3
On all 6 cylinder engines after the above serial
No's. a new intake manifold is used with the flange
angle changed to compensate for the angle at which
the engine is secured and allows the carburetor to set
in a vertical position when mounted. On 6 cylinder
engines with this later type intake manifold and on
all 8 cylinder engines, refill the air cleaner reservoir
to the oil level line with one pint of 50 S.A.E. engine
oil for temperature above 32° F and 20 S.A.E. for
lower temperatures and reinstall air cleaner revers-
ing procedure of removal.
FAST IDLE ADJUSTMENT - PAGE 2-17
Refer to "Fuel System and Exhaust" Sect ion 4,
Page 17, for the new procedure in checking the fast
idle adjustment.
SLOW IDLE ADJUSTMENT - PAGE 2-17
Refer to "Fuel System and Exhaust" Section 4,
Page 17, for the new procedure in checking the slow
idle adjustment.
SECTION 3
ENGINE
LUBRICATION - PAGE 3-8
(6 CYLINDER)
Full pressure lubrication to friction surfaces of the
engine is maintained by a rotor type centrifugal
pump mounted on the right side of the cylinder
block. The pump is driven by a worm gear on the
camshaft. Oil is drawn through the suction side of
the pump by means of a pipe connecting to a float-
ing screen in the oil pan. The oil is then forced up
into the horizontal oil gallery for distribution to the
valve tappets, camshaft bearings, main bearings,
connecting rod bearings, pistons, piston pins and
bushings, timing chain and sprockets and all other
movable parts requiring lubrication, Figure 10.
NOTE: Normal oil pressure is 40 lbs. at 30 M.P.H.
OIL PAN TRAY BAFFLE - PAGE 3-14
(8 CYLINDER)
A sheet metal baffle has been added to the oil pan
tray as shown in Figure 1.
FIGURE 1
The addition of this baffle gives better control
of the movement of the oil in the oil pan t r a y,
raising the level of the oil in the tray for better
lubrication.
This baffle Part No. 302539 became effective in
production on all 8 cylinder engines after March 1,
1949 and can be installed on previous models by
soldering as illustrated in Figure 1.
OIL PAN INSTALLATION - PAGE 3-14
(6 AND 8 CYLINDER)
CAUTION: The cylinder block machining locat-
ing hole at the left rear side of the cylinder block
base is so located that one half of the hole opens
into the crankcase. A cup shaped plug 9/16"
outside diameter is used to close this hole after
machining, Figure 2.
Always check to see that this plug is in position
whenever removing the oil pan.
FIGURE 2
