Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

1971 Mazda R100 Automatic TransFACTORY OEM SERVICE PROCEDURE

Autolite Distributor Advance Specifications

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

AUTOLITE DISTRIBUTOR ADVANCE SPECIFICATIONS

Distributor Part No. ⁽¹⁾

Centrifugal Advance (Dist. Degrees & RPM)

Vacuum Advance (Dist. Degrees & In. of Hg.)

Deg.

RPM

Deg.

RPM

Deg.

RPM

Deg.

RPM

Deg.

In. Hg.

Deg.

In. Hg.

Deg.

In. Hg.

DIRY-F⁽²⁾

0±.5

200-450

5.5-7.5

800

8.6-10.6

1500

13.2-15.2

2500

2.5

0-1

4.2

5-8

10.0

DORY-13

0±.5

200-450

10-12

1100

12.5-14.5

1900

16-18

3100

0-1

8.0

1.5-4

12.5

5.5-8.5

17.0

⁽¹⁾	Basic Ford Part No. is 12127 (Ex: DIRY-12127-F).

⁽²⁾	Vacuum Retard Range - 0.7° at 15-17" of Hg.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.

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