1979 MG MidgetFACTORY OEM SERVICE PROCEDURE

LUCAS Alternators: Specifications

NOMINAL OUTPUT

Alternator Amps @ RPM Voltage
16 ACR 34@6000 12
17 ACR 36@6000 12
18 ACR 45@6000 12
20 ACR 66@6000 12
25 ACR 66 (5)6000 12
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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

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