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 BMW 3.0CS Automatic TransFACTORY OEM SERVICE PROCEDURE

Hitachi Distributor Advance Specifications

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

HITACHI DISTRIBUTOR ADVANCE SPECIFICATIONS

Distributor Part No.

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.

D612-52

0-1

500

.....

1415

.....

0-1

.....

17.7

D606-52

0-1

450

.....

1000

.....

0-1

.....

5.5

9.6

D410-58

0-1

450

.....

1500

.....

0-1

.....

12.25

D412-59

500

.....

1000

.....

0-1

.....

15.5

D412-63

0-1

550

.....

12.5

2100

.....

0-1

9.8

.....

6.5

13.8

D414⁽¹⁾

0-1

550

.....

2400

.....

0-1

.....

6-8

16.6

⁽¹⁾

Subaru.

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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