Pueblo chieftain., 1921-06-26
NJ ALBERT l.. CLOUGH
ktNipr MOf1r .Sc.11;cc bureau Rc1iesI az RovieH6

leased. What is the cause and
| remedy?
Answer: We doubt II this. noise
comes from the clutch at all. for the
is no relative motion among clutch
parts--the whole mechanism rotating
az unit. The fact that there is no
noise when the clutch Is released in
dicates that the clutch parts them
selves operate together quietly. Dur
ling engagement the clutch shaft in
the transmission contershaft as well
are In rotation and we think that this
noise comes from these parts. 1t may
be that there Is something wrong with
the adjuetment or condition of the ball
bearing on the clutch shaft or loose
ness in the countershaft bearings.
Are you sure that the lubricant In the
transmission case is right in guam
tity and quality. We should advise
an inspection of the transmission
bearings and gears.
Noisy Clutches
Gasoline vapor will not burn unless
mixed with the right proportion of air
any more than air will burn unless
mixed with the proper proportion OF
gasoline vapor. In fact. the range OF
mixture proportions. which are COM
Just as difficult to start and to run
an engine that has in its cylinders too
little air as though the opposite con-
dition prevailed. When an engine s
cold a great excess of gasoline may be
introduced into its cylinders. without
its starting being prevented. because
only little OF the fuel present, passes
into vapor form. at the prevailing low
temperature. and mixes with the avail
able air-not enough to form a mix
ture too rich to ignite. The greater
part of II escapes in liquid form. In
the case OF a hot engine. however. the
greater part of the fuel present
evaporates. at the high temperature
existing. forms a large quantity of
vapor and overcharges the available
air so greatly that the resulting mix
ture cannot be fired. 1t often hap
pens that the procedures which help
to start an engine when cold. prevent
its ready starting when hot, this be-
ing true OF the excessive use of the
choker, and especially II 1t is applied
when the heated engine ie stopped.
When an engine has been running
properly. is shut down for a few min
utes and then fails to start, the reason
is fully as often too much gasoline as
too little. Among the causes of gaso-
limo flooded cylinders are the follow
ing; Leaving the choker on while
running. OVERLOOKING or the carbuic-
tor. failure OF carburetor auxiliary air
supply to open as 1t should and the
drawing of gasoline direct into the in
tAkeScS from me vacuum tAnh
caused by lcaky float. which fails
to rise and thus allows the tank to
overfill. II flooding occurs from the
last mentioned cause. the filing plug
on top Of the vacuum tank should be
removed and the car run thus until the
| engine becomes short of fuel. when
tho plug should he replaced tempor-
| arify to rcftl the tank-this procedure
being repeated until repairs can be
made. When cylinders are thought to
he gas flooded the spark-plnE~ can be
removed and :he engine cranked over
| br,skly for sometime. which process
will clear out tho eIccss OF fuel
present and viii permit starting to be
effected whom tho plugs are replaced.
Tho signs Of flooding In running
engine arc siuEKiahnass and inability
to epecd up: irregular explosions. n
black. smoky eIhnnet and. oftentimes.
heavy muffler explosions.