Shorland 2.6 L 6 cylinder, 1972. Ticking.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • 917601
    Low Range
    • May 2008
    • 44
    #1

    Shorland 2.6 L 6 cylinder, 1972. Ticking.

    I am having a loud tick from my intake head. I have adjusted intake and exhaust valve tappet to .006 and ..010, ( specs) twice. What else can I check in the intake head valve side? I had the head gasket replaced two years ago and it started shortly after. It used to idle like a sewing machine. On start up it sounds great, when it hits operating temperature it has a single, rythmetic, annoying, noticeable tick....sorry, posted in wrong section.
    Tags: None
    • Qrover80
      Low Range
      • Oct 2009
      • 6
      #2
      Rod bearing ....

      The 2.6 has a LOT of cast iron in the block and it makes the sound of impending doom seem quiet ...

      Pull the pan and check the bearings , it is not that hard . when i ran 2.6 engines I considered the rod bearings to be a wear item and replaced them every 30k miles ...

      It is BARELY possible that there is some foreign matter or carbon in the combustion chamber but .... check the rod bearings anyway ...

        Comment

        • Qrover80
          Low Range
          • Oct 2009
          • 6
          #3
          It is also possible that one of the intake valve springs is broken but why it only does the noise when warm is a mystery ...

            Comment

            • Les Parker
              RN Sales Team - Super Moderator
              • May 2006
              • 2020
              #4
              Could also be an exhaust gasket leak.
              Or an out of round cam roller.
              Les Parker
              Tech. Support and Parts Specialist
              Rovers North Inc.

                Comment

                • 917601
                  Low Range
                  • May 2008
                  • 44
                  #5
                  Originally posted by Qrover80
                  Rod bearing ....

                  The 2.6 has a LOT of cast iron in the block and it makes the sound of impending doom seem quiet ...

                  Pull the pan and check the bearings , it is not that hard . when i ran 2.6 engines I considered the rod bearings to be a wear item and replaced them every 30k miles ...

                  It is BARELY possible that there is some foreign matter or carbon in the combustion chamber but .... check the rod bearings anyway ...
                  I have ruled out an exhaust leak. A rod bearing, is it possible to use a stethoscope on the block area to confirm before pulling the pan? The engine has only 28,500 miles on it and it has never been run hard (35 mph max).

                    Comment

                    • 917601
                      Low Range
                      • May 2008
                      • 44
                      #6
                      Originally posted by Les Parker
                      Could also be an exhaust gasket leak.
                      Or an out of round cam roller.
                      How would I check for an out of round cam roller?

                        Comment

                        • 917601
                          Low Range
                          • May 2008
                          • 44
                          #7
                          Thank you for the help. Sorry I made a dual post. My findings:

                          "I found intake number one ticking with the hose,valve cover off, I reduced clearance until the tick stopped, found it was .004 on my feeler gauge. I also found a slighter tick on number 6, reduced and final measured clearance was .005. Adjusted while hot.Thank You, I will drive it around to see if anything changes. " seems feeler gauges can be a ballpark measuremt.

                            Comment

                            Previous template Next
                            Working...