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    Trim wiring problems

    A 3 wire PTT motor uses solenoids. Auto starter solenoids would work, but are not sealed, causing sparks in an area that could have gasoline fumes. Marine solenoids are sealed, and I therefore recommend them. They will be available at most marine stores. The switches on your control...
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    SeaSenor

    A guess is that the overheat warning for the motor is sounding. A lot of them are built into the motor control box.
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    Hook up boat engine to permanent magnet generator.

    Larger boats have generator sets for a reason...They use less fuel than running a propulsion motor. They do take up more space, which that why they are usually on 40 footers or larger. Some put the commercial gens on their swim platform. They are air cooled and air ventilated and cheap. That...
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    Towing and Launching

    The boat is listed at 1025 pounds. Add about 300 pounds for the trailer. If the car is rated for 1500 pounds it should be fine. No trailer brakes are needed.
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    Boat trailer rusting at welds galvanized

    The rust on the rear caps (picture 2,4) looks especially bad. Make sure the trailer tube drains, or you will have swiss cheese steel. Also check the axle. They need to drain or they will rust out quickly. The line of rust (picture 3) is potentially bad. See if it will stop with cold...
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    Hook up boat engine to permanent magnet generator.

    as Bob said, in the 60's automobiles had permanent magnet DC generators instead of alternators. The advantage of the generators was that they did not need any voltage from the battery to charge the battery. So if you jump started (or bump started) a car, it would charge a completely dead...
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    SeaSenor

    Approximately 10 what? Minutes? Is your motor control unit built into the console? If so, could it be a buzzer warning?
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    `97 Fast Strike 150 trim/tilt issue

    Look near the starter for a fuse. A lot of them will have a double fuse holder with a spare fuse on the unused side. Before replacing the fuse, "exercise" all the switches to assure they spring back to the center position. You might blow them out, since water will complete the up circuit, if...
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    Cheetah 180V (1984) or similar outboard conversion

    So you are going to replace a 225HP+I/O motor with a 115HP outboard? I would expect performance will suffer somewhat. Yo will save about 700# of weight though.
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    Options for water sealing wood

    I would use some plain spar urethane. That holds up well in direct sunlight, in a marine environment. It will work well under vinyl. Catalyzed poly resin will also work very well under vinyl. No FG cloth needed. Not to disparage Woodonglass and others, but I do not understand how linseed...
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    fixing rotted floor

    In addition to what Scott said, some (not many) boats have the stringers sealed with resin and cloth. This obviously helps them resist rot. Newer boats can have non-wood stringers. Yours's is probably too old for this option. To answer your question. Look at the bottom of your hull. Each...
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    A few questions from a learner

    Gee, you can get a brand new Turning Point 4 blade prop housing for MerCruiser for under $100. I use this prop on my heavy 21 footer and it works well. Cheaper prop housings are also available. Likely a direct replacement for yours is about $75. A reusable hub for that prop and many others...
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    Looking to find what this boat may be worth

    That looks to be an early 70's Avenger. The motor is likely '78-80 or so. Not sure what it is worth, being so old. What is the length of it? 18'
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    Mercury outboard serial number

    The maxrules site has a model year by serial number chart. I would say early 90's, but you should look it up.
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    Replacing Gas engine with electric motor

    You have twin V6 engines, right? There are some manufactured boats, although I do not remember one with as much power as you would need. I would recommend you see what they use for power and batteries. There was an electric ski boat. It ran for 2 hours and then needed an overnight charge.
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    Perfect Prop

    Mercruiser has several trim tab anodes, made for props with more rake. One of those might fit your outdrive, without grinding.
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    A few questions from a learner

    I think you should get a new prop. That one has significant chips, which will cost speed and efficiency. Make sure the current Tach turns in the middle of the max recommended RPM range before choosing the pitch of the new prop. If so, a 4 blade with 2" less pitch may be better for that...
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    1989 mercury 115 ignition test

    With the motor on it's side, the mercury switch might ground out the ignition. Older Mercs' had such a switch. Not sure if your motor has one.
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    1989 mercury 115 ignition test

    Take a look at the CDI Electronics web site. They should have an ignition troubleshooting procedure for your ADI ignition system. ADI systems do not use the battery to make spark. The switchboxes are grounded to kill the spark. Without controls, the motor would normally spark, when the...
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    1972 ranger fuel cell

    In that old of a boat the fuel tank could be steel or aluminum, if original. I doubt it is plastic, if original. It is likely amidships. Where is the fuel filler? it is likely a straight shot to the tank.
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