Cadillac 1937 LaSalle VVI Information page 172

84
E N G I N E
Cylinder and plunger
are fitted in pairs and
must not be mismated-
Plunger Spring.
Cylinde,
Check Valve.
Valve Lifter Body.
Fig. 2 7 Arrangement of Valves, Valve Litters, and Silencer Parts
Valve Open
Valve Closed
Plunger spring extended,
maintaining zero clearance
Ball check valve open
Oil under pressure
Valve spring presses
against plunger
Oil, forced downward,
closes check valve
Slight leakage between
plunger and cylinder
Fig. 28 Operation of Valve Silencer Mechanism
Plate 33. Valve Mechanism—Series 37-50, 60, 65, 70, 75