Driven
Gear
' w i / Pump
Drive
Shaft
^Rear Main
Bearing Cap
I
Passage to Chains
-
•••••
K J ^ " ^ F r o m Main Bearing
Fig. 42
Sectional View of Oil Pressure Regulator
Engine Oiling System
Series 37-90
Shown, Typical of
37-85
Fig. 4 I
Sectional View of Oil Pump Drive
Pump Gears
Oil Pump
Fig. 43
Bottom View of O i l Pump with Cover Removed
Assembly Marks
§
a
z
P l a t e 38. E n g i n e O i l i n g System—Series 37-85 a n d 90