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Old 03-16-2021, 08:27 AM
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ndutton ndutton is offline
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The R terminal has been used by a few forum members for different reasons. As jack said, some use it to give an electric fuel pump a pre-start jolt, I've used it in the past to get a single wire alternator to start charging without having to rev the engine up (I don't any more) but as yours was wired, it gives a coil with a resistor in line a higher voltage when starting. In my opinion, none of these schemes are necessary for a good starting, good running A4. Can you do it? Sure. Should you? That depends on how much you like extra wires and complication.

FYI, my Westerbeke A4 manual does not show anything connected to the R terminal in any of their wiring drawings.
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1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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