1938 LaSalle Production - GM Heritage Center

with the previously mentioned main bearing supply
passages. The oil pump driveshaft bearing, the two
distributor driveshafts and their eccentrics for driving
the two fuel pumps are positively lubricated by additional
passages connecting with the main bearing supplies.
The timing chain and sprocket are lubricated by
oil which has passed through the front camshaft bearing;
oil from the front camshaft bearing collects in a cavity
within the camshaft sprocket from which centrifugal
force throws it through a number of radially drilled
holes, lubricating the chain.
From the main oil header in the side of the crankcase
a pipe leads the oil to the oil filter, thence to two
longitudinal headers on either side of the camshaft. Oil
from each of these headers passes to the hydraulic valve
silencers, lubricating them and providing the pressure
necessary for the automatic valve lash adjusting action.
The oil filler is in the center of the front valve
chamber cover just behind the generator, and thus is
accessible from either side of the engine. A float oil
level indicator in the rear of the V gives a continuous
reading of the oil quantity. The oil pan capacity is
eleven quarts.
Crankcase Ventilation
The Sixteen employs an engine suction type of crankcase
ventilation system which has proved itself to be the
most efficient ventilating system yet designed.
There is a filter-protectedair inlet through the oil
filler cap in the center of the front valve chamber cover.
This inlet pipe passes downward through the valve
chamber and connects with the crankcase. The pipe is
sealed at the crankcase so that all air passes into the
crankcase. *
Two large pipes connect each of the two air cleaners
with the front and rear valve chambers respectively. A
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REVISED 12-15-37