CHRYSLER SERVICE MANUAL
ELECTRICAL SYSTEM—25
and remove washers. Check thickness of re-
moved washers and substitute thinner washer
if specified advance requires more than required
vacuum. Replace with thicker washer if vacuum
required to move plate is less than specified.
In some cases it may be necessary to replace
spring and then, adjust to Specifications by
means of various combinations of washers. The
right combination of washers are installed
when distributor plate is rotated to its full posi-
tion with specified vacuum applied.
41.
INSTALLING AND ALIGNING
CONTACTS (FIG. 20)
Remove old contacts and install new set. Ad-
just spring tension 17 to 20 ounces.
Align contacts to provide center contact by
bending stationary contact only. Grip bracket
next to contact and bend it away from breaker
arm and then, bend it back to vertical. A new
stationary contact is always lower than arm.
It may be necessary to repeat bending process
several times to provide perfect alignment that
is absolutely necessary for efficient ignition and
good contact life. It may be necessary to twist
stationary contact to obtain alignment. Never
bend movable arm. Following alignment of
contacts; readjust clearance .015 to .018 inch.
42.
ADIUSTING CONTACT POINT CLEARANCE
Measure clearance with feeler gauge, dial in-
dicator or with a dwell meter .015 to .018 inch.
New contacts should always be adjusted to .018
inch.
This will allow rubbing block to wear into
cam contour and still provides specified clear-
ance when shaped.
Where dwell meter is used to check clearance
it is essential to adjust clearance with feeler
gauge or .dial indicator. A dwell reading that
varies from specified clearance indicates that
one or more of following conditions are present
and must be eliminated. (1) Worn rubbing
block. (2) Rubbing block not square with cam.
(3) Badly worn cam (old distributor). (4)
Worn distributor bushings. (5) Movable con-
tact arm that has been bent. On dual breaker
arm distributors clearance should be same for
both sets of contacts.
43.
DISASSEMBLY OF DISTRIBUTOR
(FIGS. 21 AND 22)
Remove vacuum chamber retaining screws,
<:AP ASSEMBLY
COUNTERWEIGHTS
56x70A
Fig.
22-Dual Point LC-3, LY-1 Distributor
(Disassembled)
vacuum lever arm spring clip retainer, washer
and felt Remove vacuum unit and distributor
cap clamp springs. On LC-3 and LY-1 loosen
primary terminal post nut and remove primary
lead. LC1-2—Push in rubber grommet and re-
move primary lead. Lift breaker plate assem-
bly from distributor.
DRIVER TOOL
52x281
Fig.
23—Removing Drive Shaft Bushing
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