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3.60 The cylinder head gasket is fitted ALTO upward s 3.61 Lower the cylinder head onto the block
3.62A Tighten the cylinder head bolts and nuts to t he
specified torque 3.62B These cylinder head nuts might be difficult
to torque
tighten
3.64 Distributor driveshaft skew gear 3.65 Checkin g the contact breaker gap
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altering the throttle speed screw.
16 On earlier carburettors, or if new components
have been fitted to carburettors having a
tamperproof screw, then the slow-running and
mixture can be altered, but only if an exhaust
gas analyser is available in the case of later
carburettors, after the tamperproof cap has been
broken off.
17 On earlier units, use a device such as a
mixture adjustment aid or a vacuum gauge fitted
in accordance with the manufacturers'
instructions to obtain the correct slow-running
adjustment.
18 On later units, an exhaust gas analyser,
again used in accordance with the maker's
instructions, will ensure that the CO level is
within the limits specified. Fit a new tamperproof
cap on completion.
Weber dual venturi carburettor
Removal and refitting
19 These operations are similar to the
operations described in paragraphs 3 to 9 of this
Section, but the unit is of manually operated
choke design and will therefore not have coolant
hose attachments. A choke cable is fitted
instead.
Dismantling and adjustment
20 The operations are similar to those described
for the single venturi type carburettor, once the
upper body has been removed (six screws).
21 If jets are extracted, identify them as to which
side of the carburettor (primary or secondary)
they came from.
4.4 Throttle cable connection to Weber single ventu ri
carburettor 4.5 Weber single venturi carburettor installed (va
cuum pipe
arrowed
4.7 Weber single venturi carburettor showing coolan t hoses
(arrowed) to automatic choke housing. Note fuel hos es
connected to top right of carburettor 7.6 Location of fuse block - 1049 cc engine models
