Electrics Section T
4
•
.2
F
ig
ure
4 Ignition timing marks
1 Timing pointer
2 TDC mark
3 1
0° BTDC mark
Distributor specification
Type
Dri
ve
Rotation
Firing order
Ignition advance
Static advance
Breaker arm spring tension
Co
ndenser capaci
ty
Contact breaker point gap
D
we
ll
angle
11
17
finger pressure
to
the rotor arm, turn distributor
body back until the bulb just
li
ghts.
5 Retighten distributor clamp bolt.
6
Check the setting
by
rotating the
4
crankshaft
two
revolutions clockwise until the
bulb
again lights observing the relative positions
of
the pointers. The TDC/1 0° BTDC pulley
mark must be aligned
with
the pointer on the
timing cover.
7 Switch
off
ignition, disconnect bulb and
refit
all parts.
Method
2-
Using
a
timing
light
1 Connect the leads
of
the timing light in
accordance
with
the manufacturers instructions.
2 Check that the TDC/1 0° BTDC mark on
the
pulley is visible and mark
with
chalk or
paint.
3 Aim the timing
light
at the upper pointer,
on the timing cover.
Check that the TDC/ 1 0°
BTDC pulley
mark is aligned
with
the timing
cover pointer.
If the pulley mark is to the left
of
the timing
point the engine is too advanced.
Slacken
distributor clamping
bolt
and turn distributor
b
ody
clockwise sligt'ltly
to
retard the i
gnitio
n.
Should the mark be above the correct timing
mark the distributor
body
should be turned
anti-clockwise
to
slightly advance the ignition.
4 Securely tighten the distributor clamp bolt.
Single pair contact breaker point
Dog gear from camshaft
Ant
i
-c
lockwise
1, 3, 4, 2
Centrifugal
i oo BTDC (30
IZE
carburettor)
TDC
(30
IZ carburettor)
51
0-680g
(18-24oz)
0·2
0·396mm
(0·0
15i
n)
60
°±
3°
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