Operating instructions

Page Z2
NOTE:
Disconnect omd plug the vacuum advance
llne from the disfr;butor. If the vehicle
is equipped with an advance-retard sole-
t_o;d, disconnecf the wire at the carburetor
end,
WINDOW
1/8" ALLEN
WRENCH
ADJUSTMENT
SCREW
GM TYPE
PLUG END OF VACUUM LINE
FIGURE 23 FIGURE 24
On engines with non-window distributors, adjust the dweil as follows:
I. Stop the engine and remove €o11 wire from the center tower of distributor
cap. Connect the jumper wire between coll wire and engine ground to
prevent arcing while cranking the engine,
2. Remove the distributor cap and rotor.
3. Connect a remote starter switch to the vehicle or have an assistant
crank the engine for you with the ignition switch.
4. Turn the ignition switch on and with the engine_cranking, observe the
reading on the dwell scale.
5. To adjust dwell, loosen LOCKING screw slightly and adjust point gap by
turning ADJUSTMENT screw (Figure 25) or by inserting a screwdriver in
slotted hole (Figure 26 ) and turning the tool slightly left or right to
obtain the specified point dwell reading. Tighten locking screw and
recheck dwell while cranking engine. Repeat procedure if necessary.
6. Reassemble distributor and recheck dwell reading with engine operating
at specified idle.
Locking
FIGURE 25
..................................... II1[[I III I[111['1[11
Slotted Hole
P - Lock|ng Screw
Breaker Po(nf
Ga_
TYPICAL
INTERNAL
TYPE FIGURE 26
BREAKER
ADJUS TMENTS