|
|
|
|
| BUICK |
| 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
|
1946-49
|
All
|
.025
|
.016
|
21-30
|
16258374
|
"ADV" Flywheel
|
.015H 1
|
.015H 1
|
1950-52
|
All
|
.025
|
.016
|
21-30
|
16258374
|
"ADV" Flywheel
|
.015H 1
|
.015H 1
|
1953
|
Series 40
|
.025
|
.016
|
21-30
|
16258374
|
"ADV" Flywheel
|
.015H
|
.015H
|
All
|
.032
|
.016
|
21-30
|
12784563 2
|
"ADV" Flywheel
|
Zero
|
Zero
|
1954
|
All
|
.032
|
.016
|
21-30
|
12784563 2
|
5°
|
Zero
|
Zero
|
1955
|
All
|
.032
|
.016
|
26-33
|
12784563 2
|
5°
|
Zero
|
Zero
|
1956
|
All
|
.032
|
.016
|
26-33
|
12784563 2
|
5°
|
Zero
|
Zero
|
1957
|
All
|
.032
|
3
|
26-33
|
12784563 2
|
5°
|
Zero
|
Zero
|
1958
|
All
|
.032
|
3
|
30
|
12784563 2
|
4
|
Zero
|
Zero
|
1959
|
364, 401 Std.
|
.032
|
.016 3
|
30
|
12784563 2
|
5°
|
Zero
|
Zero
|
364, 401 Auto
|
.032
|
.016 3
|
30
|
12784563 2
|
12°
|
Zero
|
Zero
|
1960
|
364, 401 Std.
|
.032
|
.016 3
|
30
|
12784563 2
|
5°
|
Zero
|
Zero
|
| 364,
401 Auto |
.032
|
.016 3
|
30
|
12784563 2
|
12°
|
Zero
|
Zero
|
1961-62
|
364, 401
|
.032
|
.016 3
|
30
|
12784563 2
|
12°
|
Zero
|
Zero
|
| V6
198 |
.035
|
.016 3
|
30
|
165432 5
|
5°
|
Zero
|
Zero
|
| V8
215 |
.035
|
.016 3
|
30
|
18436572 6
|
5°
|
Zero
|
Zero
|
1963
|
401, 425 Std.
|
.035
|
.016 3
|
30
|
12784563 2
|
5°
|
Zero
|
Zero
|
| 401,
425 Auto |
.035
|
.016 3
|
30
|
12784563 2
|
12°
|
Zero
|
Zero
|
| V6
198 |
.035
|
.016 3
|
30
|
165432 5
|
5°
|
Zero
|
Zero
|
| V8
215 |
.035
|
.016 3
|
30
|
18436572 6
|
5°
|
Zero
|
Zero
|
1964
|
V6 225
|
.035
|
.016 3
|
30
|
165432 5
|
5°
|
Zero
|
Zero
|
| V8
300 Special |
.035
|
.016 3
|
30
|
18436572 6
|
2.5°
|
Zero
|
Zero
|
| V8
300 Lesabre |
.035
|
.016 3
|
30
|
18436572 6
|
2.5°
|
Zero
|
Zero
|
| V8
401, 425 |
.035
|
.016 3
|
30
|
12784563 2
|
2.5° 7
|
Zero
|
Zero
|
|
1 - With mechanical valve lifters. 2 - Cylinders numbering front to rear: 3 - Turn adjusting screw clockwise until engine
Zero with Hydraulic lifters. Right bank 1357 left bank 2468 begins to misfire, then back 1/2 turn
4 - Std. 5° Auto 12° 5 - Cylinders numbering front to rear: 6 - Cylinders numbering front to rear:
Right bank 246 left bank 135 Right bank 2468 left bank 1357
7 - 12° for V8 425 with 2 carbs./
Auto trans.
|
| |
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