327 Hydraulic Lifter failure (broken) - NCRS Discussion Boards

327 Hydraulic Lifter failure (broken)

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  • John S.
    Very Frequent User
    • May 4, 2008
    • 424
    #1

    327 Hydraulic Lifter failure (broken)

    Attached Files
    John Seeley
    67 Black/Teal
    300 hp 3 speed coupe
    65 Maroon/Black
    35k mile Fuelie coupe
    Tags: None
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    • James G.
      Very Frequent User
      • August 22, 2018
      • 783
      #2
      Re: 327 Hydraulic Lifter failure (broken)

      WOW I have seen destroyed lifters BUT never one like that!
      Any estimate on the miles put on the engine since rebuild?
      James A Groome
      1971 LT1 11130 - https://photos.app.goo.gl/zSoFz24JMPXw5Ffi9 - the black LT1
      1971 LT1 21783 - 3 STAR Preservation.- https://photos.app.goo.gl/wMRDJgmyDyAwc9Nh8 - Brandshatch Green LT1
      My first gen Camaro research http://www.camaros.org/forum/index.p...owposts;u=4337
      Posts on Yenko boards... https://www.yenko.net/forum/search.php?searchid=826453
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        • Mark E.
          Extremely Frequent Poster
          • April 1, 1993
          • 4498
          #3
          Re: 327 Hydraulic Lifter failure (broken)

          I haven't seen this before either.

          Perhaps shear failure due to a material defect, and/or repeated torsional load from the cam combined with the lifter sticking in its bore. Just a hypothesis.
          Mark Edmondson
          Dallas, Texas
          Texas Chapter
          1970 Coupe, Donnybrooke Green, Light Saddle LS5 M20 A31 C60 G81 N37 N40 UA6 U79
          1993 Coupe, 40th Anniversary, 6-speed, PEG 1, FX3, CD, Bronze Top
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            • Richard M.
              Super Moderator
              • August 31, 1988
              • 11302
              #4
              Re: 327 Hydraulic Lifter failure (broken)

              What does the cam lobe look like? If a piece broke off of it, it likely caused the lifter to wear down like that.

              I suspect it took some time to wear, then finally destroyed itself at 5 grand.
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                • John S.
                  Very Frequent User
                  • May 4, 2008
                  • 424
                  #5
                  John Seeley
                  67 Black/Teal
                  300 hp 3 speed coupe
                  65 Maroon/Black
                  35k mile Fuelie coupe
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                    • John S.
                      Very Frequent User
                      • May 4, 2008
                      • 424
                      #6
                      Re: 327 Hydraulic Lifter failure (broken)

                      Update here. Engine was pulled this morning and cam removed. Two pictures below show the damaged lobe. Further tear down of mains and rod bearings showed no wear or foreign material! Gotta love the Wix filter cartridges for these earlier small blocks. I have purchased and installed a Melling 22210 cam and new lifters. Of coarse everything was cleaned up real good before reassembly.

                      I do have one question concerning the balancer. It is the factory thin balancer and I was thinking of stepping up to a new balancer. Thoughts anyone? As a side note I am now runnning Edelbrock E-Street heads with 2.02 intakes and 1.60 exhaust. Also have a set of 1.6 roller rockers. Flat top pistons at advertised 10:1 ratio. looking for input.IMG_8972.jpgIMG_8973.jpg
                      John Seeley
                      67 Black/Teal
                      300 hp 3 speed coupe
                      65 Maroon/Black
                      35k mile Fuelie coupe
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