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  1. M

    House Batteries

    Hi Everyone, My boat (SR 36DB) was in a harbor with no shore power a while and some of my batteries got depleted to less than 12v. Starting the engines was not a problem. So I thought that when I drive the boat going home, I expected the batteries to get recharged by the alternators...
  2. M

    Reduced Power

    Hello everyone. Happy Friday. My Mercury 8.1 port engine only goes up to 2000rpm when engaged, but would go higher if in neutral. In neutral, it does not misfire or anything associated with ignition or timing issues. But when the transmission is engaged, it goes only to 2000rpm with noticeable...
  3. M

    Mercury 865664 Pressure Transducer 500psi

    Hi Everyone, Has anyone encountered this part for replacement? It is located at the transmission area, right next to the shift solenoid. I was told that mine is probably defective. But I would like to make sure that it is, before I spend a couple of hundreds for it. So I'd like to ask what this...
  4. M

    Digital Throttle and Shift

    Hello, my boat has the symptoms of a bad throttle position sensor (TPS): 1. sometimes engine won't start 2. rough or idle speed going up and down 3. motor won't run above 2000rpm when gear is engaged, but will do if in neutral position. Is there any other cause for these symptoms? I tried...
  5. M

    Transom Harness

    Hello, I have a 2007 Sedan Bridge with two Mercruiser 8.1 engines. On the port engine, I see this harness that is not connected to anything and I can't find where it is supposed to be connected to. On the starboard engine, it is labelled as transom harness and it is connected to another cable...
  6. M

    2007 36 Sedan Bridge Black Water Gauge

    Hi, To members with 36 DB Sedan, is the blackwater gauge on the ePlex screen supposed to show intervals of 1% or something else. When I got my boat months ago, the gauge shows 50% full. After several weeks of use, it was still at 50% so I decided to empty the tank fearing that gauge was not...
  7. M

    Low Cylinder Compression

    Hello, I have a 36 Sedan Bridge with two Mercruiser 8.1 engines. One of the cylinders gave a very low compression reading (50 psi). Is this reading more about a broken ring or a valve that doesn't close? I am optimistic that a broken piston ring will not give a very low reading and hope that it...
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