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    sensors

    The way the oil reservoirs are supposed to work is that the external reservoir keeps the motor-mounted reservoir full. So in theory the only time the motor mounted reservoir gets low, is when the external reservoir is empty. So you only need a sensor on the motor-mounted reservoir. Of course...
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    No start after rewiring alternator 4.3 Mercruiser

    Sam, Diodes like in Battery Isolators always had a voltage drop when charging the secondary battery. Has that been solved?
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    Can I use a Yamaha 115 2-stroke prop on a Suzuki DF140?

    If the prop has a pressed in hub, you should be able to look up the prop and see if it fits both engines. You may need a new thrust hub and locking washers/cotter pins. If the prop finder says it won't fit, you can still try it. I was able to use a Mercury V6 prop on a Johnson V6 motor, by...
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    No start after rewiring alternator 4.3 Mercruiser

    An ACR is likely their version of a battery combiner. A battery combiner is a continuous duty solenoid and some electronics to control the solenoid. The motor will charge one battery until it is full then the solenoid will close combining the batteries for further charging. When charging...
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    No ignition power

    My '88 4.3LX MerCruiser had a red reset button on the starboard side of the motor. It was pretty visible. If you have one, you should be able to find it. A starter could draw a whole lot of current if the motor was binding. You might turn it over with a wrench and see how hard it is. I had...
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    PVC stringers?

    Polyester resin sticks to pressure treated wood very well, as long as it is dry. I like it because it takes a long time to rot, after it gets wet, unlike soft non pressure treated wood. Some may say that a properly built boat will not have wet wood. If so, why do we need to replace wet...
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    No start after rewiring alternator 4.3 Mercruiser

    OK, then why rewire alternator to charge house batteries first? That directive does suggest a priority for charging batteries, and I think it is the wrong one. If your house batteries get low on charge, but your starting battery is fully charged, at least you can get home.
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    Tachometer

    Your tachometer needs power ground and signal wire to function. Power and ground come from the ignition switch. The tach should zero when the ign is switched on, engine not running. If not, check power and ground supply to tach. The signal comes from the voltage regulator or rectifier...
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    dual battery

    Not sure that is called a 5 way switch. Connect the negatives of the batteries together, and to the motor. Connect battery 1 positive to the battery switch terminal 1, and battery 2 positive to switch terminal 2. The common terminal of the battery switch connects to the motor.
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    No start after rewiring alternator 4.3 Mercruiser

    Good plan (actually stupid plan). Now you can use your fully charged house batteries to listen to the stereo, make drinks etc, at the end of the day while waiting for a tow 'cause the starting battery wasn't charged. Not sure I agree with Blue Sea on that one.
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    Pressed in hub - remove or find washers?

    Tab Washer 14-816629Q AKA spider washer. I expect this to be widely available. Splined WASHER 12-31211Q03 Not all props need this. Some have it attached to the prop itself. Likely you will need to go to a prop shop or a Merc dealer for this. The flo torque thrust washer (under the prop)...
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    Bottom Paint

    Depends on the paint and the environment and length of the time of immersion. If the paint is ablative, it could be multi-season. The cheaper ablatives are one season only. It also depends on the temperature and therefore the speed of growth of the stuff. I have gone to an anti-slime...
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    Getting out of the boat

    No boarding ladder? There are temporary boarding ladders that you could use when trailering. Not sure how to avoid getting wet though.
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    Removing old water lines

    Superclean is purple power. Same stuff. PP is generic Wallyworld version. If it is tape adhesive residue, try rubbing alcohol. Acetone will dissolve other kinds of adhesive.
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    No start after rewiring alternator 4.3 Mercruiser

    I guess I will bite. What are you trying to achieve by rewiring the alternator? If you want to charge the house batteries, a battery switch is more flexible as it will allow you to charge house battery, starting battery or both. Normally the starting battery powers the ign switch, thru the...
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    Pressed in hub - remove or find washers?

    Gee, why remove (ruin) a perfectly good prop hub. It is doubtful a flo torque hub will replace the original pressed in hub anyway. and what exactly would be the point? It should use the same thrust washer as the flo torque. It should also use a standard Mercury spider washer and splined...
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    Removing old water lines

    I would try Superclean first. If that doesn't get it, there is a product called Mary Kate On and Off. It is 3 kinds of acid and alcohol. Protect your hands and use a rag to wipe it on. Wait a couple of minutes and hose it off. Protect any galvanized metal, like on a trailer.
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    1996 Mercury 115

    Check for spark on all spark plug wires. If you have that, check compression on all cylinders. Engines need fuel, compression and spark to run. Report back on findings
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    Drain plug

    Drainplugs are usually brass pipe plugs. There are also snap-in rubber ones. What kind is yours?
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    Ballast resistor? why

    Point arcing and point burning are two different things. A condenser absorbs the voltage as the points open to reduce arcing, and immediately feeds that voltage back into the ign coil, helping to generate spark. Condensers are used on magneto and battery/coil/points ignition systems. Point...
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