1 General information and
precautions
The fuel system used on Rover 820e and
Se models consists of a centrally-mounted
fuel tank, electric fuel pump and single-point
fuel injection (SPi) system, together with its
related electrical and mechanical
components. A more detailed description of
the SPi system is contained in Section 10.
The exhaust system consists of a front,
intermediate and rear section, suspended
from the underbody on rubber mountings, and
bolted to a cast iron manifold at the front. A
ball-and-socket universal joint is incorporated
in the front section, to allow for engine and
exhaust system movement.
Precautions
Warning: Many of the
procedures in this Chapter
require the removal of fuel lines
and connections, which may
result in some fuel spillage. Petrol is
extremely flammable, so take extra
precautions when you work on any part of
the fuel system. Don’t smoke, or allow
open flames or bare light bulbs, near the
work area. Don’t work in a garage where a
natural gas-type appliance (such as a
water heater or clothes dryer) with a pilot
light is present. If you spill any fuel on your
skin, rinse it off immediately with soap and
water. When you perform any kind of work
on the fuel system, wear safety glasses,
and have a Class B type fire extinguisher
on hand. Before carrying out any operation
on the fuel system, refer also to the
precautions given in “Safety first!” at the
beginning of this manual, and follow them
implicitly. Petrol is a highly-dangerous and
volatile liquid, and the precautions
necessary when handling it cannot be
overstressed.
Reference must also be made to Chapter 5,
Section 1 for precautionary notes concerning
the ignition system and battery disconnection,
and to any further safety-related text
contained within the appropriate Section,
before working on the vehicle.
Certain adjustment points in the fuel system
are protected by tamperproof caps, plugs or
seals. In some territories, it is an offence to
drive a vehicle with broken or missing
tamperproof seals. Before disturbing a
tamperproof seal, first check that no local or
national laws will be broken by doing so, and
fit a new tamperproof seal after adjustment is
complete, where required by law. Do not
break tamperproof seals on any vehicle whilst
it is still under warranty.
When working on fuel system components,
scrupulous cleanliness must be observed and
care must be taken not to introduce any
foreign matter into the fuel lines or
components. The throttle body in particular is
a delicate instrument and care must be taken
not to disturb any components unnecessarily.
Before attempting work on the throttle body,
ensure that the relevant spares are available;
it should be noted that a complete throttle
body strip down is unlikely to cure a fault
which is not immediately obvious, without
introducing new problems. If persistent
problems occur, it is recommended that the
services of a Rover dealer or fuel injection
specialist is sought.
2 Air cleaner assembly -
removal and refitting
1
Note: Air cleaner element renewal is
described in Chapter 1.
Removal
1 Slacken the hose clip securing the intake
trunking to the air cleaner body, and release
the HT cable from the support clip.
2 Undo the five upper bolts securing the air
box to the injector housing and support
bracket.
3 Lift up the air box, and disconnect the
wiring multiplug at the air temperature sensor,
and the vacuum hose at the fuel trap (see
illustrations).
4 Disconnect the vacuum hose from the inlet
manifold connection, and from the vacuum
motor on the air cleaner (see illustrations).
Remove the air box and intake trunking
assembly.
5 Undo the bolts securing the air cleaner
body and the forward air trunking assembly to
their support brackets (see illustrations). Lift
4A•2 Fuel and exhaust systems - single-point injection engines
2.5b . . . right-hand retaining bolt . . .2.5a Undo the air cleaner body left-hand
retaining bolt (arrowed) . . .
2.4b . . . and at the vacuum motor
2.4a Disconnect the vacuum hose at the
inlet manifold . . .
2.3b . . . and disconnect the air
temperature sensor multiplug
2.3a Lift up the air box . . .
1380 Rover 800 Series Remake
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