Buick LeSabre 1965 Service Manual page 615

ELECTRICAL SYSTEMS
IGNITION SWITCH 1 0 - 4 5
Figure 10-49—Installing Breaker
Plate and Retainer
4. Install distributor shaft and
breaker cam assembly in housing.
Install a d v a n c e weights and
springs.
5. Slide driven gear on shaft.
Drive roll pin through gear and
shaft. Be careful not to damage
gear.
6. Place condenser and bracket
over bosses on breaker plate and
secure with screw.
7. Place contact point set over
boss on breaker plate and secure
with two s c r e w s and lock
washers. Apply one drop of light
oil to breaker arm pivot. Then
install condenser and primary
leads.
8. Work a small amount of high
temperature cam and ball bearing
l u b r i c a n t (available through
U.M.S.) into a clean cloth, then
hold cloth against distributor cam
while turning distributor shaft.
CAUTION: Excessive grease may
throw off into contact points when
hot. Petroleum jelly is not suit-
able for temperature reached by
the cam.
9. Make the preliminary contact
point adjustment (par. 10-34, b).
10. Install rotor and secure with
two screws, lock washers, and
plain washers.
NOTE: The square and round lugs
on the bottom of the rotor must
be positioned in the correspond-
ing holes in the weight base plate.
See Figure 10-52.
11. If a reliable distributor tester
is available, check the distributor
to make certain that the centrif-
ugal and vacuum advance mecha-
nisms are operating according to
the specifications given in para-
graph 10-4 (c). NOTE: Mount
distributor in tester with all end-
play of the distributor shaft in
the up position; this is to elimin-
ate any possible drag between the
centrifugal advance cam and
weight base plate.
12. Install new " O "
distributor housing.
ring seal on
13. Insert distributor in engine
block so that rotor is pointing to
mark made on distributor base,
with vacuum advance unit pointing
in exact original direction. Con-
nect vacuum pipe to advance unit.
14. Install distributor clamp and
bolt with lock washer, leaving bolt
just loose enough to permit move-
ment of the distributor with heavy
hand pressure.
15. Connect primary wire to dis-
tributor side of coil. Install dis-
tributor cap.
16. If spark wires were removed,
make certain that they are re-
placed as shown in Figures 10-46
or 10-47. Wires must be pushed
all the way down into the dis-
tributor cap terminals and onto
the spark plugs. Nipples must be
pushed firmly over the terminals
and boots over the spark plugs.
17. Start engine and adjust con-
tact point dwell angel (par. 10-34,
c). Then adjust ignition timing
(par. 10-35, b). NOTE: If engine
was accidentally turned over while
distributor was out, complete ig-
nition timing procedure must be
followed (par. 10-35, a & b).
10-40 IGNITION SWITCH
AND LOCK REPAIRS
a. Ignition Switch Key
If ignition key sticks or feels
rough as it is inserted into the
lock, examine it for burrs and
smooth up with a fine cut file.
Blow finely powered graphite into
lock cylinder, then work key in
and out of cylinder a number of
times to work graphite into tumb-
lers. Do not use oil in lock cyl-
inder as this will cause tumblers
to stick.
The ignition switch key has an
octagonal shaped head and also
operates the door locks. The
round head key operates the glove
box lock and the trunk lock. The
key code number for each key is
stamped in the small knock-out
insert.
b. Lock Cylinder Replacement
To remove lock cylinder, insert
key and turn ignition switch to
the accessory position. Insert a
stiff wire (paper clip) in small
hole in face of cylinder to depress
the pin which locks the cylinder,
turn cylinder counterclockwise
and pull out. To install l o c k
Figure 10-50—Installing Rotor