Ford Orion. Manual - part 35
Refitting
9 Clean the carburettor and the inlet manifold
mating faces.
10 Refit the carburettor in the reverse order
of removal, ensuring that a new gasket is
fitted.
11 If they are perished or were damaged during
removal, renew the fuel and/or vacuum hoses.
12 Reconnect the automatic choke unit
hoses, and then check/top-up the cooling
system if required, as described in Chapter 1.
13 Finally, check the idle speed and fuel
mixture settings, and adjust if necessary as
described in Chapter 1.
24 Carburettor (Weber TLD) -
dismantling, cleaning/
inspection and reassembly
4
1 Proceed as described in Section 17 for the
TLDM carburettor, but refer to the appropriate
illustrations for the TLD type carburettor (see
illustrations). The following differences
should also be observed:
a)
When refitting the adjuster screw, make
the initial adjustment by screwing it fully
into position (without overtightening it),
then unscrewing it by three full turns.
b)
Refer to Section 20 to adjust the needle
valve and float.
c)
When the carburettor is reassembled and
refitted, check and adjust it as described
in Chapter 1.
25 Exhaust system - general
information and component
renewal
1
Warning: Inspection and repair of
exhaust system components
should be done only after enough
time has elapsed after driving the
vehicle to allow the system
components to cool completely. This
applies particularly to the catalytic
converter, which runs at very high
temperatures. Also, when working under
the vehicle, make sure it is securely
supported on axle stands.
1 The exhaust system is composed of an
exhaust manifold, the front downpipe and
catalytic converter (where fitted), and a main
section incorporating two silencers. The
service replacement exhaust system consists
of three sections: the front downpipe/catalytic
converter, the intermediate pipe and front
silencer, and the tailpipe and rear silencer.
The system is suspended throughout its entire
length by rubber mountings (see illustration).
2 If any of these parts are damaged or
deteriorated, excessive noise and vibration
will occur.
3 Conduct regular inspections of the exhaust
system, to keep it safe and quiet. Look for any
damaged or bent parts, open seams, holes,
loose connections, excessive corrosion, or
other defects which could allow exhaust
fumes to enter the vehicle. Deteriorated
exhaust system components should not be
repaired - they should be replaced with new
parts.
4 If the exhaust system components are
extremely corroded or rusted together, they
will probably have to be cut from the exhaust
system. The most convenient way of
accomplishing this is to have a quick-fit
exhaust repair specialist remove the corroded
sections. If, however, you want to save money
by doing it yourself (and you don’t have an
oxy/acetylene welding outfit with a cutting
torch), simply cut off the old components with
a hacksaw. If you have compressed air,
special pneumatic cutting chisels can also be
used. If you do decide to tackle the job at
home, be sure to wear eye protection, to
protect your eyes from metal chips, and work
gloves, to protect your hands. If the
production-fit system is still fitted, it must be
cut at the points shown (see illustration) for
the service-replacement system sections to
fit.
5 Here are some simple guidelines to apply
when repairing the exhaust system:
a)
Work from the back to the front when
removing exhaust system components.
b)
Apply penetrating fluid to the exhaust
system component fasteners, to make
them easier to remove.
Fuel and exhaust systems – carburettor engines 4A•15
24.1B Float and needle valve removal on
the Weber TLD carburettor
A Fuel feed connection C Needle valve
B Float
24.1A Removing the Weber TLD
carburettor upper body
23.8C . . . and lift the carburettor from the
manifold
24.1C Jet arrangement in the upper body of the Weber TLD carburettor
A Primary air correction jet
C Secondary main jet
B Secondary air correction jet
D Primary main jet
4A