noise

Discussion in 'General Motoring' started by Chrs, Jan 28, 2007.

  1. Chrs

    Chrs Guest

    Has anybody heard of this before? a diesel engine very noisey when
    start up.and when still cold. gave it a oil change and flter now it is
    very quite.
     
    Chrs, Jan 28, 2007
    #1
  2. Chrs

    Chris Dugan Guest

    Yes, if the engine has hydraulic lifters and the previous oil was the the
    wrong grade or too low in the sump, another reason can be a low quality
    pattern oil filter which allows too much oil to drain back into the sump
    after the engine is switched off.
    My HDi clatters when cold and until after I change gear into 2nd for the
    first time each day, ever since the last service. I disputed the oil change
    with the garage who then repeated it with an OEM filter and showed me the
    oil container and grade and filter before they were installed.

    Chris
     
    Chris Dugan, Jan 28, 2007
    #2
  3. Do you know when the last oil & filter change was ? As this might have
    something to do with it.

    Dave G
     
    Dave G via CarKB.com, Jan 28, 2007
    #3
  4. Chrs

    malc Guest

    Sounds normal to me. Both my citroen (xantia 1.9TD and BX 1.9D) were
    like that but the rattliness soon returned. It didn't seem to affect the
    engine as they were both well into the 150k miles before I got rid of
    them.
     
    malc, Jan 28, 2007
    #4
  5. There are two basic types of oil filter element - those that have non-return
    valves and those that don't. If the filter is in such a position that it
    can drain when the engine is not running, it will need to be of the type
    with a non-return valve, or the first few seconds of oil flow after the
    engine has started will be devoted to filling the filter, not lubricating
    the rubbing and rotating bits that really need it. As you can imagine this
    is Not a Good Thing, so it is just as well to make sure you are using the
    correct type of element. Most filter element catalogues will show whether a
    non-return valve is fitted.

    Ron Robinson
     
    R.N. Robinson, Jan 28, 2007
    #5
  6. Chrs

    Chrs Guest

    This engine has over 256367 on the clock and still gos very well.the
    only thing that has to be done is anti roll bar rubbers and fit a new
    alterantor belt.

    chris addlestone surrey
     
    Chrs, Jan 29, 2007
    #6
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