December 6, 1962
Bulletin No. 929
SUBJECT: Securing distributor drive pulley screws to flywheel with
'LOCTITE' - All model V4A (Alternator) engines.
We are presently recommending that a drop of
'LOCTITE - GRADE D' be applied to the three
screws used to secure the distributor drive
pulley to V4A (Alternator) flywheels. This is
the same grade of LOCTITE currently recommended
for gear assembly set screws in the ELECTRAMATIC\ gearcase.
An application of LOCTITE hardens into a tough
plastic bond by chemical action when confined
between closely fitting metal parts - in this
instance the screw threads and flywheel. The
intended purpose of LOCTITE, as is being used
in Figure 1, is to reduce the possibility of
these screws becoming loose. More important -
its proper use on these screws that persist
in loosening will usually remedy the problem.
As a further guard against looseness - these
three screws must be torqued 60 - 84 inch
pounds as is shown in figure 2.
Bulletin #SB-911 contains instructions for the
proper use of LOCTITE - GRADE D and the name
of the firm through which LOCTITE has been
made available for Johnson Dealers.
FIGURE 1
FIGURE 2
JOHNSON MOTORS
Robert Compton
Service Department
RC:eb
NOTE: Post on your V-75 index.
