DETROIT DIESEL 53
Lubrication System 4
Fig.1. Schematic Diagram for 6V-53 Engine Lubrication System
the cylinder block and flows under pressure to the filter
Lubricating Oil Distribution
and oil cooler and returns through a passage in the
block to the lower engine front cover. From a passage
in the cover, the oil flows to the longitudinal main oil
gallery in the block which distributes the oil, under
pressure, to the main bearings. Oil passages branching
off from the main oil gallery direct oil tc the camshaft
end bearings, idler gear and accessory drive gear
bearings, blower, and cylinder heads.
In addition, oil is forced through-an oil passage iii each
camshaft which lubricates the camshaft intermediate
bearings. All of the camshaft bearings incorporate
small slots through which lubricating oil is directed at the
On a 6V engine, oil from the pump enters a passage in
cam follower rollers.
1972 General Motors Corp.
August, 1972
SEC. 4 Page 3
