Ford Falcon. Manual — part 146

303-01c-5

Engine — V8 (4V)

303-01c-5

SPECIFICATIONS (Continued)

Description

Nm

Radio ignition interference capacitor

10

bolts
Rear main oil seal retainer bolts

10

Spark plugs

10

Timing chain guide bolts

10

Timing chain hydraulic tensioner bolts

25

Water pump bolts

20-30

Water pump pulley bolts

25

Power steering bracket lower bolts

25

Motor mount cross bolts

80

Motor mount through bolts

80

¹ Refer to the procedure in this section.

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303-01c-6

Engine — V8 (4V)

303-01c-6

DESCRIPTION AND OPERATION

A constant fuel pressure drop is maintained across

Engine

the fuel injectors by the fuel pressure regulator. The

fuel pressure regulator:

The 5.4L (4V) is a V-8 engine with the following

features:

is positioned upstream from the fuel injectors on

the fuel injection supply manifold.

dual overhead camshafts
four valves per cylinder

Valve Train

sequential multiport fuel injection (SFI)

The valve train operates as follows:

an aluminum intake manifold

Ball tip hydraulic lash adjusters provide automatic

aluminum cylinder heads

lash adjustment.

a cast iron, 90-degree V-cylinder block

Roller followers ride on the camshaft lobes,

individually chain-driven camshafts with a

transferring the up-and-down motion of the

hydraulic timing chain tensioner on each timing

camshafts to the valves in the cylinder heads.

chain

Positive Crankcase Ventilation System

the electronic ignition system with eight ignition

coils

All engines are equipped with a closed-type positive

crankcase ventilation system recycling the crankcase

Identification

vapors to the upper intake manifold.

Always refer to these labels when new parts are

Lubrication System

required or when checking engine calibrations. The

engine parts often differ within a CID family.

The engine lubrication system operates as follows:

Verification of the identification codes will make sure

Oil is drawn into the oil pump through the oil

that the correct parts are obtained. These codes

pump screen cover and tube in the sump of the oil

contain all the pertinent information relating to the

pan.

dates, optional equipment and revisions. The Ford

Oil enters the main oil gallery where it is

Master Parts Catalog contains a complete listing of

distributed to the crankshaft main journals and to

the codes and their application.

both cylinder heads.

Code Information

From the main journals, the oil is routed through

cross-drilled passages in the crankshaft to

The engine code information label, located on the side

lubricate the connecting rod bearings. Controlled

of the LH valve cover towards the rear, contains the

leakage through the crankshaft main bearings and

following:

connecting rod bearings is slung radially outward

engine build date

to cool and lubricate the cylinder walls as well as

engine plant code

the entire connecting rod, piston and piston rings

assembly.

engine code

The left cylinder head is fed from a drilling into the

Induction System

supply passage feeding the main gallery at the

front of the cylinder block. The right cylinder head

The sequential multiport fuel injection (SFI) provides

is fed from a drilling into the rear of the main

the fuel/air mixture needed for combustion in the

gallery. Main gallery pressure is reduced as it

cylinders. The eight solenoid-operated fuel injectors:

enters the cylinder head galleries through fixed

are mounted in the fuel injection supply manifold

serviceable orifices located at the upper part of

and the intake manifold above the cylinder heads.

the feed passages. It is this reduced pressure in

meter fuel into the air intake stream in accordance

the cylinder head galleries which feeds the

with engine demand.

camshaft journals, the hydraulic lash adjusters

are positioned so that their tips direct fuel just

and the primary and secondary timing chain

ahead of the engine intake valves.

tensioners.

are connected in series with the fuel pressure

The camshaft lobe and roller followers are

regulator.

lubricated by splash created through valve train

operation.

supply fuel from the fuel tank by a fuel pump

mounted in the fuel tank.

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303-01c-7

Engine — V8 (4V)

303-01c-7

DESCRIPTION AND OPERATION (Continued)

Oil Pump

The lubrication system of the 5.4L (4V) engine is

designed to provide optimum oil flow to critical

components of the engine through its entire operating

range. The heart of the system is a positive

displacement internal gear oil pump using top seal

rotors.
Generically this design is known as a gerotor pump,

which operates as follows:

The oil pump is mounted on the front face of the

cylinder block.
The inner rotor is piloted on the crankshaft post

and is driven through flats on the crankshaft.
System pressure is limited by an integral,

internally-vented relief valve which directs the

bypassed oil back to the inlet side of the oil pump.
Oil pump displacement has been selected to

provide adequate volume to ensure correct oil

pressure both at hot idle and maximum speed.
The relief valve calibration protects the system

from excessive pressure during high viscosity

conditions.
The relief valve is designed to provide adequate

connecting rod bearing lubrication under

high-temperature and high-speed conditions.

Cooling System

The engine cooling system includes the following:

radiator
water pump
twin electric fans
surge tank(aids in maintaining the correct volume

of engine coolant) & vent hoses
water thermostat housing
upper radiator hose
lower radiator hose
heater water hoses & tubes
water bypass tube

Drive Belt System

The 5.4L (4V) DOHC engine is equipped with a

serpentine drive belt. To make sure of maximum life,

a new drive belt should be of the same type as

originally installed.

The accessories mounted on the front of the

engine are belt-driven by the crankshaft.
The serpentine drive belt is routed over each

accessory pulley, driven by the crankshaft pulley

bolted to the crankshaft.

For service procedures, including tensioning, refer to

Section 303-05.

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303-01c-8

Engine — V8 (4V)

303-01c-8

DESCRIPTION AND OPERATION (Continued)

Item

Description

Item

Description

13

Bolt (3 req’d)

1

Bolt

14

Engine front cover

2

Washer

15

Bolt (4 req’d)

3

Bolt (4 req’d)

16

Timing chain tensioner

4

Bolt

17

Timing chain tensioner arm

5

Belt idler pulley

18

Timing chain (2 req’d)

6

Water pump pulley

19

Timing chain guide

7

Crankshaft pulley

20

Timing chain tensioner

8

Stud (5 req’d)

21

Timing chain tensioner arm

9

Bolt

22

Timing chain (2 req’d)

10

Camshaft position sensor

23

Bolt (3 req’d)

11

Bolt

24

Timing chain guide

12

Crankshaft position sensor

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