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lrg355

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Posts posted by lrg355

    Mercruiser Alpha 1 Gen 2 out drive oil reservoir.

    in This Old Boat

    Posted

    I recently purchased a boat with a 2003 Mercruiser that has a gear oil reservoir in the doghouse. When I purchased it last fall I removed the out drive to check everything as I have done approx 50 times on previously owned Mercruisers and OMC Cobras in the last 40 years. Of course drained the oil and replaced it. No sign of water in the oil, looked like new. Also drained the reservoir. After reassembly, filled the oil from bottom to top vent screw as usual and filled the reservoir. Since using the boat it has pulled in a full reservoir and 1/4 of gear oil so far. Seems to drop about 1/8 inch per fishing trip. Probably pulled in about 10 or 12 ounces so far. No sign of oil anywhere on the water or elsewhere. I have not had any previous Mercruisers with the reservoir, so no experience with it. I am wondering if this is normal to fill any leftover spaces in the out drive up to the reservoir. Any comments before I pull the boat out and start looking for leaks would be appreciated.

     

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    Lowrance HDS **** the bed

    in This Old Boat

    Posted

    I guess I am getting older than I think I am. Cant remember colors and facts from mounting a few month ago. You are correct, the total scan transducer has a black plug and goes into ch2 black connector. Channel 1 connector is blue and not used in my case. Only difference is that the transducer body has blue plastic inserts as shown on the picture under water.20190626_073509.jpeg20190626_073611.jpeg

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    Lowrance HDS **** the bed

    in This Old Boat

    Posted

    On my HDS Carbon the connector that the total scan transducer plugs into is blue and the connector on the transducer cable is blue. The blue connector on the Carbon is ch2. The blue connector on the total scan transducer wire wire will not plug into the black connector. The black which is ch1 and is a different connector type altogether.



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    Lowrance HDS **** the bed

    in This Old Boat

    Posted

    Just installed a hds 7 carbon with the total scan transducer and was having problems similar to what you described. Couldn't find the total scan transducer listed on the sonar installation feature. Finally found a video showing that the source must be selected to connector 2 (blue) for the total scan. Voila, the choice for total scan came up automatically and it works great. I think the black connector is source #1. Maybe that was accidentally changed. Easy to accidentally change something like that and not realize it

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    Yamaha Variable trolling speed (VTS)

    in This Old Boat

    Posted

    Works great. I have a 2014 F70LA that I hooked one up myself. The connector is there on any late model four stroke that is available in a tiller model. Mine is not a tiller but I bought a single pole, double throw switch and wired it into the existing connector. I believe the tiller models come with the switch standard. It will go from 600 rpm to 1000 rpm in 50 rpm increments. Yamaha now offers a switch and wiring harness setup that can be bought for non tiller models up to 115 hp.


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    stray electric current

    in This Old Boat

    Posted

    Electrolysis has nothing to do with the "softness" or "weakness" of metals but is totally controlled by how Noble a metal is. This is the term used to define its resistance to corrosion (oxidation). Gold is a very soft and mechanically very "weak" metal but is very noble. It can lay on a sunken ship in the ocean for a thousand years and look like new. Magnesium is one of the least noble metals and oxidizes very easily. In fact, a thin strip of magnesium will flash burn when subjected to a flame, ie rapid oxidation. Aluminum is of low nobility so you need something lower to corrode faster, ie Magnesium. Brass has a generally high nobility and stainless steel, depending on the type, Is very high.

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