Recent content by Bruce53

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    Autohelm...

    I have an ST4000 Raymarine autohelm. The slack in my helm drive requires a rudder reference transducer which costs around $200. I am a poor/good (meaning not wealthy but crafty with electronics) electrical engineer. Seems the rudder reference is probably dual-pots or a center-tapped pot that...
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    Carb

    I have rebuilt a MerCarb for my four-cylinder 140 181. Everything went fine until I began with the operating linkages. There are many wrong ways to put those parts together and, I found, there is very little help available - no good pictures from either my Clymer shop manual or the equally big...
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    Hydrogen

    My Mercruiser sterndrive shop manual is wildly concerned with battery charging and hydrogen. They keep emphasizing the danger of explosions. They even say to remove the caps when charging. In all modern batteries, the caps allow the oxygen from the negative terminals to mix with the hydrogen...
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    U-joint Bellows for 1986 Alpha one, generation one, Mercruiser

    Having a terrible time replaceing my bellows. Clymer Shop Manual says to "push bell housing ... so that the bellows will slide onto the gimbal housing flange." The Seloc Repair Manual says the same. It won't "slide" over with all that I do and I see no way to force it even when the BH is...
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    Torque on outdrive

    With the outdrive separated in two parts, I find I can easily turn the spline shaft on the upper part with one hand. On the lower part, I cannot turn the spline shaft by hand except with real heavy torque -- about four times the torque used in the upper part. I would not think that the pump...
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    Gasket

    Need some advice here. I am about to tie the new outdrive to the old transom plate. I have the gasket. Do I use a sealer or put it together dry. If sealer, do I use rtv or the non-hardening sealer. Do I use it on both sides or just one. Can/should I use a silicon grease on both sides of the...
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    Wiring #2

    Last question, I hope. There are four wires coming from (or going to) the voltage regulator on the alternator. Big orange obviously charging the battery, big black obviously to ground. But then there are two others: a purple and a blue. One goes to the key on the dash to "turn on the system"...
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    Wiring #1

    Almost there. Longblock installed. Peripherals attached. Last two questions remain having to do with wiring. I will separate. #1 - Still not sure of EST ignition hookup. From the coil, I have two spots for wire attachments - one over the other. On the top, I have two wires: a gray and a...
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    Air lock

    Sure getting the best on this forum and I do need it. How do I avoid an air pocket in the top when I do my initial start? The book says something about the sign of water coming out of the exhaust maniford but that water hasn't gotten into the head - the thermostat is closed and all water is...
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    Air lofk

    Sure getting the best on this forum and I do need it. How do I avoid an air pocket in the top when I do my initial start? The book says something about the sign of water coming out of the exhaust maniford but that water hasn't gotten into the head - the thermostat is closed and all water is...
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    Distributor

    Related to "Timing" thread below. On my new 3.0 liter engine, the pertrusion on the front of the EST distributor collides with my gas pump! Not being an expert on that distributor (read: dummy), can I assume that all will be ok if I rotate the thing exactly 90 degrees counter-clockwise to...
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    Timing

    Never saw an engine timing at one degree BTDC. That is what the marinizer of the new GM engine wants -- Barr Marine by EDM. Sounds crazy. I am used (77 years) to 6 - 8 degrees. Is that the difference with EST?
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    Est

    This EST ignition system came with my new engine and I am totally lost. Does anyone know, first of all, where I could get a wiring diagram so I can "hook it up" and then, where I can get a good description/discussion of the system? Can't find much on the internet. Thanks....
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    Grounds...

    Seems I am piling on you guys, but here is another. I got a new crome gas port for my SVC 195 SS because the threads were completely gone (tough to install, being so close to the tank) and I added a ground wire between the port and the tank, as I was advised to do. There is already a ground...
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    Gaskets...

    Is there a rule of thumb when we look at gaskets and sealers? Seems some gaskets are used dry (carb, head, etc), some use RTV sealer on one side only (pan, valve cover, etc), some on both sides, some use non-hardening sealers, some use sealers on bolts (head bolts, manifolds) some metal surfaces...
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