Jaguar E-Type Alternator System Explained (page 3)

    The process of troubleshooting a Lucas alternator is really quite straight forward. We'll break this up into components, and talk about possible problems with each one.

1) Alternator.

2) 4TR Voltage Regulator 3) 6RA relay 4) 3AW relay.

    The 3AW is very delicate, dropping it can cause the insulators to break and the wiring to short. Use the following test procedure:

To read about how to completely modernize the Lucas 11AC alternator and control system, click here.

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