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301-350-400 V 8 ENGINE V I CODES Y-P-Z
6A5-3
Fig. 6A5-04 Cylinder Head
-
Typical
Piston pins are offset toward thrust side (right-hand side)
to provide a gradual change in thrust pressure against the
cylinder wall as the piston travels its path (Fig. 6A5-05). Pins
are hardened steel and have a floating fit in the pistons. They
are retained in the connecting rods by a press fit.
OCKER ARM
VALVE
VALVE
SPRING
1935
Fig. 6A5-06 Valve Train
Dual valve springs are used on V-350 and V-400. A
single valve spring with internal damper is used on the V-301.
HYDRAULIC VALVE LIFTERS
Hydraulic lifters are used to keep all parts of the valve
train in constant contact. Each lifter is an automatic adjuster
maintaining zero lash under all conditions.
CENTERLINE O F PISTON PIN
CENTERLINE O F PISTON PIN
R1GH.T BANK
LEFT BANK
1904
Fig. 6A5-05 Connecting Rod and Piston Assembly
-
Typical
VALVE TRAIN
A very simple ball pivot-type valve train is used (Fig.
FUEL DISTRIBUTION SYSTEM
6A5-06). Motion is transmitted from the camshaft through
The intake manifolds, are cast in iron and contain
the hydraulic lifter and push
the
arm. The
passages for coolant, exhaust crossover and exhaust gas
rocker arm pivots on its ball and transmits the camshaft
as well as air fuel mixture. ~h~ 301 manifold
motion to the valve. The rocker arm ball is retained by a nut
is of a single level design. ~h~ 350 and 400 manifolds are a
which locks against a chamfer on the stud.
split level design with individual runners for each cylinder.
External shields are used on both intake and exhaust
(Figs. 6A5-07 and 6A5-08)
valve springs to reduce the amount of oil splashed against
stems. Valve stem seals are used on exhaust as well as intake
valves to prevent excessive oil from entering the valve guides.
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