1938 Cadillac V16 - GM Heritage Center

LUBRICATION
Engine
Lubrication
SYSTEM
Full pressure lubrication provides oil positively to
every moving part of the engine, including wrist pins.
Oil is in sufficient quantity to be of material assistance
in cooling bearings and prolonging their life. Oil travels
through smooth drilled passages in the crankcase
eliminating the conventional oil lines which might become
broken. The only piping in the entire engine is
to the hydraulic valve silencers and to the oil pressure
gauge on the instrument panel.
A large gear type pump is located at the rear of the
engine and to the left of the rear main bearing. Oil is
taken into the pump through a screened float intake
which is shaped like an inverted cup open at the
bottom. This intake floats on the surface and draws
only the clean oil. As the oil level rises and falls, the
float moves up and down with it. The opening is so
large that even though the oil is thick and cold it is
drawn into the pump.
A regulator built into the body of the pump maintains
correct pressure. From the pump, oil is delivered first
to the three main bearings and the three camshaft
bearings. From the rear camshaft bearing, oil continues
upward to the bearing supporting the distributor
and oil pump drive shaft. An oil passage from the front
camshaft bearing likewise carries oil to the timing
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