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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
.018C .018C
1955-56 All .034 .015 26-28 15486372
1
3
.019H .019H
1957 V8-312 .034 .015 26-28 15486372
1
.019H .019H
V8-368 .034 .015 26-28 15486372
1
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
.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 .025H .025H
6-223
Auto tran
.034 .025 37-42 153624 12° .025H .025H
V8-292
Std. tran
.034 .017 26-31 15486372
1
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
pulley
.078 -.218
5
V8-352,390
Auto tran
.034 .017 26-31 15426378
1
pulley
.078 -.218
5
V8-390
375 hp
.034 .020 26-31 15426378
1
.025H .025H
1963 V8-390
Std. tran 9
.034 .017 26-31 15426378
1
.083 -.183
5
V8-390
Auto tran 9
.034 .017 26-31 15426378
1
.083 -.183
5
V8-390
10
.034 .017 26-31 15426378
1
.083 -.183
5
V8-390
330 hp
.034 .017 26-31 15426378
1
10° .025H .025H
V8-406 .035 .017 26-31 15426378
1
.025H .025H
V8-406
2 carbs.
.034 .017 26-31 15426378
1
.025H .025H
1964 V8-390
10
.034 .017 26-31 15426378
1
11
V8-390
Std. tran 9
.034 .017 26-31 15426378
1
11
V8-390
Auto tran 9
.034 .017 26-31 15426378
1
11
V8-390
hp Std. tran
.034 .017 26-31 15426378
1
.025H .025H
V8-390
hp Auto tran
.034 .017 26-31 15426378
1
.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