July 27, 1959
SERVICE BULLETIN SB-727
SUBJECT: STRENGTHENED FLYWHEEL RD - RDS
Pictured is the new strengthened
flywheel and steel forged hub, which
provides the added strength. This
flywheel is now being used on pro-
duction and is being shipped for
service when replacements are required
in the field on earlier production
engines.
With the new steel forged hub it is
possible for hairline cracks to appear
between the puller screw holes. These
cracks may be disregarded as there is
no danger of complete failure.
NOTE: As a means of identification the new flywheel will have a cast letter "Q"
located at the emergency starting rope notch. If hairline cracks appear
in flywheels so marked, do not request replacements, as they are not required.
We have been advised that many dealers are using a type puller which grasps the
outer rim of the flywheel. This type puller should not be used as it places undue
strain on the flywheel at the hub.
A recommended puller - part number 675025 can be purchased from Johnson Motors
@ $4.70 net.
JOHNSON MOTORS
Jack Penland
Jack Penland
Service Department
JP:eb
NOTE: Post the bulletin on your RD index