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Help Diagnosing Engine Noise

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  • Help Diagnosing Engine Noise

    I went to a ride the other day on my 79SF and halfway thought the ride, I started to hear a clicking sound from cylinder 1. I now have smoke coming from cylinder 1 and a small oil drip out of the headers and the cylinder meet.
    79 SF

  • #2
    Your #1 header pipe - is it original? The original double-walled pipes can break a weld and rattle inside - might be the "clicking".

    I would pull exhaust and check for looseness - clean out exhaust outlets looking for oil - new gaskets and re-install.

    You might also check valve clearances - they might be off and could contribute to extra valve train noise - though close tolerances usually mean a quiet valve train versus noisy.

    John
    John is in an anonymous city with an Alamo (N29.519227,W-98.678980)

    Go ahead, click on the bikes - you know you want to...the electrons are ready.
    '81 XS1100H - "Enterprise"
    Bob Jones Custom Navy bike: Tkat brace, EBC floating rotors & SS lines, ROX pivot risers, Geezer rectifier, new 3H3 engine

    "Not all treasure is silver and gold"

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    • #3
      Check compression, you may have a blown head gasket. You might also pull your valve cover and make sure a valve seal didn't work itself loose. If it did, it might be banging around inside the valve spring.
      "The Hooligan" XJ1100, Virago Gauge Pods, Screaming Eagle Mufflers, K&N Filter, hand made rear fender, side covers, and solo seat, round bar conversion, small headlight, tail light, and cat eye turn signals, chip fuses, rewired the right way.

      Pics: http://s1236.photobucket.com/user/ya...?sort=6&page=1

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      • #4
        Sounds

        Like a valve guide seal on your #1 exhaust valve.
        mack
        79 XS 1100 SF Special
        HERMES
        original owner
        http://i946.photobucket.com/albums/a...ps6932d5df.jpg

        81 XS 1100 LH MNS
        SPICA
        http://i946.photobucket.com/albums/ad305/mack-055/2.jpg

        78 XS 11E
        IOTA
        https://youtu.be/wB5Jfbp6SUc
        https://youtu.be/RaI3WYHSuWA



        Have recovery trailer and shop if you breakdown in my area.
        Frankford, Ont, Canada
        613-398-6186

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        • #5
          Anyone live in Northern Virginia or around Front Royal Va, that might be willing to help me repair the my bike. I will Bring the beer and my bike to you.
          79 SF

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