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7
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Fit and tighten down the short cylinder head
bolt with its washer - this bolt shouid be inserted
down through the cylinder head fins to the centre
front position. The cylinder head shouid be pulled
down to the gasket against valve spring pressure
using this bolt.
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8
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Check that all four pushrods are correctly
engaged to the ball ends of the rocker arms.
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9
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If pushrod engagement is correct, fit the four
bolts with washers on either side of the sparking
plugs, followed by a long sleeve nut under each
exhaust port and a short nut under the inlet ports,
(these are without washers) and 2 5/16 in. nuts and
washers on the studs (no's 9 and 10 in Fig. C2)
which seal the joint by the pushrod tunnel. There
are no washers on the nuts fitted from beneath the
cylinder head.
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10
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Finally tighten the cylinder head bolts and nuts
in the order shown in Fig. C2. The torque
settingsare:
Cylinder head bolts and nuts 3/8 in: 30 Ibs./ft.
(3.68 Kg/m).
Cylinder head bolts 5/16 in.: 20 Ibs./ft. (2.75
Kg/m).
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11
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Adjust the rocker clearances as .described in
Section C10.
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12
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Using new sealing gaskets only if the originals
are unfit for further use, refit the inlet and
exhaust rocker covers and secure with the blind
nuts. There is a washer only at the inlet rocker
cover nut.
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13
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Refit the carburettors with spacers as described
in Section E5, and refit the sparking plugs to
avoid washers being dropped into the engine during
the next operation.
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14
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Refit the cylinder head steady as a reversal of
the dismantling procedure.
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15
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Reconnect the rocker feed pipe banjos at the
cylinder head using copper washers at each side of
the banjos. Take care that the plastic part of the
rocker pipe is clear of the rocker boxes, cylinder
head and head steady.
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16
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Refit the coil cluster to the frame as a
reversal of the dismantling procedure and connect
the spark plug caps.
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17
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Reconnect the low tension leads from the contact
breaker to the main harness. These leads are
coloured white/black and yellow/black and should be
connected colour to colour. The standard assembly
procedure is white/black to right cylinder and
yellow/black to left cylinder.
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18
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Refit the exhaust system (Section F19).
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19
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Refit the fuel tank (Section F9) and connect the
fuel lines.
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20
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Refit the scat and secure with the knurled side
nuts.
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21
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Refit the fuse.
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