newly rebuilt - ticking noise.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • hazza2508
    XSive
    • Sep 2009
    • 10
    • NSW, australia
    #1

    newly rebuilt - ticking noise.

    are you meant to be able to hear the valves ticking shut on an xs while it's running. newly built xs1100RH, timing marks and clearance good, but pretty loud ticking noise coming from cam shaft area - especially exhaust. i know it sounds like pinging and i know what this is but seems to be running too well.
    Tags: None
    • DGXSER
      Doctor of XSology(Deceased)
      • Nov 2008
      • 12001
      • Cincinnati, Ohio
      #2
      The valves on an XS are not quiet no matter what you do. I would check for an exhaust leak, if none found, then you probably are just hearing the normal sound of a well running beast.
      Life is what happens while your planning everything else!

      When your work speaks for itself, don't interrupt.

      81 XS1100 Special - Humpty Dumpty
      80 XS1100 Special - Project Resurrection


      Previously owned
      93 GSX600F
      80 XS1100 Special - Ruby
      81 XS1100 Special
      81 CB750 C
      80 CB750 C
      78 XS750

        Comment

        • dbeardslee
          XS-XJ Super Guru
          • Nov 2007
          • 4385
          • Maineville, OH
          #3
          When they get really noisy on top it's usually cam chain tension. Supposed to be checked every 1k miles. If you lapped your valves during the rebuild you will want to check the clearances again at 6k miles - they seat faster after a lapping. Gotta agree with Don though - a happy XS is usually a little noisy on top. It's kind of like having a wife - after you've listened to it long enough you get good at tuning it out .
          I think I have a loose screw behind the handlebars.

          '79 XS11 Standard, Jardine 4/1, Dyna DC1-1 Coils, 145 mains, 45 pilots, plastic floats - 25.7mm, XV920 fuel valves, inline fuel filters, speed bleeders, Mikes XS pods, spade-type fuse block, fork brace, progressive fork springs/shocks, manual petcocks, 750 FD, Venture cam chain tensioner, SS brake lines

            Comment

            • skids
              XS-XJ Super Guru
              • Jul 2002
              • 5047
              • Florissant, CO, USA
              #4
              Once I heard a ticking noise and found a leak at the exhaust header/head connection. Another time, I found a bad spark plug connector/wire connection.
              Skids (Sid Hansen)

              Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

                Comment

                • XSokieSPECIAL
                  XS-XJ Guru
                  • Jun 2009
                  • 1631
                  • Tulsa, OK
                  #5
                  Originally posted by hazza2508
                  are you meant to be able to hear the valves ticking shut on an xs while it's running. newly built xs1100RH, timing marks and clearance good, but pretty loud ticking noise coming from cam shaft area - especially exhaust. i know it sounds like pinging and i know what this is but seems to be running too well.
                  Just my opinion but, I suggest pulling the vave cover and rechecking cam bearing cap torque ( yea I know TC) and valve clearances. Just to be certain.

                    Comment

                    • strom
                      XS-XJ Guru
                      • Jul 2002
                      • 1577
                      • Slovenia, EU
                      #6
                      How about camchain tension?
                      How much play does it have if you try to wiggle it a bit?

                      My old 78 got a bit noisy up top... more than usual. Checked the tensioner but I dont think this is it.

                      Also, how do I know when its time to change the camchain? The bike did about 20k since it got a new camchain, but still... any ideas?
                      If it doesn't have an engine, it's not a sport, it's only a game.
                      (stole that one from I-dont-know-who)

                        Comment

                        • strom
                          XS-XJ Guru
                          • Jul 2002
                          • 1577
                          • Slovenia, EU
                          #7
                          Anyone? (bump)
                          If it doesn't have an engine, it's not a sport, it's only a game.
                          (stole that one from I-dont-know-who)

                            Comment

                            • mro
                              XS-XJ Super Guru
                              • Oct 2005
                              • 4276
                              • Hayward, California
                              #8
                              Anyone? (bump)

                              20,000 should not have worn the chain enough to need replacement.
                              Have one with 51,000 and it is fine and is quiter than another with 21,000.
                              If worried, check that there is still adjustment left on the tensioner.

                              mro

                                Comment

                                • bikerphil
                                  Master of XSology
                                  • Jan 2008
                                  • 8634
                                  • South Flori-DUH
                                  #9
                                  Originally posted by strom
                                  How about camchain tension?
                                  How much play does it have if you try to wiggle it a bit?

                                  how do I know when its time to change the camchain? The bike did about 20k since it got a new camchain, but still... any ideas?
                                  The chain should have about 1/4" of up travel at the bridge between the cam gears when it is properly adjusted.

                                  A chain should be good for at least 50K miles (80K km). You know it is time to replace when there is no more adjustment left in the tensioner.
                                  2H7 (79) owned since '89
                                  3H3 owned since '06

                                  "If it ain't broke, modify it"

                                  ☮

                                    Comment

                                    Previous template Next
                                    Working...