Yanmar 6LPA 315

Discussion in 'Diesel Engines' started by Duco84, Aug 7, 2018.

  1. Duco84
    Joined: Feb 2014
    Posts: 57
    Likes: 1, Points: 8, Legacy Rep: 18
    Location: Montenegro

    Duco84 Junior Member

    What I can expect from well maintained Yanmar 6LPA, 5000 running hours?
     
  2. Lepke
    Joined: Sep 2015
    Posts: 76
    Likes: 5, Points: 8, Legacy Rep: 10
    Location: Oregon to Alaska

    Lepke Junior Member

    Clean oil and run at 80% of hp, 5-10,000 hours is common. Some go twice that. The problems are usually in the accessories - pumps, heat exchanger, etc.
     
  3. Duco84
    Joined: Feb 2014
    Posts: 57
    Likes: 1, Points: 8, Legacy Rep: 18
    Location: Montenegro

    Duco84 Junior Member


  4. Lepke
    Joined: Sep 2015
    Posts: 76
    Likes: 5, Points: 8, Legacy Rep: 10
    Location: Oregon to Alaska

    Lepke Junior Member

    You'll have to trace the wiring. One guess is a relay. It's become common for engine manufacturers to use a relay for the start circuit. When you turn the key or push a start button the power goes from the terminal on the starter where the battery cable connects - to the key - and back to the start terminal, often marked with an S. That can be a long run and with 12 volts, you get a voltage drop. If there's too much of a drop you'll eventually burn out the solenoid. With a relay the power travels from the cable connection - to the relay - and to the S terminal. A very short run. All the key does is supply a small amount of power to the relay coil, so a voltage drop doesn't matter. It also protects the key contacts from burning out.
     
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