Ford Granada 1985-1994, Owner'S Manual

Page: 131 / 254

24 Unbolt and remove the regulator from the
fuel rail. Remove the sealing O-ring and
discard it; a new one must be used on
refitting.
25 Refitting is a reverse of the removal
procedure applying a smear of clean engine oil
to the new regulator O-ring. On models
equipped with a late level regulator, ensure
that the return pipe is securely held in position
by the retaining collar.
26 On completion, switch the ignition on and
off five times without cranking the engine to
pressurise the fuel system.
27 With the system pressurised check all
disturbed fuel unions for signs of leakage.
1 The potentiometer is located on the right-
hand side of the engine compartment, behind
the MAP sensor.
2 Disconnect the battery negative lead.
3 Remove the securing screw, then withdraw
the potentiometer and disconnect the wiring
plug.
4 Refitting is a reversal of removal. On
completion adjust the idle mixture.
1 On 2.4 & 2.9 litre V6 engines, disconnect the
battery.
2 Disconnect the switch wiring connector.
3 Slacken and remove the switch from the
fuel rail (see illustration).
4 Refitting is a reverse of removal, tightening
the switch to the specified torque setting.
Carburettor models
All engines except DOHC
1 Remove the carburettor or, if preferred, the
final removal of the carburettor from the
manifold can be left until the manifold has
been removed).
2 Drain the cooling system.
3 Disconnect the coolant and vacuum pipes
from the manifold, noting their positions if
there is any possibility of confusion.
4 Disconnect the wires from the manifold
heater and the coolant temperature sender
unit.
5 Disconnect the crankcase ventilation hose
from the manifold.
6 Unscrew the six nuts and bolts which
secure the manifold and withdraw it. Recover
the gasket.
7 Before refitting the manifold, make sure that
the mating surfaces are perfectly clean.
8 Apply a bead of sealant at least 5 mm (0.2 in)
wide around the central coolant aperture on
both sides of a new gasket.
9 Place the gasket over the studs, then fit the
manifold and secure it with the six nuts and
bolts. Tighten the nuts and bolts evenly to the
specified torque.
10 The remainder of refitting is a reversal of
the removal procedure. Refill the cooling
system on completion.
DOHC engine
11 Disconnect the battery negative lead.
12 Drain the cooling system.
13 Remove the air cleaner.
14 Disconnect the coolant hoses from the
thermostat housing and the inlet manifold,
noting the locations to assist with refitting.
15 Disconnect the fuel supply and return
hoses from the carburettor. Plug their ends to
minimise petrol spillage.
16 Release the coolant hose from the bracket
under the automatic choke housing.
17 Disconnect the HT leads from the spark
plugs, and move them to one side.
18 Disconnect all relevant wiring and vacuum
pipes from the carburettor, thermostat
housing and inlet manifold, noting the
locations as an aid to refitting.
19 Disconnect the crankcase breather hose
from the inlet manifold.
20 Disconnect the throttle cable from the
throttle linkage.
21 Make a final check to ensure that all
relevant wires, pipes and hoses have been
disconnected to facilitate removal of the
manifold.
22 Unscrew the ten bolts and two nuts
securing the manifold to the cylinder head.
23 Lift the manifold clear of the cylinder head
and recover the gasket.
24 Recover the two plastic spark plug spacers
from the recesses in the cylinder head.
25 If desired, the carburettor can be removed
from the manifold by unscrewing the securing
screws.
26 Refitting is a reversal of removal, bearing
in mind the following points.
a)
Ensure that all mating faces are clean and
renew all gaskets.
b) Ensure that the spark plug spacers are in
position in the cylinder head recesses
before refitting the manifold.
c) Tighten all manifold securing nuts and
bolts progressively to the specified torque.
d) Make sure that all hoses, pipes and wires
are securely reconnected in their original
positions. Replace all crimp-type hose
clips (where fitted) with standard worm
drive hose clips.
e) On completion, refill the cooling system,
check the adjustment of the throttle cable,
then check, and if necessary adjust the
idle speed and mixture.
Fuel-injection models
SOHC engine
27 Disconnect the battery negative lead.
28 Drain the cooling system.
29 Disconnect the vacuum pipe(s) from the
manifold. The number of pipes varies
according to equipment. Label the pipes if
necessary (see illustration).
30 Disconnect the fuel-injection harness
multi-plugs at the bulkhead end of the
manifold (see illustration).
31 Disconnect the oil pressure warning light
sender wire from below the manifold.
32 Release the hose clips and move the
airflow meter-to-manifold trunking clear of the
manifold.
40 Inlet manifold - removal and
refitting
39 Fuel rail temperature switch -
removal and refitting
38 Mixture adjustment
potentiometer - removal and
refitting
Fuel and exhaust systems 4•19
4
39.3 Fuel rail components
A Fuel pressure regulator
B Fuel temperature switch
C Fuel rail
D Fuel injectors
40.29 Manifold vacuum pipe T-piece
(arrowed)
40.30 Fuel-injection wiring harness plugs