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Mitsubishi: Loss of power

  1. #1
    Nirodac
    Guest

    Loss of power

    OOps, new news reader, I forgot the subject entry, sorry.


    I need a second opion.

    1991 Laser, 1.8 liter, 265,000 Km

    Problem:
    Loss of power when climbing hills.
    Seems to be OK on level roads.

    History:
    I changed the timing belts within the last three months.
    Before the belt change, the car sat idle for 5 months (periodic starts
    about every couple of weeks). Driver (my son) claimed that there was no
    loss of power before the storage.

    Attempts;
    We've changed the air filter.

    Next is a injector cleaning.

    But the question I have is:
    Could it be that the catalyic convertor is plugged, and how do you
    test it.


  2. #2
    Peter
    Guest

    Re: Loss of power

    In the mornings, is your car easy or hard to start ??, 1991 Laser had a few
    problems here in Australia with bad engine rings. Owning a KB series, the
    rings wore out with-in 10 years, I would test your compression to check.
    Could be several things.

    Peter
    Australia
    "Nirodac" <com> wrote in message
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  3. #3
    Nobody
    Guest

    Re: Loss of power

    Double check the timing marks and make sure you didn't retard the timing a
    tooth. As for the cat, it's possible, but not likely. The way to test them
    is to get the car hot and read the temperature of the pipe in and out of the
    cat. If there is a large difference (out is colder), it is clogged.

    --
    Todd Honea

    "Nirodac" <com> wrote in message
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  4. #4
    TG
    Guest

    Re: Loss of power

    It is possible but loss of power, especially on hills, sounds like a fuel
    pump, fuel filter, or evaporative emission problem. To check for the later
    (the least likely) try going up the hill with the gas cap off. TG

    "Nirodac" <com> wrote in message
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  5. #5
    Nirodac
    Guest

    Re: Loss of power

    "Nobody U. Know" <com> wrote in
    news:0x6Jd.2138$columbus.rr.com:
     

    Well I checked the timing. There appeared to be two marks, and one was
    right on a 5 degrees. But after much looking, it might be that it was just
    a flake of paint.
    If I read the mark correctly (it isn't much of a mark) the reading is about
    10 degrees ATDC, with the test point grounded, and TDC ungrounded. The
    mark appears off the stationary guage , toward the firewall side of the
    engine. So if my timing is retarded, which way do I move the sprocket.
    Would that be one tooth clockwise.

    Would 10 degrees affect performance that much, and is ten degrees really
    one tooth.

    Coincidently, the "flex" portion of the exhaust pipe, between the exhuast
    manifold and the cat, has spung a significant leak. With the pipe off I'll
    be able to look into the cat.

    Thanks for the help so far.


  6. #6
    Bob
    Guest

    Re: Loss of power

    10 degrees retarded timing is a lot, and in my opinion, would definitely
    negatively impact the operation, especially when (attempting) accelerating.
    I have no idea how many degrees for each timing belt tooth, but you can
    estimate by dividing 360 degrees if you know the number of cogs on the cam
    shaft sprocket.

    Bob

    "Nirodac" <com> wrote in message
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