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DeSoto

 

1946-61 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 .020 35-38 153624 "0" .008H .010H
1949-50 All .035 .020 35-38 153624
1
.008H .010H
1951 All .035 .020 35-38 153624
1
.008H .010H
1952-53 Six .035 .020 35-38 153624
1
.008H .010H
V8 .035 .018
2
18436572
3
4
Zero Zero
1954 Six .035 .020 39 153624
5
.008H .010H
V8 .035 .018
2
18436572
3
4
Zero Zero
1955 2
Bar. Carb.
.035 .017
2
18436572
3
Zero Zero
4
Bar. Carb.
.035 .017 34 18436572
3
10° Zero Zero
1956 V8-330
2 Bar. Carb.
.035 .017 27-32 18436572
3
Zero Zero
V8-330
4 Bar. Carb.
.035 .017 27-32 18436572
3
Zero Zero
V8-341 .035 .017 27-32 18436572
3
Zero Zero
1957 V8-325 .035 .017 27-32 18436572
3
Zero Zero
V8-341 .035 .017 27-32 18436572
3
Zero Zero
1958 V8-350, 361
1 Carb.
.035 .017 27-32 18436572
3
.060-.210
11
V8-361
2 Carbs.
.035 .017
10
18436572
3
.060-.210
11
1959 V8-361, 383
1 Carb.
.035 .017 27-32 18436572
3
10° .060-.210
11
V8-383
Two Carbs.
.035 .017
13
18436572
3
10° .060-.210
11
1960 V8-361, 383 .035 .017 27-32 18436572
3
10° .060-.210
11
1961 V8-361 .035 .017 27-32 18436572
3
10° .060-.210
11

1- Third line after "0" mark.

2- Each set of points 26-28°, total dwell both sets 32-36°.

3- Cylinder numbering (front to rear): Left bank 1-3-5-7 Right bank 2-4-6-8. 4- Fourth line after "0" mark.

5- Second line after "0" mark.

10- Each set of points 29-32°; total dwell both sets 36-39°.

11- With lifter collapsed.

13- Each set of points 27-32°; total dwelt bothsets 34-40°.