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    Mysterious electrical problem on a 1988 mercruiser 4.3

    Im restoring this old boat and am running into a phantom electrical problem. Some gauges aren’t working, but in investigating, I’m finding that their power supply is fluctuating and maxes out at something like 11.2 volts with the engine off but a fully charged battery. The bilge pump is new but...
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    Trim gauge not working even though sender is new

    I have just done the bellows job on my 1988 alpha one 4.3. I put new trim sender and limit units on the back, but in trying to calibrate them, I’m finding that the gauge is not working. I should add that most of the gauges are not working on this boat! Any advice on how to troubleshoot? Many thanks.
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    Lower shift cable replacement 1988 4.3 alpha one gen 1

    I’m just doing a cable replacement here and having real trouble routing the new cable in through the transom. I’m just hitting the back of the engine and can’t get past it. in fact, I’m a little concerned that I may have bent the cable a little too much in my attempts. 2 questions: 1. Any...
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    Maintenance overview for 1988 MerCruiser 4.3 alpha one

    Hi, I’m new to boat ownership and have recently bought a 1988 17.5 foot bow-rider with a Merc 4.3 alpha one (gen 1). I am doing the bellows, shift cable, trim sensors - along with an alternator change - but wanted advice on what else I should be looking at to get it ready for the first full...
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