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Diesel engine longevity

Discussion in 'Engines' started by Smiley0514, May 24, 2011.

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  1. Marmot, May 26, 2011
    #21
    Marmot

    Marmot Senior Member

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    WTF? is this some kind of new math?
  2. Capt J, May 26, 2011
    #22
    Capt J

    Capt J Senior Member

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    No because it is designed to see 70% load at a much higher rpm, than it is currently seeing on 1 engine that matches it's torque/hp curve. The boat is propped to achieve top rated rpm's and load using both engines, not just 1 of them.
  3. Beau, May 26, 2011
    #23
    Beau

    Beau Senior Member

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    I am not an engineer, nor do I even have an abilities in that direction. But based upon my real experiences of having to run on one engine over a distance, I would never push the throttle to 1700 rpms. Aside from the increased temperatures I saw at lower rpms, I'd have to put my rudders so far over it would be like pulling a barge
  4. Mark I, May 27, 2011
    #24
    Mark I

    Mark I Member

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    Ran back from Atlantic City to LI on one. I ran at about 1200 and didn't see any variations in normal readings (Detroit 6-71s).

    IMO a little different running on one by choice and if you have to. When you have to, you worry about losing the one that works.
  5. K1W1, May 27, 2011
    #25
    K1W1

    K1W1 Senior Member

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    Hi,

    It ain't that bad just look at the non runner as a large pile of spare parts
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