GMC T Series 1994 Repair Manual page 617

DISTRIBUTOR
Install or Connect (Figures 2, 3, 4, and 7)
N O T IC E : T h o r o u g h ly c o a t th e b o t t o m o f th e
ig n it io n c o n t r o l m o d u le w ith P /N 1 9 7 4 9 8 4 s ili­
c o n e g r e a s e . F a ilu r e to d o s o c o u ld r e s u l t in
p r e m a t u r e f a ilu r e o f th e m o d u le .
• Lubricate the bottom of the ignition control module
and the module rest pad in the housing with P/N
1974984 silicone grease or an equivalent heat
transfer substance.
1. Ignition control module (14) to the housing (30)
with two screws.
2. Pickup coil (11).
• Fit the tab on the bottom of the coil into the
anchor hole in the housing.
3. Pickup coil wiring connector to the module.
• Make sure the locking tab is in place.
4. Shield (50) onto the coil.
5. Retainer (49) onto the shield.
• Use a new round retainer if the center bushing
in the distributor base has no groove around
the outside (figure 7).
• Use a new square retainer when there is a
groove in the center bushing.
A. Hammer
B. 15 mm (5/8-inch) Socket
C. Round Retainer
D. Square Retainer
E. Distributor Center Bushing
(without groove)
F. Distributor Center Bushing
(with groove)
ASSEMBLY
A. Place the retainer over the center bushing with
the teeth pointing upward.
B. Place a 15-mm (5/8-inch) socket head onto the
edge of the retainer. Keep the socket centered
on the retainer so the teeth are not damaged.
Use a small hammer to tap the retainer evenly
down onto the center bushing. When installing
the square retainer, make sure both teeth are
seated in the groove on the bushing.
• The retainer should hold the shield, pickup
6. Shaft assembly (26) into the housing (30).
7. Tang washer (33), washer (31), and driven gear
(29) onto the bottom of the shaft.
• Align the marks on the driven gear, housing,
and shaft assembly.
8. Roll pin (27) into the gear (figure 4).
• Spin the shaft and make sure the teeth on the
shaft assembly do not touch the pole piece.
9. Rotor (10) onto the shaft.
• Fit the tab in the rotor into the shot on the shaft.
10. Cap (23) to the housing with screws.
F9996
coil, and pole piece firmly.