CHRYSLER SERVICE MANUAL
ELECTRICAL SYSTEM—111
35.
SERVICING THE REGULATOR
CONTACT POINTS
a. Inspecting and Cleaning Contacts
Inspect contact points of all three units. The
contact points become silver gray during nor-
mal use. File burned and oxidized points with
a clean contact point file. Do not remove too
much material. Never use sandpaper, emery
cloth or dirty file to clean contact points, as
foreign material may become embedded in con-
tacts and result in arcing or burning.
The filing should be done parallel to length
of armatures. Cross filing will form grooves
and result in contacts sticking and faulty op-
eration. After contacts are clean and smooth,
wipe them with piece of clean, lintless bond
tape.
b.
Adjusting Air Gaps (Regulator)
Place .052 inch wire gauge between armature
and core at contact side of stop pin (Fig. 15).
The contacts should open when armature is
pressed down. Place .048 inch gauge in same
position and press down on armature. The con-
tacts should just open if air gap is properly ad-
justed. Adjust air gap by loosening screw and
lowering or raising stationary contact.
c. Cut-Out Relay Air Gap
Place flat .031 inch gauge between lower side
ARMATURE STOP
STATIONARY CONTACT BRIDGE 51x621
Fig.
17—Adjusting Cut-Out Relay Contact Clearance
of armature and top of relay core as close to
hinge as possible (Fig. 16). With relay arma-
ture against upper stop, .031 inch gauge should
slide in freely, but .034 inch gauge should be
too tight. Adjust air gap by bending upper
stop up to increase air gap, or down to decrease
it.
d. Cut-Out Relay Contact Clearance
Adjust contact clearance by expanding or con-
tracting bridge (Fig. 17). The proper clearance
is .015 inch.
IGNITION SYSTEM
36.
TESTING PRIMARY CIRCUIT RESISTANCE
(FIG. 18)
It is essential to good ignition that all primary
connections be clean and tight. Connect jumper
wire from distributor primary terminal to
ground. This eliminates necessity of closing
contacts. Connect low reading voltmeter (with
scale divisions of y
10
volt) from switch side of
resistor to battery connection at relay or junc-
tion block (Fig. 18).
Turn ignition switch on and observe volt-
meter. A reading in volts that exceeds .2 volt
indicates a loose connection in circuit between
voltmeter leads or poor contact in ignition
switch. Move key off and on while noting volt-
meter. A reading that varies, also indicates poor
contact in switch. Clean and tighten loose con-
nections and/or replace defective switch
SERVICING DISTRIBUTOR
37.
REMOVAL AND INSTALLATION
OF DISTRIBUTOR
a. Removal
Disconnect vacuum tube and primary lead wire.
Lift off distributor cap and remove distributor
hold down lock plate and distributor.
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