GMC 1976 ZEO 6083 Maintenance Manual page 439

6 . Connect harness connector to distributor cap
Figure 63-Ignition Coil (Typical)
and ground cable to automotive battery .
HIGH ENERGY IGNITION SYSTEM SPECIFICATIONS
(*)
Set with Vacuum in Retard Position .
IGNITION TIMING
Idle Speed (RPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 100 1 100
Distributor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8°BDTC 8°BDTC
* With Distributor Vacuum Ports on Carburetor Plugged .
ENGINE ELECTRICAL 6Y- 5 9
Figure 64-Ignition Coil and Seal (Typical)
Federal California
DISTRIBUTOR
Make .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Delco-Remy Delco-Remy
Model No . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1112893 1112945
Rotation (Viewed at Rotor) . . . . . . . . . . . . . . . . . . Clockwise
Clockwise
Dwell . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . Electronic
Electronic
Centrifugal Advance
Start Distributor (Degrees) . . . . . . . . . . . . . . 0
0
RPM . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
900
900
Intermediate Distributor
(Degrees) . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9
RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 2000
Maximum Advance Degrees . . . . . . . . . . 16 16
RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3400 3400
Firing Order . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-4-3-6-5-7-2 1-8-4-3-6-5-7-2
DISTRIBUTOR VACUUM CONTROL
Model No. . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1973523
1973560
Inches of Mercuty to
Start Advance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
14-15
Inches of Mercury for
Maximum Advance . . . . . . . . . . . . . . . . . . . . 19-20
18-19
Maximum Advance
(Distributor Degrees)" 12°
5°
*Plus or Minus one Degree .