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A few thoughts to ponder

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  • #1

    A few thoughts to ponder

    Well today the wife gets ready to go off to work and the 91 fi festi has this main rattle when she started it .So I had her shut it off and check the oil.
    It is NOT low on oil . It has been running great and she said that its been doing that for a few days.

    What do yall think ?

    Slick50 or the like until I can rebuid it?
    Donn
    ______________
    93 Blue rio/aspire swapped,B8,
    Tags: None
  • #2
    What kind of main rattle? Block or head? It sounds to me like it could just be a lifter. When they wear down, they rattle when the car starts.
    In love with a MadScientist!:thumbright:
    There's a fine line between breathtaking ingenuity and "That's the stupidest thing I've ever seen!"

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    • #3
      Hum I didn't think of the lifters, I will have to wait till she get's home and see if I gan get it to do it for me .
      Donn
      ______________
      93 Blue rio/aspire swapped,B8,

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      • #4
        a video would help you get the sound diagnosed!! there are many proffesional ears on here!!!
        1992 white L, Bp, American racing 13's, stock trans.
        1991 White L, BP/F5MR, protege header, full aspire swap with gr2's, seats, and sway bar, 15" konig's, short throw, escort console.
        1991 blue L, 5 speed.
        1988 red L-plus-all stock.

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        • #5
          Lifters bleed oil when they sit, worn lifters bleed themselves dry with a quickness (hours as opposed to days/weeks). You probably won't hear it after it's warm and running, as the lifters now have oil pressure. Fire the car up when it's cold, place a long handled screwdriver to the valve cover and see if it sounds like it's in the head.
          1989 Carby L: Stock. Slow.
          1998 Mustang Cobra: ported heads, cams, longtubes, 4.30 gears
          2016 Focus ST: daily driven go-kart

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          • #6
            If it makes the noise for 1 or 2 seconds...bearings
            If it makes the noise for 1 to 2 minutes...lifters
            if it gradually goes away as the car gets warm ..piston
            If it gradually comes on as the car gets hot..worn oil pump sucking air
            extreme piercing high pitched long screech...
            estimate just given owner...
            Reflex paint by Langeman...Lifted...Tow Rig

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