Ford T Series User Manual

18
THE F 0 R 0 :II A r\ U A L
Worn connecting rods may be returned, prepai d. to the nearest agen t
or branch house for exchange at a pr i ce of 75 cents each to cover the
cost of r ebabb itting. It is not adv i sab le for any own er or repair
shop ~o atte mpt the rebabbitting of co nn ec ting rods or main bearings,
for Witho ut a special jig in which to form the bearings, satisfactory
r es ults will not be obtained. Th e constant tapping of a l oose con-
necting r od on the crank shaft will eventuaUy produce cryst a llization
of the steel -! ·re sult, broken crank shaft a nd possibly other parts of
the engine damaged.
Crank S lw fr Main Bea rin gs :Answer 7\TO. J 'A
- ho w
aqjusted? 1 V ( Lf
Sh oul d the statio nary bearings in which the cran k shaft r evolves
become wo rn (e videnced by a pounding in the motor) and need
replacing or adjusting, proceed as follows: .
(I) A fter the engine has been tak en out of the car, remove crank case.
transmission cover, cylinder h ead, pi stons, connect ing rods trans·
mission and mag ne to coils. Take off the three babbitted c~ps and
pean th e bearing s urfaces with gasoline. Apply Persian blue or red
IeFtd to th e crank .· haft . bearing surfaces, which will enable you, in
fi t ting th e caps, to determine whe! •• er a perf ec t bearing surfac e is
obt~ned.
(2) Place the rear cap in position and t ighten it up as much as pos sible
without stripping the bolt thread s. When the bearing has been
properly fitted, the <t ank shaft will p er mit moving with one hand. If
th e crank shaft cann.>t be turned with one hand, the contact betw een
the bearing surfaces is evidently too close, and the cap req uires
sh imming up, , one or two brass liners usual ly being sufficient. I n case
theaank shaft moves too easily with one hand, the shims should. be
removed and the steel .;;urface of the cap filed off, permi tt ing it to set
closer.
(3) A fter removing the cap, observe whether th e blue or r ed
"spott ings " indicat e a full bearing the l ength of the cap. If "spot-
tings" do not show a tru e bearing, the babbitt shou ld be scraped a nd
the cap re fitted until th e proper r es ult s are obtained.
~4) Lay the rear cap aside and proce ed to adjust the center bearing
10 the same manner. R epeat the oper at ion with the front bearing,
with the oth er two bearin gs l aid as id e.
(5) When the proper adjus t ment of each bearing has been obtained,
clea n the babbitt surface carefully and place a little lubric ating oil
on th e t> ear!ngs , also on th e crank shaft: th en draw the caps up as
closely as J: '•ss ibl e-- the nec essa ry shims, of course, being ih place .
Do n ot be afra id of gett ing th e cap bolts too tight, as the shim und er
the cap and the oil between the b earing surfaces will prevent th e
metal being drawn into t oo close contact. If oil is not put on th e
bearing surfaces, the babbitt is apt to cut out when the m o tor is
started up b efore the oil in th e crank case can get into the b earing.
In r eplacing the crank case and transmission cover on the motor, it
is advisable to use a new s et of felt gaskets to prevent oil l eaks.
· How is th e A
1
7\T J 'C
Engi ne cooled? nswet 1 V 0 • ..J
The heat generat ed by the const ant e xpl osions in the ngine would
soon overheat and ruin the engine, were it not co led by some
artificial means. Th e Ford engin e is cooled by the
1
circu l ation of
water in jack e ts around the cy lin ders. Th e h ea t is extracted from
the water by its pa ssage through the thi n metal tubing of the radiator
- to which are attached scientifically wo rked out fins, whi ch assist
in the rapid radiation of the heat. The fan, just bac)' of the radiator;
sucks the air around the tubing - through which the air is al so driven
by the forward m ovemen t of the car. The belt sJ¥>uld be inspe~
fn:quentl y and tightened when necessary-not too tight, h owever -
by means of the adjusti ng screw in the fan brac k et. T ake up the
s lack tf U the fan start's to bind when turn ed by hand.
How do es th e A 7\ T 36
W at er circula te ? nswer 1 VO. .
The ' coo l ing . apparatus of the F, or d car is known as the Thermo -
syphon system. It ac ts on the principle that h ot water s ee ks a
higher lev el th an cold water - co nsequently when the water reaches
a certain he at, a pproximat ely 180 degr ees Fahr e nh e it, cin:ulation
comme nces and the water fl ows from th e lo_'fer r ad ia tor outlet pipe
up through the water jack ets, into the upi;kr radi at or water tank,
and4own thr oug h the tub es to the lower tauk, to repeat th e process.
What are th e ca u ses of ! ..tf 7\ r 37
Overheating? fL ..t. nswer '1 v 0 .
(1) Carbonized cylinders; (2) too mugt driving on l ow ' speea; ~
(3) spark ret arded too far; (4} poor ignlfit ' ; (5) not enough or poo~
grade oil; (6) racing motor: (7) clogged uffier; (8) improper carbu
re tor ad j u stme nt; (9) fan n ot wo rking p perly on account of broken
or slipping belt; (10) i mproper circula on of water due to clogged
or jammed radiator tub es, leaky conne ti ons or l ow water. ·
Wh . at s h ould be done when th e
Radiat or ove.r h ea t s? Answer No . 3~
K eep the radiator full. Don't get a! rm ed if it boils occasiona lly -
especia lly in driving through mud a d deep sand or up long hi lls in
~xtremely warm w ea th er . Remem r that the e ngin e develops the
greatest efficien cy when the water is eated nearly to the boiling point.
But if there is p ers i stent overhea 'ng when th e m otor is working
under ordinary conditio n s-find the cause of the troub le and remedy
it. T he chances are that the diffi culty lies in impr ope r driving or .
carboniz ed cylinders. Perhaps tw isting the fan blade§ at a greater
angle to produce more suction may bring desired results. By
r
efere nce to th e pr oper divisio n of this book eac h or'the causes which
contribute to a n overheated radi~J,tor is treated and remedies sugges ted.
No trouble can r es ult from the filling of a heated rad i ator with cold
water-providing the water sys tem is not entirely empty- in which
case the mot or s hould be allowed to cool before the cold water is
introduc ed.
[1 9)

Ford T Series Specifications

General

Brand	Ford
Model	T Series
Category	Trucks
Language	English