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PONTIAC & TEMPEST
1946-64 Tune-up Specifications 
Year
 
Engine or 
Car Model
 
Spark 
Plug Gap
 
Point
Gap
 
Dwell
Angle
 
Firing
Order
 
Ignition Timing 
(BTDC or Mark)
 
Valve Lash
 
Intake
 
Exhaust
 
1946-48
 
6
 
.025
 
.022
 
31-37
 
153624
 
IGN
 
.012H
 .012H 
8
 
.025
 
.016
 
21-30
 
16258374
 
1    Flywheel
 
.012H
 
.012H
 
1949-52
 
6
 
.025
 
.016
 
31-37
 
153624
 
1    Flywheel
 
.012H
 .012H 
8
 
.025
 
.016
 
21-30
 
16258374
 
1
 
.012H
 
.012H
1953 
6
 
.025
 
.016
 
31-37
 
153624
 
2
 
.012H
 .012H 
8
 
.025
 
.016
 
21-30
 
16258374
 
1
 
.012H
 
.012H
 
1954
 
6
 
.025
 
.016
 
38-45
 
153624
 
2
 
.012H
 .012H 
8
 
.025
 
.016
 
21-30
 
16258374
 
1
 
.012H
 
.012H
 
1955
 
All
 
.035
 
.016
 
26-33
 
18436572  4
 
5
 
Zero
 
Zero
 
1956
 
V8 1 Carb.
 
.035
 
.016
 
26-33
 
18436572  4
 
5
 
Zero
 
Zero
 
V8  2 Carbs.
 
.035
 
.016
 
26-33
 
18436572  4
 
10°
 
Zero
 
Zero
 
1957
 
All
 
.035
 
3
 
30
 
18436572  4
 
5
 
Zero
 
Zero
 
1958
 
All
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
1959-60
 
All
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Hydraulic
 
1961
 
4-195
 
.035
 
.016
 
74-76
 
1342
 
6°
 
Hydraulic
 
V8-215  
.032
 
.016
 
28-32
 
18436572 4
 
5°
 
Hydraulic
 
V8-389
 
.035
 
3
 
30
 
18436572 4
 
6°
 
Hydraulic
 
1962
 
4-195 Dist. 1110282
 
.035
 
.016
 
74-76
 
1342
 
6°
 
Zero
 Zero 
4-195 Dist. 1110283
 
.035
 
.016
 
74-76
 
1342
 
6°
 
Zero
 
Zero
 
4-195 Dist. 1110284
 
.035
 
.016
 
31-34
 
1342
 
6°
 
Zero
 
Zero
 
4-195 Dist. 1110285
 
.035
 
.016
 
31-34
 
1342
 
6°
 
Zero
 
Zero
 
V8-215
 
.032
 
.016
 
28-32
 
18436572  4
 
5°
 
Zero
 
Zero
 
V8-389
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
1963
 
4-195
 
.035
 
.016
 
31-34
 
1342
 
6°
 
Zero
 
Zero
 
V8-326
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
V8-389  1 Carb.	
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
V8-389  Tri-Carb.
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 Zero 
V8-421  Tri-carb.
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
1964
 
6-215
 
.035
 
.016
 
31-34
 
153624
 
4°
 
1 Turn 6
 
V8-326
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
V8-389, 421
 
.035
 
3
 
30
 
18436572  4
 
6°
 
Zero
 
Zero
 
1- Early 1949, IGN mark. Late 1949 and 
1950-54, first line to come under pointer
is for standard heads , second line for 
high compression heads, third line is 
TDC.

2- Center of three lines


3-Turn Adjusting screw in, until engine
misfires, then back off screw (ccw) 1/2 turn.

4- Cylinder numbering (front to rear): Left
bank 1-3-5-7  Right bank 2-4-6-8.

5-First line to come under pointer while
cranking engine.