15
FIGURE 16
For 6 cylinder engines use the Valve Guide
Installer Handle part of J-883-A, the J-883-7 Pilot
Block, J-883-8 and J-883-9 Valve Guide Installer
Pilots, Figure 51. Page 3-43 to install the valve
guides.
The installer pilots are fitted with collars to control
the height of the valve guides when installing the
exhaust guide should be 1-3/32" and the intake
guide 1-7/16" from the top of the guide to the top
face of the block, Figure 17.
FIGURE 17
To remove the varnish and carbon deposits found
in valve guide bores use KMO-122 METAL
BRUSH for cleaning the main bore of valve guides.
To facilitate removal of stubborn varnish deposits,
use lacquer thinner and the KMO-122 Metal Brush.
NOTE: Always place clean rags below the valve
guides to absorb any surplus draining of the thinner.
FLYWHEEL MARKING - PAGE 3-44
Flywheel assembly, Part No. 166302, which was
previously specified for the 480-490 series six-cylin-
der engines, has been revised so that the timing
marking which read UDC-1-6 now reads UDC-1,
Figure 18. This assembly with the changed marking
is now being used in production on both six and
eight-cylinder engines replacing Part No. 166303
assembly previously used on eight-cylinder engines.
This change became effective in production on April
21, 1949.
FIGURE 18
VALVE SPRINGS - PAGE 3-44
First paragraph should read: Springs for 6 cylinder
engines should exert not less than 54 lbs. when
compressed to 2-3/16". Reject springs under 54 lbs.
OIL FILTER - PAGE 3-44
When removing the 1/8 inch pipe plugs for making
oil filter connections the use of a 1/4 inch square
socket is well suited for this purpose. Tap the socket
wrench over the square end of the pipe plug to a snug
fit.
