Correct adjustment of breaker contact
points and correct ignition timing play such
an important part in the satisfactory operation
of an engine, that it is absolutely necessary
that every mechanic thoroughly understand
the correct procedure.
So that there may be no misunderstanding,
we are again describing these operations.
The gap between the breaker points is set
at .018 inch to .022 inch. The gap should
occasionally be checked to see that the points
are clean and properly adjusted.
If the points are burnt or pitted they should
be dressed down with an oil stone. Do not
use a file.
To adjust the contact points proceed as
Lift off distributor cap, rotor, and body.
Turn engine over slowly with starting crank
until breaker arm rests on one of the lobes of
the cam with the breaker points fully opened.
Loosen lock screw and turn the contact
screw until the gap is at .018 to .022. A
standard thickness gauge is used to obtain
When correct adjustment is obtained,
tighten the lock screw. After tightening the
lock screw, again check the gap to make sure
the adjustment was not altered when the
lock screw was tightened.
Replace distributor body, rotor and cap.