The Richmond palladium and sun-telegram. [volume] (Richmond, Ind.) 1907-1939, 1919-07-19

SO Intricate this crank pin or con.
Meeting rod bearing. after which 1t
will flow out from the sides OF the
bearing in a fat stream. and then be-
cause of the revolution Of the crank
be thrown out much the same as 1t is
in the splash system. Thus some Oil
will get on to the pistons and cylin-
ders. some will gather on the under
side OF the piston head and then drip
into a hole on top Of the connecting
rod, and SO lubricate the wrist pin,
while the cam shaft will be covered
with oil.
There are many variations from the
method used to lubricate the parts
mentioned in the latter part OF the
above paragraphs. Thus there Is the
full force system. In this system.
the oil instead Of coming out from the
sides OF the connecting rod bearings,
Is forced up through a small pipe
placed on the sides OF the connecting
rods, to the wrist pin. The wrist pin
IS hollow, and the oil, after lubricating
will work through hole into the wrist
pin and then run out to the sides and
so lubricate the piston and cylinder
A separate pipe will be run to the cam
shaft bearings and the half-time gears.
Many cars have combination OF
the force and splash systems; the
splash throwing the oil ON all parts
but the main bearing which have the
oil fed to them by the force system.
When the force system is used. a
pressure gauge, which will indicate
the action of the pump Is usually
placed on the instrument board or the
dash.
The Pump Over System.
The Pump Over System, differs
from the force system only in that the
pipes carrying the oil to the main bear
ings, the oil instead pouring into a
large hole over the bearing. AS a rule
this system is used in combination
with a splash system. the splash get
ting the oil on to the connecting rod
bearing. the wrist pin, piston and cyl
Under. and cam shaft, while the main
bearings are taken care OF by the pour.
ing over oil.
When overhauling a car mechanics
should do nothing outside Of cleaning
to the oiling system. There are. how
ever. a few points which must be re-
membered. when tightening bearings
In the last lesson you will remember
that l mentioned the fact that the oil
could not get into the bearing II the
pressure were very great. One can by
tightening the bearings too much, get
them so that the oil cannot enter, and
this Is very often done by auto me
chanics, with the result that the bear
ings soon burn out You should be
able to revolve the crank-shaft by
hand, and to move the connecting rods
back and forth without much effort
The bearings should, however. III
Snug"
Unless "oil grooves" as shown II
Fig. 2, be cut in the bearing. the
oil will only get on the bearing in {
line with the the thickness of the
oil hole. The grooves are therefore
cut in order to spread the oil the
entire length OF the bearing. Often II
worn bearing, these grooves will
have worn away. and they must there
fore be recut. This can be done with
n fine cape chisel or the point of ;
scraping tool.
Care Of the oiiing System.
OF course the first care Of the oilinl
system is to see that there is the prop
or amount of oil in the crank case
OF all the things you must do to taxi
care of your car, hero is one of which
you dare not be negligent. A burne,
out bearing will mean that the entir
engine must De QlSTldntleQ anu IL i
safe to say that this will mean at leas
weeks work for good mechani
and some Of his helpers.
You must keep an eye on your OF
gauge and sight glass on the dash
so as to be sure that pump is work.n
properly. Many bearing has burne
out because Of failure of the oil
pump. AS rule when the bearing
do not get oil. they will first bin
and so put great load on the er
CINE. When your engine labors o
the level, as though 1t were on
steep grade; and especially II it get
hot and knocks. look to your oilin
, system, as this Is sign OF lack g
fabrication.
would advise all owners to fin
out what grades and brands Of o.
work best with their engine, and the
buy this oil in sealed. labeled can.