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need help,bottom end noise

Discussion in 'XJ Technical Chat' started by brokenxj700, Jul 22, 2010.

  1. brokenxj700

    brokenxj700 Member

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    :!: i just redid the carbs,adjusted the vavle shims,plug wires,plugs,oil, and now there is a clonk clonk noise on the right side on the bottom,by the way this is a 85 xj700n.is it my crank or could it just be the clutch needing adjusting ,fianlly got it to were i want it and now iam taking notice of this strang noise down there,,there is 4600 miles on it,when i had the vavle open the cam chain seemed tight,like it should be not to tight..what is some ideas on this noisey chater,yea i guess it more of a chater
     
    brokenxj700, Jul 22, 2010
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  2. Erman

    Erman Member

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    The cam chain would make a noise located more to the middle of the engine, particularly over the valve covers. If it is too tight, the tensioner may have gone out of timing and needs to be reset.

    What you're referring to, and considering the job you've done on the bike, makes me wonder if something like a washer has gone loose in the oil pan...
     
    Erman, Jul 22, 2010
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  3. charlie3

    charlie3 Member

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    My XJ700N has a bunch of miles on her too and I just had to redo the exhaust system. Check for holes or loose hardware around the header pipes, collector box and mufflers. Vibration of something loose could be causing your clunking noise. And if your noise is coming from the bottom of the bike well...
     
    charlie3, Jul 22, 2010
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  4. MaximumX

    MaximumX Member

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    Get or make a stethoscope to isolate the noice. I had a cracked header sleeve rattle that sounded an awful lot like it was coming from the bottom end. It's surprising how those noises can transmit through the motor.

    Like Charlie said, pay special attention to the exhaust. Good luck!
     
    MaximumX, Jul 22, 2010
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  5. brokenxj700

    brokenxj700 Member

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    that all sound good,iall be making a check list
     
    brokenxj700, Jul 22, 2010
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