OLDSMOBILE & F-85
1946-64 Tune-up Specifications
| Year | Engine Car Model | Spark Plug Gap | Point Gap | Dwell Angle | Firing Order | Ignition Timing (BTDC or Mark) | Valve Lash | |
| Intake | Exhaust | |||||||
| 1946-48 | 6 | .040 | .022 | 31-37 | 153624 | TDC
Flywheel |
.008H | .011H |
| 8 | .030 | .016 | 21-30 | 16258374 | Ball
Flywheel |
.008H | .011H | |
| 1949-50 | 6 | .040 | .022 | 31-37 | 153624 | TDC
Flywheel |
.008H | .011H |
| 8 | .030 | .016 | 26-33 | 18736542
1 |
2 |
Zero | Zero | |
| 1951 | All | .030 | .016 | 26-33 | 18736542
1 |
Slot | Zero | Zero |
| 1952-54 | All | .030 | .016 | 26-33 | 18736542
1 |
Slot | Zero | Zero |
| 1955-56 | All | .030 | .016 | 26-33 | 18736542
1 |
4 |
Zero | Zero |
| 1957 | All | .030 | 3 |
30 | 18736542
1 |
4 |
Zero | Zero |
| 1958 | All | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero |
| 1959 | All | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero |
| 1960 | 2 bar. Carb | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero |
| 4 bar. Carb | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
| 1961 | F85
Std. tr.-155 hP |
.040 | 3 |
30 | 18436572
1 |
5° | Zero | Zero |
| F85
Auto tr.-155 hp |
.040 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85
Std. tr.-185 hp |
.040 | 3 |
30 | 18436572
1 |
5° | Zero | Zero | |
| F85
Auto tr.-185 hp |
.040 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85-
215 hp |
.025 | 3 |
30 | 18436572
1 |
10° | Zero | Zero | |
| Olds
2 Bar. carb |
.030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
| Olds
4 Bar. carb |
.030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
| 1962 | F85
155 hp
Std. tran |
.030 | 3 |
30 | 18436572
1 |
5° | Zero | Zero |
| F85,
155 hp
Auto tran |
.030 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85
185 hp
Std. tran |
.030 | 3 |
30 | 18436572
1 |
5 ° | Zero | Zero | |
| F85
185 hp
Auto tran |
.030 | 3 |
30 | 18436572
1 |
7 1/2°° | Zero | Zero | |
| F85-
215 hp |
.030 | 3 |
30 | 18436572
1 |
10° | Zero | Zero | |
| Olds- 260 hp | .030 | 3 |
30 | 18736542
1 |
2 1/2° | Zero | Zero | |
| Olds all others | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
| 1963 | F85
155hp
Std. tran |
.030 | 3 |
30 | 18436572
1 |
5° | Zero | Zero |
| F85
155 hp
Auto tran |
.030 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85
185 hp |
.030 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85
195 hp |
.030 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| F85-
215 hp |
.030 | 3 |
30 | 18436572
1 |
10° | Zero | Zero | |
| Olds- 260 hp | .030 | 3 |
30 | 18736542
1 |
2 1/2° | Zero | Zero | |
| Olds all others | .030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
| 1964 | F85-
V6 225 |
.030 | 3 |
30 | 165432
5 |
5° | Zero | Zero |
| F85-
V8 330 |
.030 | 3 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| Olds- V8 330 | .030 | 4 |
30 | 18436572
1 |
7 1/2° | Zero | Zero | |
| V8-394
Std. tran |
.030 | 3 |
30 | 18736542
1 |
2 1/2° | Zero | Zero | |
| V8-394
Auto tran |
.030 | 3 |
30 | 18736542
1 |
5° | Zero | Zero | |
1 - Cylinder numbering front to rear:
Left 1357
Right 2468
2- Between two steel balls.
3- Turn adjusting screw in until engine begins to misfire, then back screw 1/2 turn
4- Cars with notch, set at leading edge of notch. Cars with three notches, set at center one.
5- Cylinder numbering front to rear:
Left 135
Right 246