46 TUNE-UP AND PERFORMANCE MAINTENANCE
INSPECTION OF DISTRIBUTOR CAP
TOWERS
RO
TOR TIP
CORROD
ED.
UOWING OUT INSIDE OF DISTRIBUTOR
CAP ft INSPECTION OF INSERT
________ TERMINALS ___________
CLEANING 1 INSPECTION OF
INSIDE OF DISTRIBUTOR C AP
REPLACING DISTRIBUTOR
CAP _______
INSPECTION OF CAIBON I
aOTOa BUTTON I
Distributor cap and rotor checkpoints
ADJUSTING \ V
SCREW
^
Adjusting point gap (dwell angle) with
1
/e in. alien
wrench
ified dwell angle is obtained on the dwell me-
ter.
HEI SYSTEM TACHOMETER HOOKUP
Connect one tach lead to the "TACH" ter-
minal on the side of the distributor and the
other to ground. Some tachometers must be
connected to the "TACH" terminal and the
battery positive terminal. Not all ta-
chometers will operate correctly with the HEI
system. Check with the manufacturer if there
is any doubt.
CAUTION:
The "TACH" terminal should
never be connected to ground.
get the car started but a finer adjustment
should be made. A dwell meter is needed to
check the adjustment.
NOTE:
The ignition timing must be checked
and adjusted any time the point set is re-
placed or the dwell is changed. When the
dwell is increased, the ignition timing de-
creases, and vice-versa.
1. Run the engine to normal operating
temperatures and then let it idle.
2. Raise the adjusting window on the dis
tributor cap and insert a
Vs
in. alien wrench
into the adjusting screw.
3. Turn the adjusting screw until the spec-
Hook up one tach lead to the tachometer termi-
nal on the HEI system
CLEANING & INSPECTION OF I
OUTSIDE OF DISTRIBUTOR CAP
INSUFFICIENT
ROTOR CONTACT
SPRING TENSION
ROTOR INSPECTION
CLEANING IGNITION
______ CPU _______
I
WINDOW
"HEX" TYPE
WRENCH
IGNITION WIRE
(BATTERY FEED)
TERMINAL
LATCH
(4)
'CONNECTOR
CONNECT TACHOMETER Ti
THIS TERMINAL
