Dodge MD Series - Cooling System and Electrical Components; Cooling System Maintenance

I.
. fU ll l ENG TH WAT ER J ACKE TS I
- PLU S DI REC fl ON Al COOLING GI VES UNifORM
THE
COOLING
SYSTEM
E GI NE T EMFER 1\ T URE I
Your h'uck in co rporat es im-
portant coo ling advantage,
includin g Full-L cng th \V at er Ja ckets and Dir ec tional \Vat er
C irl'lilation,
Full-Length Water Jack et cool th e cy linu er J10r es throughout
their whole Icngth, thu s pro v idin g an evc n te mp e ratur e over
the enLire leng Lh of th e cy lind er wall", Thi ins ur es uniform
cX l'an ion of tire cylilltler s eve n llll(le r'
ex tr eme hea tat high
,"chicle sp ec (ls, Bec au se th e cylinder re main tru e, full com-
pr e. sion i rc tain ed and th e eons ulIlption of uil i :; gr 'atly re-
duc ed,
TIl' lIIaxilllUlI1 teml) er atur e of tile 01'1 ]' 11 ,'111 . I f
e ngln c wit I ull
leng th wa ter ja cket j a mu ch as 50 degr ee :; low er. In add i tion
to normal oil cooling with full le ngth water ja ckets, all oil
s prayed on th e cy lind er bor es is cooled.
\Vith Dir ecLional Wat er C ir c ulation , or Dir ec tional Coo ling ,
there
is a 1I10r e n e arl y uniform te mp e ratur e throu ghOllt th e
e
ll gine, Yo ur cngine ha s a water dis tributing tub e which run s
the
full leng th of th e cy lind er blo ck and thr ough which th e
pUIIIP force s ('001 water at hi gh ve l oc it y to all part s of th e cy lin-
der block.
36
THE RADIATOR
To k ee p yo ur tru ck' coo lin g y ·tC II1 fun ctio nin g at
full e ffi ciency, th e radiator sho uld be drain ed and
flu . h ed twice a ye ar, Th e b est tim e are in th e fall .,
before adding anti-fr eeze, and in th c . prin g. aft er
th e anti-freeze is re mo ved,
At th ese tim es, protection again tru st JI1 th e coo lin g syste lll
s hould be e ff ecte d b y addin g " Radiator Ru st Re :; istor" to th e
water. Thi pr eve nt : th e acculllulation of s cale and I'll t in th e
ralliator ami cy lind er blo ck. One pint of th e s olution is . uf-
fi cient. " Radiator Ru st Resistor" is o],tainabl e frOIl! yo ur
autlloriz e (l (I<, 'a ler.
At
all tillles, you s hould ob serve th ese tw o ugges tion In
"llIlIlIIer, :ee Lhat water is visible throu gh th e fill er neck wh en
the tnl ck is l eve l an(1 th e engine at nOl"ll1al operating te mp er a-
tur e. Then th ere will IJ e no 10 . s of water ('au ~e d hy ex pan . iO Il
wllell th e water is h e at ed. In winter , when u 'illg anti-fr eez e.
the I 'vel s hould be lh" b elow Iwttolll of ftll cr pip e to avoid
10 s of anti-fr eeze.
Cantiun!
When draillin g tlte radiator in collI weather , be s ur e to drain
the cy lind er hlock also. Open
tlte drain eock at tlte low er cor-
ner of th e radiat or, and also th e
drain coc k on the le ft s id e of
the e ngin e at th e 10we 1' edge of
th e water ja cket, as indi c at ed by
tlte
illu s tration to th e right.
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