12 Disconnect the distributor low tension
lead at the connector, push the lead and
grommet into the inside of the distributor
body and lift away the condenser complete
with low tension lead assembly.
Ducellier
13 On the Ducellier distributor the condenser
is mounted externally and removal consists of
simply disconnecting the lead and undoing
the retaining screw.
Refitting
14 In all cases, refitting is the reverse
sequence to removal. On the Lucas 45D4 and
59D4 distributors, ensure that when the
terminal is connected to the tensioning arm,
the black lead is uppermost.
8 Distributor - removal and
refitting
3
Removal
1 Release the three plastic retaining lugs and
lift the ignition shield off the front of the
engine. On models that have a distributor
shield attached to the inner front panel, undo
and remove the retaining screws and
withdraw the shield.
2 Spring back the two distributor cap
retaining clips or undo the screws then place
the distributor cap to one side.
3 Gain access to the ignition timing marks by
undoing the two bolts securing the inspection
plate to the top of the flywheel housing and
lifting off the plate. On models fitted with
automatic transmission, withdraw the rubber
grommet from the top of the converter
housing. On later models there is a timing
scale on the timing cover, together with a
notch or pointer on the crankshaft pulley.
4 Turn the engine over until No 1 piston is
approaching TDC on the compression stroke.
This can be checked by removing No 1 spark
plug and feeling the pressure being developed
in the cylinder as the piston rises, or by
removing the rocker cover and noting when
the valves of No 4 cylinder are rocking, ie the
inlet valve just opening and the exhaust valve
just closing. On manual transmission models,
the engine can be turned over quite easily by
engaging top gear and moving the car
forwards. This should only be done on level
ground; and make sure that the car cannot
run away! An alternative method, and the
method that should be used on automatic
transmission models, is to press the fan belt
midway between the water pump pulley and
dynamo or alternator pulley and then turn the
fan blades.
5 Continue turning the engine, in the correct
direction of rotation, until No 1 piston is at
TDC on the compression stroke. Verify this by
checking that the timing marks are aligned.
The timing marks on the flywheel (or torque
converter), and the pointer on the housing,
can be viewed through the inspection
aperture using a small mirror (see
illustration). The 1/4 mark on the flywheel or
torque converter indicates TDC and should be
aligned with the pointer in the housing. On
later models with a timing scale on the timing
cover, the notch in the crankshaft pulley
should be aligned with the 0 pointer on the
timing cover scale.
6 The distributor rotor arm should now be
pointing towards the No 1 spark plug HT lead
segment in the distributor cap indicating that
the crankshaft is correctly positioned with
number 1 cylinder at TDC on its compression
stroke. Temporarily place the cap in position
to verify this if necessary. If the rotor arm is
pointing at the No 4 HT lead segment in the
cap, rotate the crankshaft one full turn (360º)
until the TDC timing marks are realigned and
the rotor arm is pointing at the No 1 segment.
7 On carburettor models, detach the
distributor vacuum advance pipe from the
vacuum unit (where applicable), then either
disconnect the low tension (LT) lead at the
connector or disconnect the ignition amplifier
multiplug according to distributor type (see
illustration).
8 Using a dab of paint or a small file, make a
mark between the distributor body and the
clamping plate. This will ensure that the
distributor is refitted in exactly the same
position and that the timing is not lost.
9 If the distributor is retained by a clamping
plate having a pinch bolt and nut, slacken one
of the bolts securing the clamping plate to the
cylinder block and then slacken the pinch
bolt. If a C-shaped plate is used to retain the
distributor, undo and remove the securing
bolt and lift away the plate.
10 The distributor can now be withdrawn
from the engine.
5B•10 Ignition system
8.5 The timing marks on the flywheel can
be viewed through the aperture in the
housing using a mirror
8.7 Distributor removal
Inset: Timing marks: A Automatic transmission B Manual transmission
1 HT lead
2 LT lead terminal
connector
3 Vacuum pipe connection
4 Clamp securing bolts and
spring washers
5 Clamp nut and bolt
6 Spring clip
7 Distributor cap
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