Refitting
52Refitting is a reversal of removal, bearing
in mind the following points.
53Ensure that all mating faces are clean and
renew the gasket(s).
54Tighten the manifold securing nuts
progressively to the specified torque.
55Make sure that all hoses, pipes and wires
are correctly reconnected, and if the fuel
supply hose was originally secured with a
crimped type clip, discard this and use a new
worm drive clip on refitting.
56On completion, refill the cooling system,
adjust the throttle cable and check and if
necessary adjust the idle speed and mixture.
Removal
1Disconnect the battery negative lead.
2Remove the air cleaner and pull the hot air
pick-up pipe from the exhaust manifold hot air
shroud.
3Remove the securing screws (1 screw on
DOHC models, 2 screws on SOHC models, 3
screws on CVH models) and lift the hot air
shroud from the manifold. Note the position of
the coolant hose bracket which is secured by
the front hot air shroud securing screw on
SOHC models (see illustration).
4Unscrew the securing nuts, and disconnect
the exhaust downpipe from the manifold (see
illustration). Recover the gasket. Support the
exhaust downpipe from underneath thevehicle, with an axle stand for example, to
avoid placing unnecessary strain on the
exhaust system.
5Disconnect the HT leads from the spark
plugs, if necessary identifying them for
locations, and place them to one side out of
the way.
6Unscrew the eight securing nuts, noting the
location of the front engine lifting bracket
secured by the front two nuts on SOHC
models, and lift the manifold from the cylinder
head. Recover the gasket(s) where applicable
(see illustrations).
Refitting
7Refitting is a reversal of removal, bearing in
mind the following.
8Ensure that all mating faces are clean, and
renew all gaskets. Note that on CVH models,
no gasket is fitted between the manifold andcylinder head in production, but a gasket
must be used when refitting. Where
applicable, remove the plastic spacer from the
rear manifold stud before fitting the gasket
(see illustrations).
26Exhaust manifold - removal
and refitting
Fuel and exhaust systems - carburettor 4A•17
4A
26.6a Unscrew the exhaust manifold
securing nuts . . .
26.8c Fitting the exhaust manifold -
DOHC models26.8b Remove the plastic spacer (arrowed)
before fitting exhaust manifold gasket -
CVH models26.8a Exhaust manifold gaskets in position
on cylinder head - DOHC models
26.6d SOHC models have separate
manifold gaskets for each exhaust port26.6c . . . and lift off the exhaust manifold -
SOHC models26.6b . . . noting the location of the front
engine bracket . . .
26.4 Unscrewing an exhaust downpipe
securing nut26.3 Exhaust manifold hot air shroud
showing securing screws (1 and 3) and
coolant hose clip (2) - SOHC models
