MERCURY
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 | All | .030 | .015 | 36 | 15486372
1 |
2 |
.012C | .014C |
| 1949-50 | All | .030 | .015 | 28 | 15486372
1 |
Groove
Pulley |
.012C | .014C |
| 1951 | All | .030 | .015 | 28 | 15486372
1 |
Groove
Pulley |
.014C | .018C |
| 1952-53 | All | .030 | .015 | 28 | 15486372
1 |
Groove
Pulley |
.014C | .018C |
| 1954 | All | .030 | .015 | 28 | 15486372
1 |
3° | .018C | .018C |
| 1955-56 | All | .034 | .015 | 26-28 | 15486372
1 |
3 |
.019H | .019H |
| 1957 | V8-312 | .034 | .015 | 26-28 | 15486372
1 |
6° | .019H | .019H |
| V8-368 | .034 | .015 | 26-28 | 15486372
1 |
8° | Zero | Zero | |
| 1958 | V8-312 | .034 | .015 | 26-28 | 15486372
1 |
3 |
.019H | .019H |
| V8-383,430 | .034 | .015 | 26-28 | 15426378
1 |
4 |
.078 -.218
5 |
||
| 1959-60 | V8-312 | .034 | .017 | 26-31 | 15486372
1 |
3 |
.019H | .019H |
| V8-383,430 | .034 | .017 | 26-31 | 15426378
1 |
8° | .078 -.218
5 |
||
| 1961 | 6 | .034 | .025 | 37-42 | 153624 | 6 |
.019H | .019H |
| V8-292 | .034 | .017 | 26-31 | 15486372
1 |
7 |
.019H | .019H | |
| V8-352,390 | .034 | .017 | 26-31 | 15426378
1 |
8 |
.078 -.218
5 |
||
| V8-390
375 hp |
.034 | .020 | 26-31 | 15426378
1 |
14° | .020H | .020H | |
| 1962 | 6-223
Std. tran |
.034 | .025 | 37-42 | 153624 | 6° | .025H | .025H |
| 6-223
Auto tran |
.034 | .025 | 37-42 | 153624 | 12° | .025H | .025H | |
| V8-292
Std. tran |
.034 | .017 | 26-31 | 15486372
1 |
5°
pulley |
.019H | .019H | |
| V8-292
Auto tran |
.034 | .017 | 26-31 | 15486372
1 |
12°
pulley |
.019H | .019H | |
| V8-352,390
Std. tran |
.034 | .017 | 26-31 | 15426378
1 |
5°
pulley |
.078 -.218
5 |
||
| V8-352,390
Auto tran |
.034 | .017 | 26-31 | 15426378
1 |
8°
pulley |
.078 -.218
5 |
||
| V8-390
375 hp |
.034 | .020 | 26-31 | 15426378
1 |
5° | .025H | .025H | |
| 1963 | V8-390
Std. tran 9 |
.034 | .017 | 26-31 | 15426378
1 |
5° | .083 -.183
5 |
|
| V8-390
Auto tran 9 |
.034 | .017 | 26-31 | 15426378
1 |
8° | .083 -.183
5 |
||
| V8-390
10 |
.034 | .017 | 26-31 | 15426378
1 |
6° | .083 -.183
5 |
||
| V8-390
330 hp |
.034 | .017 | 26-31 | 15426378
1 |
10° | .025H | .025H | |
| V8-406 | .035 | .017 | 26-31 | 15426378
1 |
5° | .025H | .025H | |
| V8-406
2 carbs. |
.034 | .017 | 26-31 | 15426378
1 |
8° | .025H | .025H | |
| 1964 | V8-390
10 |
.034 | .017 | 26-31 | 15426378
1 |
6° | 11 |
|
| V8-390
Std. tran 9 |
.034 | .017 | 26-31 | 15426378
1 |
4° | 11 |
||
| V8-390
Auto tran 9 |
.034 | .017 | 26-31 | 15426378
1 |
6° | 11 |
||
| V8-390
hp Std. tran |
.034 | .017 | 26-31 | 15426378
1 |
4° | .025H | .025H | |
| V8-390
hp Auto tran |
.034 | .017 | 26-31 | 15426378
1 |
6° | .025H | .025H | |
1- Engine numbering front to rear: Left 5678 Right 1234
2- No timing marks. Spark my be adjusted by the vacuum brake set screw on the distributor Housing.
3- Std. trans 3°, mercomatic 6°
4- V8-383 4 °, V8-430 7°
5- obtained at the valve stem with lifter collapsed
6- Std. trans 6° Auto tran 12°
7- Std. trans 5°, Auto tran 12°
8-Std. trans 5°, Auto tran 8°
9- 4 bar. carb.
10- 2 bar. carb.
11- Before 11-18-63 (.083-.183) from 11-18-63 (.050-.150) see note 5