Sunbeam ALPINE I SERIES: APLINE II SERIES, Workshop Manual

Page: 342 / 413

2nd re-issue
Page 24
The complete shaft assembly, with centrifugal
timing control and cam foot can now be removed
from the distributor body (see (2) below).
(1)
Contact breaker
To dismantle the assembly further, remove the nut,
insulating piece and connections from the pillar on
which the contact breaker spring is anchored. Slide
out the terminal moulding. Lift off the contact
breaker lever and the insulating washers beneath it.
Remove the screw securing the fixed contact
plate, together with the spring and plain steel
washers, and take off the plate. Withdraw the
single screw securing the capacitor and contact
breaker earthing lead. Dismantle the contact
breaker base assembly by turning the base plate
clockwise and pulling to release it from the moving
contact breaker plate.
(2)
Shaft and action plate
To dismantle the assembly further, take out the
screw inside the cam and remove the cam and cam
foot. The weights and springs of the centrifugal
timing control can now be lifted off the action
plate.
Bearing renewal
The single long bearing bush used in this distributor
can be pressed out of the shank by means of a
shouldered mandrel. If the bearing has been
removed the distributor must be assembled with
a new bush fitted. The bush should be prepared
for fitting by allowing it to stand completely
immersed in engine oil for at least 24 hours. Press
the bearing into the shank, using a shouldered
polished mandrel of the same diameter as the shaft.
Under no circumstances should the bush be
overbored by reaming or any other means, since
this will Impair the porosity and thereby the
effective lubricating quality of the bush.
Reassembly (Refer to Fig. 22)
The following instructions assume that
complete
dismantling has been undertaken.
1. Place the distance collar over the shaft, smear
the shaft with clean engine oil, and fit it into Its
bearing.
FIXED
CONTACT
PLATE
MOVING
CONTACT /
BREAKER
PLATE
CONTACT
BRE���:
PLATE
WSM.124
Section N (Elec. Equip.)
5810
L.T. TERMINAL
CONTACT
BREAKER
LEVER
CAPACITOR.
CAM
CENTRIFUGAL
TIMING
CONTROL
VERNIER
ADJUSTING
NUT
REV. COUNTER DRIVE GEAR
Fi1, 22. Exploded view of distributor
2. Refit the vacuum unit into its housing and
replace the springs, milled adjusting nut and
securing circlip.