaining engine vent to crankcase
(M8)
(M8)
Screw retaining front cover to crankcase
(MlOx 1.25)
(M8)
Bolt retaining rear cover (flywheel side) to crankcase (M6)
Nut retaining inlet and exhaust ducts to cylinder head
(M8)
(M8)
Screw, flywheel to crankshaft
(M10x 1.25)
(M12
x
1.25)
Lower belt cover retaining screw (M8)
Screw, damping flywheel to drive gear (M8)
Nut retaining auxiliary drive pulley to crankshaft (M20 x 1.25)
Screw retaining drive shaft to crankshaft (*) (M14 x 1.5 left)
Screw, timing gears
(M10x 1.25)
(M12x 1.25)
Belt tensioner retaining bolt
(M8)
(M10x 1.25)
Fixed belt tensioner retaining screw (M10 x 1.25)
Screw retaining auxiliary component driven gear (oil pump) (M10 x 1.25)
Nut for camshaft cap retaining stud (M8)
Nut retaining camshaft and air vacuum pump end mounts (M8)
Combustion prechamber retaining ring (M32 x 1.5)
Nut, injection pump stud (M8)
Screw, injection pump (M8)
Nut fastening flexible block to coolant pump case (M12 x 1.25)
Nut, injection pump gear (M12 x 1.75)
Screw retaining reaction bracket to oil filter support and injection pump (M8).
Top retaining screw or nut, oil filter support and injection pump (M12 x 1.25)
Lower retaining screw, oil filter support and injection pump (M10 x 1.25)
Complete injector (M24 x 2)
Glow plugs (M12 x 1.25)
Nuts retaining fuel delivery line to injection pump and injector (M12 x 1.25)...
Bolt, coolant pump to engine block (M8 x 1)
Bolt retaining cover and bracket to coolant pump case (M8)
Oil pressure switch (M14 x 1.5)
Coolant temperature sender unit
(M16 x 1.5 tapered)
(M18x 1.5 tapered)
Coolant temperature thermal switch (M16 x 1.5 tapered)
(*) The bolt need not be greased.
A B C D E Torque (Nm)
• • 80
• • • 113
• • • 113
• • 40
+
90 degrees
+ 90 deqrees
• • • 100
+
90 degrees
+ 90 deqrees
• • 28
• • 51
• • • 25 + 50 deqrees
• •
• • •
25
20
• • 50
25
• 10
• •
• • •
28
25
• •
• • •
83
142
• • 25
• • • 28
• • 155
• • • 190
• •
• • •
83
118
• •
• • •
25
44
• • • 44
• • 83
• • • 19
• • • 19
• • • 118
• • • 25
• • • 25
• • 80
• • • 49
• • • 29
• • • 98
• • • 71
• • • 55
• • • 15
• • • 29
• • • 25
• • • 23
32
• •
• • • 34
30
• • 30
expert22 fl/i* http://rutracker.org 23

PART G: BRAKING SYSTEM
Job 49. Check front brakes
Job 50. Check rear brakes
Job 51. Check/adjust handbrake
Job 52. Check brake pipes
Job 53. Change brake hydraulic fluid
SERVICE INTERVALS
C
C
C
C
E
Job 56. Check seat and seat belt mountings C
Job 57. Check headlight alignment C
Job 58. Check underbody C
Job 59. Check spare tyre B
Job 60. Change pollen filter C
Job 61. Replace airbag gas generator 10 years
PART I: ROAD TEST
PART H: BODYWORK & INTERIOR
Job 54. Lubricate hinges and locks
Job 55. Check windscreen
Job 62. Road test and specialist check. AFTER EVERY
SERVICE

ENGINE BAY LAYOUTS
These are the engine bay layouts common to almost all Tipo/Tempras. Note that there is no carburettor fitted to fuel-injected
vehicles.
1 - PETROL ENGINES 2 - DIESEL ENGINES
1
-
oil filler cap 7
-
distributor (ignition) 12 - oil filter location
2
-
engine oil dipstick 8
-
coil (ignition) 13
-
fuel pump (mechanical)
3
-
coolant filler cap 9
-
electronic control unit (ECU), 14
-
diesel injection pump
4 - brake fluid reservoir Digiplex 2 15
-
alternator location (behind engine)
5 - battery 10
-
air filter housing
6
-
screenwash reservoir cap 11
-
fuel filter
PART A: REGULAR CHECKS
1B. ...and the diesel's
dipstick is in a similar
spot, located at the
front edge of the
timing cover, behind
the right-hand
headlight.
Q INSIDE INFORMATION: The
difference between MIN and MAX
marks is approximately one litre of
oil. Q
We recommend that these Jobs are carried out on a weekly
basis, as well as before every long journey. They consist of
checks essential for your safety and for your car's reliability.
• Job 1. Engine oil
-
check level.
Check the engine oil level with the car on level ground. If the
engine has been running, leave it turned off for several
minutes to let the oil drain into the sump.
1A. All petrol engines
have the dipstick at
the front of the block,
towards the timing
belt end...
1C. Lift the dipstick out,
wipe it dry and re-insert it. The oil
level is correct when between the
MAX and MIN marks.

LUGGAGE COMPARTMENT LIGHT
7b. TIPO: Pull the lens
downwards to remove
it. Remove and replace
the 5W tubular bulb.
7c. TEMPRA SALOON:
From inside the boot,
lever the light unit out
of its slot with a screw-
driver. Remove and
replace the 5W tubular
bulb (A).
DASH BULBS
See Chapter 6, Repairs and Replacements for details of
instrument panel removal for access to its light bulbs. The
bulbs are a quarter-turn fit in the back of the panel.
FACT FILE: FUSES
• 7d. The fuse box is
found to the side of
the steering column.
Pull the lever
marked FUSE...
• ...and lower the fuse box.
• 7e. A symbol above each fuse tells you which circuit it
protects. Four spare fuses are located near the top of the
fuse box.
10A Instrument power supply, windscreen
washer pump, rear screen washer pump,
reverse lights, steering column switch lights,
FIAT CODE system.
10A Instrument power supply, left tail light,
right number plate light, right side light, left
trailer tail light.
10A Illumination of controls, right tail light,
left number plate light, right tail light.
20A Horns, cigarette lighter, stop lights.
20A Power locks.
7.5A Interior lighting.
20A Rear window heater and indicator light,
door mirror defogging elements (if fitted).
10A Hazard warning lights.
25A Electrical fan for radiator cooling (only
for petrol versions without air conditioner).
7.5A Direction indicators, right door power
mirror (if fitted).
7.5A Rear fog-guard lights and panel
indicator.
20A Front fog lights and panel indicator
(if fitted).
10A Right low beam headlight.
10A Left low beam headlight.
SERVIZI SERVICES
iOO:
-00 r
Q
M
mp
o$
ID
ID
7e
10A Left high beam headlight and panel
indicator.
10A Right high beam headlight.
20A Windscreen wiper.
20A Read window wiper, power sunroof and
heated seat (if fitted).
20A Heater/ventilation fan.
Fuses located on the auxiliary panel
The fuses protecting special devices (options, features of
special versions or devices with high power require-
ments) are on an auxiliary panel to the side of the fuse
box under the dashboard. It is much easier to remove
and replace auxiliary panel fuses if you first remove the
oddment tray and moulding fastened by 5 screws. The
panel also houses a number of relays:
20A Intake manifold heater (petrol engines).
20A Diesel fuel filter heater (diesel and turbo diesel
engines).
20A Headlight washer pump.
25A Front power windows.
25A Rear power windows.
10A Antilock braking system.
7.5A Low beam headlight dimming system (for countries
where headlights always need to be on.)
30A Radiator fan (diesel versions).
40A Radiator fan (turbo diesel versions with heater).
60A Radiator fan (turbo diesel versions with air condi-
tioning).
The arrangement of the fuses on the auxiliary panel
varies with the number and type of devices present.
The amperage is clearly marked on each fuse. ALWAYS
replace a blown fuse with one of the correct amperage.
NEVER 'fix' a fault by using a fuse of a higher amperage,
nor 'bridge' a blown fuse
-
it could cause a fire!
7f. When a fuse is 'blown'
its conductor wire (A) has
a gap in it.
If a fuse blows, find out
why and put it right
before fitting a new fuse.
(7)
o m f (7) (7)
0 tJ 7f

26B. If adjustment is
necessary, slacken the
tensioning nut (A) and
the alternator pivot (B),
on all models. (These
are two typical
layouts.)
Use a length of wood
to pivot the alternator
away from the engine
block but take great
care not to damage the
alternator casing.
Tighten the nuts/bolts
when the tension is correct.
RIBBED BELTS ONLY
If your vehicle is fitted with a ribbed belt, pivot the alternator
as described above and tighten it when you can just twist the
belt by 1/4 turn in the middle of its longest run.
IMPORTANT NOTE:
• Belt tension should only be adjusted when the engine
is cold.
• After adjustment, run the engine for 15 to 30 seconds,
to allow the belt to bed-in, then check again.
• Experience mechanics claim that belts often go slack
when the engine heats up, producing belt squeal.
• If this happens on your vehicle, adjust the belt again
when the engine is hot. Wear industrial leather gloves
and long-sleeved overalls and take very great care not to
burn yourself on the hot engine or exhaust.
If there is an auxiliary unit, such as an air conditioning pump,
driven by a separate drive belt, examine and adjust it as
described here.
Q Job 27. Check electric fan operation.
Drive the car until it is at normal operating temperature. Park
outdoors and, with the gearbox in neutral (or 'P' in the case of
an automatic) leave the engine running. At just above normal
temperature the electric cooling fan should come on, and
then go off again when the temperature drops. Refer to your
temperature gauge, if fitted. If the fan doesn't behave, check
the thermo-switch on the radiator, along with all connections
and wires in its circuit with the fan motor. See Job 13 and
Chapter
6,
Repairs and Replacements.
• Job 28. Run diagnostic ignition/injection test.
DIAGNOSTIC TEST
28A. Have your FIAT dealer
carry out a diagnostic test,
plugging his tester into the
diagnostic socket tucked away
at the front of the passenger-
side footwell.
EMISSIONS TESTS
Vehicles fitted with the Mono-Jetronic fuel injection system
are not fitted with adjustment screws. The system is self-
regulating. However, specified annual checks carried out with
an exhaust gas analyser will provide essential information on
the condition of the injection/ignition system, the catalytic
converter and the engine itself.
28B. The checks are carried out twice: once with the test
sensor at least 300 mm into the end section of the exhaust
pipe (a). (If the shape of the end section of the exhaust pipe is
such that the sensor cannot be completely introduced, a
special extension pipe must be added ensuring that the joint
with the car's tail-pipe is sealed.); the second after undoing
the cap or nut on the exhaust pipe upstream of the catalytic
converter (b).
The following table shows the test limits for carbon monoxide,
unburned hydrocarbons (in parts per million) and carbon
dioxide:
CO (%) HC (p.p.m.) C02(%)
Upstream of the catalyzer (a) 0,4 -h 1 500/600* >12
Downstream of the catalyzer (b)
=£
0,35 =s 90 >13
* FIAT's figures vary.
IMPORTANT NOTE: The engine must be at its normal
operating temperature and normal tick-over speed.
• if the percentage concentration of CO upstream of the
catalytic converter is not within the limits in the table,
check:
• the Lambda sensor
-
see Job 37.
• air penetration around the Lambda sensor housing.
• faults in the ignition or injection systems. (First try
renewing the spark plugs, distributor cap and HT leads.)
If, at the same time, the concentration of hydrocarbons
is not less than 500/600 parts per million (FIAT'S figures
vary), check:
• the ignition timing (see Job 25).
• the valve clearances (see Job 9).
• the valve gear timing (see Job 12).
• the engine compression. (You will need to remove the
spark plugs, fit a compresson tester to each plug
aperture in turn and crank the engine. See the FACT FILE
on page 51.)

ELECTRONIC CONTROL MODULE: The ECU is not an item
that requires any servicing. If you think it might be faulty, ask
your FIAT dealer or fuel injection specialist to check it for you.
This must be done by someone with the correct FIAT plug-in
diagnostic equipment and data.
CATALYTIC CONVERTER: The CAT is not serviceable. If it
fails, you will be told at the MoT test. Replacement is
expensive, so we recommend you obtain a second opinion
before replacing the 'cat'.
LAMBDA SENSOR: For information concerning the sensor,

see
Job
37.

I' sensor is a simple job (see
Chapter 6, Repairs and
Replacements, PART F: FUEL AND EXHAUST), but it
can only be tested by your FIAT dealer with the correct
equipment
• If the sensor is faulty, have it renewed by your
dealer.
• Lambda sensors are very delicate and easily
damaged. It is not likely that you would be able to
return one to the supplier if you fitted it yourself.
• Lambda sensors are only fitted to cars with a
catalytic converter.
• Job 38. Check/adjust diesel idle speed.
To accurately check and adjust the diesel's idle speed you
need a diesel-specific rev-counter. If you're happy with the idle
speed, leave well alone. But if you're convinced the idle is
incorrect, it's best to take the car to a FIAT dealer. If you wish
to adjust the speed yourself, get the engine to normal
operating temperature, and check there is some free play in
the accelerator cable before proceeding.
ADJUSTMENT
-
BOSCH PUMP
D INSIDE INFORMATION: If the canister is flooded with
petrol, it is probable that one of the purge valves or
purge valve floats is faulty. Get this investigated and
rectified by a FIAT dealer. If the engine cuts out and then
restarts after a while, it could be the breather hose
valve, fitted under the fuel filler neck. This one-way
valve allows air to enter the tank as the fuel level falls,
otherwise an air lock can prevent fuel reaching the
engine. To test the valve, take off the pipe clips, remove
the valve and test it as for the canister one-way valve,
above. It should allow air to pass into the tank, but not
the other way. H
Q Job 37. Check Lambda sensor.
PETROL INJECTION MODELS ONLY
For
a
description of how the sensor works, see Job 36, FACT
FILE: EMISSION CONTROL SYSTEM. It should be checked at
the recommended interval
-
the cost of checking and
replacing the sensor is far less than that of having to replace
the catalytic converter because it has been polluted due to a
sensor fault.
38A. Adjust the idle
speed, which
should be approxi-
mately 800 rpm, by
slackening the lock-
nut of the adjuster
screw (1) then
turning the screw
inwards to increase
the speed
-
or
outwards to
decrease. Retighten the lock-nut when the speed is correct.
ADJUSTMENT
-
LUCAS/ROTODIESEL/CAV PUMP
38B. Adjust the idle speed, which should be approximately
800 rpm, by slackening the lock-nut of the adjuster screw (A)
and turning the screw to give the desired speed. Retighten the
lock-nut, then rev the engine high and allow it to return to
idle. If it goes below idle speed (i.e. it threatens to stall, or
does stall), or if it decelerates too slowly, slacken the lock-nut
of the adjuster screw (B), adjust it and check the deceleration
again. Repeat as necessary to achieve comfortable deceler-
ation without stalling, then tighten the lock-nut.
36C. CHARCOAL
CANISTER: This unit is
located behind the car's
front panel, and does not
need regular servicing.
Check the canister one-
way valve (see Chapter

6,
Repairs and
Replacements, Part F,

FUEL
AND EXHAUST
for illustration) by discon-
necting it and trying to
blow through both ends.
You should only be able
to blow air towards the
canister, not away from
it. If the valve is faulty,
renew it, making sure
that it
is
fitted the right way round.

SAFETY FIRST! • Step 7:
Disconnect the
electrical leads from
the following: the
inlet manifold
• Step 2: Disconnect both battery leads, negative
terminal first.
Q Step 3: Drain the cooling system and depressurise the
fuel system, if yours is a fuel injection engine
-
see PART
F:

FUEL AND EXHAUST
• Step 6B:
INJECTION
ENGINES.
Disconnect the
engine end of the
accelerator cable (a),
the idle speed check
actuator (b) and the
injector supply (c).
• Step 8: Detach
the exhaust
downpipe from the
manifold.
• Step 9: Remove
the dipstick
(arrowed) and the
cylinder head
coolant temperature
sensor (arrowed).
• Step 10: Also remove all the HT leads (along with the
distributor cap). Place them to one side.
• Step 11: Undo the brake servo hose from the manifold.
Q Step 4: Remove the air cleaner by releasing the spring
clips (a) at the front of the unit and the screw on the top face
(b) and disconnect the hoses
Remove the oil vapour
recovery pipe clips from beneath the rear of the housing, once
it is free to lift up.
Q Step 5: Disconnect the crankcase vent hose from the
cylinder head and the inlet tract or the SPI injector unit, as
appropriate and blank off with a bolt of suitable size.
• Step 6A:
CARBURETTOR
ENGINES.
Disconnect the
engine end of the
accelerator cable
from its idler and
the choke cable
from its mounting.
Q Step 12: Remove the
water hoses connected to
the inlet manifold and
thermostat.
• Step 13 A:
CARBURETTOR
ENGINES. Disconnect the
fuel pipe from the carbu-
rettor and both pipes
from the fuel pump.
(Label both the pipes and
stubs so that they will be
reconnected the
right way round.)
• Step 13B:
INJECTION
ENGINES.
Disconnect the fuel
supply and return
hoses from the
injector unit housing
(a). Plug the ends.
• Step 14A: CARBURETTOR ENGINES. Disconnect the
distributor vacuum pipe and oil vapour pipes from the carbu-
rettor.
vacuum sensor
(arrowed), the
manifold coolant
temperature sensors
(arrowed) and the
throttle position
switch and any
other leads which your engine may have.

G Step 17: Now repeat this operation on the remaining
valves.
G Step 18: Wash the whole cylinder head again using
paraffin and an old brush, making sure that all traces of
grinding paste are removed, then dry off. Use compressed air

if
available.
SAFETY FIRST!
•
Treat
compressed air with respect. Always wear

goggles
to protect your eyes.
•
Never
allow the airline nozzle near any of the body Sep apertures.
H INSIDE INFORMATION! Check the height of the valve
springs against new ones if possible, but if not, compare
them with each other. If any are shorter than the others,
play safe and replace the complete set. They are bound
to have suffered fatigue which could cause premature
valve failure. H
G Step 19: To install the valves, start from one end.
Lubricate a valve stem with fresh engine oil and slide it in to its
guide.
G Step 20: Locate a new valve stem seal over the stem of

the valve
(if applicable) and push down into contact with the
guide. Position the seal on its seat using a suitable metal tube.
G Step 21: Refit the flat washer and spring seat.
G Step 22: Position the inner and outer springs and the

spring
cap.
G Step 23: Re-apply the valve spring compressor and

compress
the springs enough to allow you to engage the split
collets
in
the stem grooves.
D INSIDE INFORMATION! Grease the grooves so that the
collets will 'stick' in place. The collets are easily fitted by
'sticking' the backs of them onto the end of a screw-
driver with some grease and feeding them into
position. B
G Step 24: Carefully release the spring compressor and

check
that the collets are correctly located. Tap the end of the

stem with
a hammer, to bed them in.
G Step 25: Fit the remaining valves.
Job 5. Petrol engine -
dismantling.
G Step 1: Familiarise yourself with the layout of the engine.

Refer to
illustration Job
2-1
for an exploded view of the

engine
components.
G Step 2: Drain the engine oil. Remove the cylinder head.
See
Job 2.

G Step 3: Remove the distributor. See PART D: IGNITION
• Step 4:
Remove the petrol
pump and spacer
block, if the
mechanical type
(a). (Electric fuel
pumps are in the
fuel tank.)
• Step 5:
Remove and
discard the oil filter
illustration Job
5-4,

• Step 6: Remove the water pump complete with its distri-
bution pipe, and the power steering pump (if fitted).
Q Step 7: Remove the alternator, the crankshaft pulley, the
crankshaft and camshaft sprockets, the cam belt tensioner
and the cam belt cover backplate.
• Step 8:
Remove the
auxiliary shaft
sprocket...
• Step 9: ...the
end plate and
seal, and remove
the auxiliary shaft.
• Step 10:
Undo and remove
the clutch, and
then the flywheel.
• Step 11: Turr
engine assembly c
remove the sump
and remove the crankcase breather (see
part b) with its pipe.