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    L6 Mercruiser simplified engine wiring

    What does the purple running though the throttle do?
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    L6 Mercruiser simplified engine wiring

    And did I leave out a circuit to charge the battery?
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    L6 Mercruiser simplified engine wiring

    The gauges and the alternator?
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    L6 Mercruiser simplified engine wiring

    Oh I see what you mean. My boat only had one connector at the engine but there is also a 40 amp breaker on the removed large gauge wire.
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    L6 Mercruiser simplified engine wiring

    I thought I left out only the large red 12v wire and all the trim pump wiring
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    L6 Mercruiser simplified engine wiring

    Good point. Thanks for the redirect
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    L6 Mercruiser simplified engine wiring

    Here is the FSM diagram
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    L6 Mercruiser simplified engine wiring

    I'm planning a complete re-wire on my 25 Bertram. It has Twin Mercruiser L6's and Ill be clean sheeting the electrical system since all wiring has been removed from the boat. the original harnesses have a 6-ish gauge power wire that ran to an ammeter for each engine and then the house loads...
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    1972 L6 remote controls need wiring repair

    It came apart without any trouble. The switches were a little gummed up but cleaned up nicely. The connectors were soldered to the wires so I clipped them and will put some ancor 16ga duplex in its place. Where should I grease? And how to I firm up the unit so it is more likely to hold the...
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    1972 L6 remote controls need wiring repair

    I'm asking because I'm afraid that if I take the side cover off a series of gears and springs will go all over the place
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    1972 L6 remote controls need wiring repair

    I have removed every bit of wiring from my '72 Bertram. I will be doing a complete re-wire and this remote control unit has frayed wiring for the start interrupt. How hard is it to get to the wiring without screwing something else up? What else should I do "while I'm in there"?
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    Instrument Replacement

    Thank you.
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    Instrument Replacement

    Oh...So that range applies to tank, pressure and temperature gauges?
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    Instrument Replacement

    If I replace my original oil pressure and temperature gauges (1972 L6 165's) how can I tell which brands will require new senders?
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    165 L6's out of the bertram. What do they need?

    I meant from a technical standpoint what makes it ignition protected. What keeps it from sparking?
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    165 L6's out of the bertram. What do they need?

    What is the difference between marine grade and automotive?
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    165 L6's out of the bertram. What do they need?

    how about this? http://reconit.ca/111/mercury-marine-delco-1107237
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    165 L6's out of the bertram. What do they need?

    Starter part number: 1108391 Alternator Part Number: 1100576 Both 1 digit off from what I see in my parts catalog....
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    165 L6's out of the bertram. What do they need?

    You can't tell from the pictures but there is a piece of square tube that is a structural member holding the 2 "sides" of the dollies together.
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    165 L6's out of the bertram. What do they need?

    I'm replacing the transom assemblies with rebuilt units. In preparation I have pulled the engines. I plan to degrease them, paint them, replace gaskets, ( oil pan, side plate and valve cover), update them with petronix and replace the rubber motor mounts. I allready rebuilt the carbs and...
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