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
Ducellier Distributor Advance Specifications
NOTE:
FOR ENGINE RPM & DEGREES, MULTIPLY SPECIFICATIONS BELOW BY 2.
DUCELLIER 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. | |||||
| 4387 & 4388 | 0-3 | 500 | 12.5 | 1500 | 16.8 | 2000 | 18 | 2250 | 1.1 | 3.9 | 3.4 | 7.8 | 5.5 | 15.6 | ||||
| 4348 & 4349 | 0-2 | 450 | 12.0 | 1500 | 15.0 | 2000 | 16.5 | 2250 | 1.5 | 3.9 | 4.6 | 7.8 | 7 | 15.6 | ||||
| 4296 & 4297 | 0-1 | 750 | 5 | 1000 | 16.2 | 2000 | 19 | 2500 | 1 | 2.8 | 5.3 | 7.8 | 10 | 12.5 | ||||
| R-234 | 0-1 | 450 | 1.5 | 880 | 14.0 | 1500 | 18 | 2600 | 1 | 4.3 | 5 | 11.8 | 7 | 19.7 | ||||
| R-235 | 0-1 | 500 | 8 | 1000 | 12 | 1500 | 15 | 2000 | 1 | 4.3 | 5 | 11.8 | 7 | 19.7 | ||||
| R-239 | ..... | .... | 7 | 850 | 12.5 | 1500 | 20 | 2000 | 1 | 4.3 | 5 | 11.8 | 7 | 19.7 | ||||
| 5901.44 | 0-1 | 500 | 4-6 | 1060 | 11-13 | 1975 | 13.5-15.3 | 2700 | 1 | 4.5 | 4.3-6.3 | 12 | ..... | ..... | ||||
| 5901.51(1) | 0-1 | 600 | 11-13 | 1500 | 14-16 | 2000 | 14-16 | 2200 | ..... | ..... | ..... | ..... | ..... | ..... | ||||
| 5901.53 | 0-1 | 500 | 10-12 | 1200 | 12-14 | 1925 | 14-16 | 2650 | 1 | 8.7 | 4-6 | 17 | ..... | ..... | ||||
| 5901.38 | 0-1 | 500 | 3-5 | 1000 | 7-9 | 1500 | 11-13 | 3000 | 1 | 2.5 | 4-6 | 6 | ..... | ..... | ||||
| 5901.40 | 0-1 | 500 | 3-5 | 985 | 7-9 | 1500 | 11-13 | 3000 | 1 | 2 | 3-5 | 8.7 | ..... | ..... | ||||
| 5901.48 | 0-1 | 500 | 3-5 | 985 | 7-9 | 1500 | 9-11 | 2600 | 1 | 2 | 3-5 | 8.7 | ..... | ..... | ||||
| 5901.49 &.52 | 0-1 | 500 | 3-5 | 800 | 9-10 | 1250 | 12-14 | 2250 | 1 | 2 | 3-5 | 8.8 | ..... | ..... | ||||
| DV-011A(2) | 0-1 | 400 | 12 | 1000 | 17 | 2000 | 20 | 1700 | ..... | ..... | ..... | ..... | ..... | ..... | ||||
| DX-010A(2) | 0-1 | 200 | 10 | 1000 | 12 | 2000 | 15 | 2500 | ..... | ..... | ..... | ..... | ..... | ..... | ||||
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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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