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CHAPTER II
DESCRIPTION, CARE AND MAINTENANCE
ENGINE
Description. The Chevrolet valve-in-head truck engines are
the prime factor in Chevrolet's outstanding performance and
economy. They are designed to give long trouble-free life.
Chevrolet's full-pressure lubrication system provides the cor-
rect amount of lubrication to all moving parts.
Full stroke length water jackets, surrounding all cylinders,
provide uniform cooling and prevent cylinder distortion which
would cause undue wear and poor oil economy. The water
passages in the cylinder block and cylinder head properly di-
rect the flow of water to provide uniform cooling of the engine.
Care. The engine oil level should be checked each time fuel
is purchased and oil added when necessary. (See Lubrication
Section.) The engine should be inspected occasionally for oil
and water leaks and the necessary repairs made. Keep the
engine clean externally.
Valve Tappet Adjustment. Valve tappet adjustment on 6-
cylinder engines should be checked when the engine is thor-
oughly warmed up, preferably when the truck comes in from
a run or after the engine has been run at a fast idle for
30
minutes.
Check the clearance between the rocker
arms
and the
valve stems with a feeler gauge (fig. 32). The valve clearances
should be as follows:
Model
1f2,%
and
Intake.
Exhaust
1 Ton
....
006 ....... 016
~
I
I
2 Ton.
.
.
.006. . . .
..
.020
The
V -8
engines have
hydraulic lifters and no ad-
justment is required.
• 25 •
fig. 32-Vatve Tappe' Adjusfmen'-
6 Cyt.
Engine
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