Ford Motor Co. Distributor Advance And Retard Specifications

NOTE: FOR ENGINE RPM AND DEGREES, MULTIPLY SPECIFICATIONS BELOW BY 2.

Distributor Part No.

Rot. ⁽¹⁾

Automatic Advance (Distr. Degrees @ RPM)

Vacuum Advance (Distr. Degrees) Operate Distr. @ 1000 RPM

Vacuum Retard (Distr. Degrees) Operate Distr. @ 1000 RPM

500

750

1000

1500

2000

74HF-CA

0-2

3.5-5.5

5.5-7.5

7.5-9.5

10-12

0-2

1.5-3.5

0-2.5

2-4

74HF-EA

1-3

5-7

6.5-8.5

9.5-11.5

12-14

0-.5

2-4

4-6

.....

74HF-JA

0-.5

0-1

3-5

6-8

8-10

0-2

3.5-5.5

0-3.5

2-4

74HF-LA

0-1

1-3

4-6

7-9

9.5-11.5

0-.5

2-4

4-6

.....

74TF-LA

0-.5

1-3

3.5-5.5

7.5-9.5

8-10

0-1.5

2-4

0-4

5-7

74TF-MA

0-.5

1-3

3.5-5.5

7.5-9.5

8-10

0-.5

2-4

0-3.5

2-4

74TF-NA

0-.5

1-3

3.5-5.5

7.5-9.5

8-10

0-1.5

2-4

0-4

5-7

74TF-RA

0-.5

1-3

3.5-5.5

7.5-9.5

8-10

0-1.5

2-4

0-3.5

2-4

74TF-SA

0.5

1-3

3.5-5.5

7.5-9.5

8-10

0-1.5

2-4

.....

74TF-TA

0-.5

1-3

3.5-5.5

7.5-9.5

8-10

0-1.5

2-4

.....

D3AF-AA

0-1.5

4-6

6-8.25

10-12.5

14-16.5

0-2

6-9

9.5-12.5

10.5-13.25

.....

D3BF-DA

0-1.25

2.5-4.5

5.5-7.5

8.5-10.5

11.5-13.5

0-1

0-2

5.5-8.5

8.5-11.25

0-3.5

5-7

D3DF-FA

0-1.5

1.5-3.5

4.5-6.5

6.5-9

8.5-10.5

0-3

6.5-9.25

0-4

2-4

D3DF-HA

0-1.5

3.5-5.5

7.5-9.5

9.5-11.5

10-12.5

0-1

1-4

4.5-7.25

.....

D3DF-KA

0-1.5

4.5-6.5

7.5-9.5

8.5-11

10-12.5

0-1

4-7

4.5-7.25

0-2

2-4

D3OF-DA

0-1

0-1.5

4-6

7-9.5

8.5-11

0-1.25

2.5-5.25

0-2

3.5-7

5-7

D3OF-FA

0-1

0-1.5

1-3

5.5-8

10.5-13

0-3

2.5-5.25

0-3.5

4.5-7

5-7

D3OF-GA

0-1

0-1.5

1-3.5

6-8.5

11-13.5

0-3.5

2.5-5.25

.....

D3OF-HB

0-1.5

.5-3

2.5-5

6.5-9

10.5-13.5

0-1.5

4.5-7.5

8.5-11.25

.....

D3OF-RA

0-1.5

3.5-7.5

5.5-7.5

6.5-8.5

7.5-10

.5-3.5

6.5-9.25

0-3.5

2-4

D3UF-EA

0-1.25

2.5-4.5

5.5-7.5

9-11

12.25-14.5

0-1.5

6.5-9.25

0-4

5-7

D3ZF-GA

0-1

0-2.5

2.25-4.25

5.5-7.5

8.25-11

0-1

2.25-4.25

6.5-9.5

9.5-12.5

.....

D4AE-AA

0-.5

0-2

2.5-4.5

5.5-7.5

8.25-11

0-1

2.5-5.5

7-10

9.5-12.5

.....

D4AE-HA

0-1.5

5-7

6-8

8-10.5

10-12.5

0-1

2.5-5.5

6.5-9.5

0-4

5-7

D4DE-FA

0-1.5

4.5-6.5

7.5-9.5

9-11

10-12.5

0-1

2.5-5.5

6.5-9.5

0-2

2-4

D4DE-LA

0-1.5

4-6

4.5-6.5

6-8

7-9.5

0-1.5

6.5-9.25

0-4

2-4

D4DE-MA

0-.5

.5-2.5

3.5-5.5

7.5-9.5

10.5-13.5

0-1.5

4.5-7.5

8.5-11.5

.....

D4DE-NA

0-1.5

3.5-5.5

5.5-7.5

6.5-8.5

7.5-10.5

0-1.5

4.5-7

6.5-9.25

0-2

2-4

D4DE-RA

0-1.5

3.5-5.5

5.5-7.5

6.5-8.5

7.5-10.5

0-4

6.5-9.25

0-3

2-4

D4OE-CA

0-.5

0-1.5

2-4

5.5-7.5

8-10.5

.5-4

8-11

10.5-13.5

.....

D4VE-CA

0-.5

3-5

7-9

8.25-10.5

0-1.25

5-8

8.5-11.25

.....

D4ZE-AA

0-1

1-3

4-6

9.5-11.5

11.5-14

0-2.5

4.5-7.5

......

.....

D4ZE-BA

0-1

4-6

7-9

9.25-11.5

11.5-14

0-2.5

4.5-7.5

......

.....

D4ZE-KA

0-1

4-6.5

7-9

9.25-11.5

11.5-14

0-2.5

4.5-7.5

......

.....

D4AF-DA

0-1

1.5-3.5

6-8

9.5-11.5

11.5-14

0-2.5

2.5-5.5

......

.....

⁽¹⁾	(Clockwise). CC (Counterclockwise) viewed from rotor end.