BUICK
1965-75 Tune-up Specifications
| Year | Engine Car Model | Spark Plug Type
(AC)
- Gap |
Point Gap | Dwell Angle | Firing Order | Ignition Timing (BTDC or Mark) |
Hot Idle | |
| Std. Tran | Auto Tran
2 |
|||||||
| 1965 | V6-225 | 44S -.035 | .016
5 |
30 | 165432 | 5° | 550
4 |
550D
4 |
| V8-300 | 10
-.035 |
.016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| V8-401,425 | 44S -.035 | .016
5 |
30 | 12784563 | 2.5°
6 |
500
4 |
500D
4 |
|
| 1966 | V6-225 | 44S -.035 | .016
5 |
30 | 165432 | 5° | 550
4 |
550D
4 |
| V8-300,340
2 Bar. Carb |
45S -.035 | .016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| V8-340
4 Bar. Carb |
44S -.035 | .016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| V8-401,425 | 44S -.035 | .016
5 |
30 | 12784563 | 2.5°
6 |
500
4 |
500D
4 |
|
| 1967 | 6-225
Except CA. |
44S -.035 | .016
5 |
30 | 165432 | 5° | 550
4 |
550D
4 |
| 6-225
CA 7 |
44S -.035 | .016
5 |
30 | 165432 | 5° | 650
4 |
600D
4 |
|
| V8-300
Except CA |
10
-.035 |
.016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| V8-300
CA 7 |
10
-.035 |
.016
5 |
30 | 18436572 | 2.5° | 650
4 |
600D
4 |
|
| 8-340
Except CA |
10
-.035 |
.016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| 8-340
CA 7 |
10
-.035 |
.016
5 |
30 | 18436572 | 2.5° | 650
4 |
600D
4 |
|
| 8-400
Except CA |
44TS-.035 | .016
5 |
30 | 18436572 | 2.5° | 500
4 |
500D
4 |
|
| 8-400
CA 7 |
44TS-.035 | .016
5 |
30 | 18436572 | 2.5° | 600
4 |
550D
4 |
|
| 8-430
Except CA |
44TS-.035 | .016
5 |
30 | 18436572 | 2.5° | 550
4 |
550D
4 |
|
| 8-430
CA 7 |
44TS-.035 | .016
5 |
30 | 18436572 | 2.5° | 600
4 |
550D
4 |
|
| 1968 | 6-250
8 Std. tran |
46N -.030 | .019 | 32 | 153624 | TDC
Damper |
700
4 |
N/A |
| 6-250
8 Auto tran |
46N -.030 | .019 | 32 | 153624 | 4°
Damper |
N/A |
600D
4 |
|
| V8-350 | 45TS-.030 | .016 | 30 | 18436572 | TDC | 700
4 |
550D
4 |
|
| V8-400 | 44TS-.030 | .016 | 30 | 18436572 | TDC | 700
4 |
600D
4 |
|
| V8-430 | 44TS-.030 | .016 | 30 | 18436572 | TDC | N/A |
550D
4 |
|
| 1969 | 6-250
8 Std. tran |
R46N-.035 | .019 | 32 | 153624 | TDC
Damper |
700 | N/A |
| 6-250
8 Auto tran |
R46N-.035 | .019 | 32 | 153624 | 4°
Damper |
N/A |
500D
4 |
|
| V8-350 | R45TS-.030 | .016 | 30 | 18436572 | TDC
9 |
700 | 600D | |
| V8-400
Std. tran |
R44TS-.030 | .016 | 30 | 18436572 | 2.5°
ATDC |
700 | N/A |
|
| V8-400
Auto tran |
R44TS-.030 | .016 | 30 | 18436572 | TDC | N/A |
600D | |
| V8-400
G.S. Stage I |
R44TS-.030 | .016 | 30 | 18436572 | 10° | 700 | 600D | |
| V8-430 | R44TS-.030 | .016 | 30 | 18436572 | TDC | N/A |
550D | |
| 1970 | 6-250
8 |
R46N-.035 | .019 | 32 | 153624 | 12 |
700 | 550D |
| V8-350 | R45TS-.030 | .016 | 30 | 18436572 | 6° | 700 | 600D | |
| V8-455 | R44TS-.030 | .016 | 30 | 18436572 | 6° | 700 | 600D | |
| 1971 | 6-250
8 |
R46TS-.035 | .019 | 32 | 153624 | 4° | 550 | 500D |
| V8-350
Std. tran |
R45TS-.030 | .016 | 30 | 18436572 | 6° | 800 | N/A |
|
| V8-350
Auto tran |
R45TS-.030 | .016 | 30 | 18436572 | 11 |
N/A |
600D | |
| V8-455
Std. tran |
R44TS-.030 | .016 | 30 | 18436572 | 6° | 700 | N/A |
|
| V8-455
Auto tran |
R44TS-.030 | .016 | 30 | 18436572 | 4° | N/A |
600D | |
| V8-455
Stage I |
R44TS-.030 | .016 | 30 | 18436572 | 10° | 700 | 600D | |
| 1972 | V8-350 | R45TS-.040 | .016 | 30 | 18436572 | 4° | 800 | 650D |
| V8-455 | R45TS-.040 | .016 | 30 | 18436572 | 4° | 900 | 650D | |
| V8-455
Stage I |
R45TS-.040 | .016 | 30 | 18436572 | 13 |
900 | 650D | |
| 1973 | 6-250
8 |
R46T-.035 | .019 | 31-34 | 153624 | 6° | 700 | 600D |
| V8-350 | R45TS-.040 | .016 | 30 | 18436572 | 4° | 800 | 650D | |
| V8-455 | R45TS-.040 | .016 | 30 | 18436572 | 4° | 900 | 650D | |
| V8-455
Stage I |
R45TS-.040 | .016 | 30 | 18436572 | 10° | 900 | 650D | |
| 1974 | 6-250
8 |
R46T-.035 | .019 | 31-34 | 153624 | 3 |
950 | 600D |
| V8-350 | R45TS-.040 | .016 | 29-31 | 18436572 | 4° | N/A |
650D | |
| V8-455 | R45TS-.040 | .016 | 29-31 | 18436572 | 14 |
N/A |
650D | |
| 1975 | 6-250
8 |
R46TX-.060 | - | - | - | 10° | 800 | 600D |
| V6-231 | R44SX-.060 | - | - | 165432 | 12° | 800 | 700D | |
| V8-260
15 |
R46SX-.080 | - | - | - | 16° | N/A |
600D | |
| V8-350 | R45TSX-.060 | - | - | - | 12° | N/A |
600D | |
| V8-400
2b Carb 16 |
R46TSX-.060 | - | - | - | 16° | N/A |
650D | |
| V8-400
4b Carb 16 |
R45TSX-.060 | - | - | - | 16° | N/A |
650D | |
| V8-455 | R45TSX-.060 | - | - | - | 12° | N/A |
600D | |
1 - BTDC - Before top dead center
2 - D- Drive N- neutral
3 - Manual trans.- 8° BTDC Auto trans.- 6° BTDC
4 - A/C turned to full on position
5 - Turn adjusting screw in Clockwise until engine misfires, then turn
6 - 12° BTDC for V8-425 with two carbs and auto trans.
7- Air Injector reactor (A.I.R)
8- SEE Chevrolet for service procedure
9- 5° BTDC for Lesabre
10- 2 Barrel 45S, 4 Barrel 44S
11- 4 barrel carbs and all Lesabres 4°, all other 10°
12- Std.tran TDC Auto tran4°
13- Manual tran 8° Auto 10 °
14-Exc. Intermediate model Stage I eng 4° BTDC, Intermediate model Stage I 10 °
15-SEE Oldsmobile for service procedure
16- SEE Pontiac for service procedure