Cadillac 54-6219 1954 Shop Manual page 205

11-2
ENGINE ELECTRICAL
oIl Primary
C
irai £ to a void burning the breaker
points. This rc.slstor reduces the voltage to the
anti breaker points
01 aPllroxinlnely
9
vt>Ls
on des ito r mel rol:ai ag conditions In order to instl re
adequare. ignition vohego during the engine crenizittg
period, the reals Ear is shet:ted t].iuagh the starter
solenoid circuiL, andfullevailahlobatieryvnltageie
supplied to the ignition coil during this period. Fig.
li-i.
Thu
in the
igniLe
dintrihutor direers r:'!L, high voltage current
proper
SIOQUC!ICC
Ta the spark ?logs which
the foe
-
-
air ml xttJ re ii the cylinders
The distributor, n1unrfdi?: Fte rear nfthe engine,
is fully automatic
it: opera tiott and s driven
by a
steel drive, gear which s ti river, by the camshaft
drive gear, lUg, 11-2. An outside uiic-r is prnvidod
for lubrication Ill LV 01
i
of tite dna tr ihutor
die tr ihu Lor Ca rotates
in a Ce unte ruIn ck wise
direction when viosed from above., and Lhe firing
order
is
1-S-4-.-ñ-5-7-l ru elimiistc' the need
for radio noise sa?pressars on the spark plugs,
the distributor rotor haa a burt-in suppressor.
A single cotita
Ut pn
mt
set is used "it Ii an oight
lube breaker r a
TV
on he dcc tn ho tt_
iiu
rL
.
The
circoit h,reaker plate bearing cc a hush big located
at the ccnter of the plaiT!. Spark advs:tee is n-
trailed by c ititrifuge I e git:s ar.d by Va CU Oni from
the carburetor Lhrntr Ic nod v. eroto re, igit it ion
timing is controlled by hot]: engine .speed and
engine load.
'r'iming
marks arc loeu:cdon the narmot,lc,halan-
cc r at the fran L of the c,r-aak shaft. ''hr,a C nit
lettered 'A'' and 'C'', are located tin the hal,tncer
so that the piston in numher cUte cylknder is at top
deed CenLer when the *C" mark is in tine witn tIle
pointer on the engine front covet-, *fl ''A'' :mne wi:'l
then he five crankshafr degrees ahead of the ''C'
tine.
1954 generator, located on the front of the
right exhausL manifold, tots an ctutnutof:In amperes
at apptoxlt'ratety 30 miles por hoUr,' flte gcnevo.ttr
regulator
is made :11
or
three seTlardTc: Units: a
cLttaut relay, a cur renT regulator, and a vo;Lage
regutaLor sit or which aro !TTeJrtcd innnecnmpletc
assembly on the front Ut' Ll:,e right radiator support
harte.
'tile Cut-out retsy tttakes ti-,e conttectit:n between
the ge]teraur and harTery vnen the generator voltage
hecnmea stt!fictent to tisse
the Contact points.
When
getleretur
voltage becomes 1ees Lhnn hattety
vattage Isiow speeds or er idle, opposing magnetic
fields are set up in the cUr-out rejay aitidinga,
caud lag Lhe paints open.
When getueraLor output reaches tIto value r
which the voltage regulator Ic set, the magnetic
field produced by the voltage regttiittor windins
opens the contact points, thus directing Lhe genera
-
to r field current through a rca Is ru ace to ground.
As
soon
as the points
open,
the
voltage
regulator
magnetic
field i.s
reducad
enough ala 110w the points
to close again by
spring
rensioti
.
This cycle repeats
Itself from
dci
to 70 timea p.2 r .;eeat :0,
Slotting Mob,
Fig. I I-t
Statling Cittuii
a
Ca',''tttil F
Gea
N
Oitt
ri':>titar
Oil Peep one
-
p:t.tibs,at
D,cce crot
Got,n'
Otive 5h0E'
a
oil
Peep
01 Pomp
Fig. t '2 Diiltibotot and Oil Pump Driv
Methankm