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    Thread: Ls3 tick

    1. #1
      Join Date
      Oct 2009
      Posts
      151

      Ls3 tick

      Hey guys brand new crate ls3 holley terminator x. Tuned by Andrew. Everything was great until i started break in procedure according to gm paperwork. Holding at 2000 rpm it developed a ticking noise

      It has tsp stage 3 cam with springs and 7.4Ē pushrods.
      Also oil pressure while idling goes from 28-29 psi cold to about 24 psi when at operating temp.
      I am using driven BR30 oil for break in
      Any input will be greatly appreciated



      https://youtube.com/shorts/WV5muNZxOAg?feature=share
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73


    2. #2
      Join Date
      Sep 2010
      Location
      Orange County, CA
      Posts
      596
      Do not run it again, any potential metal shavings will destroy it. But first, you confirmed that itís not an exhaust leak? If itís not, I would start by checking rocker arms. Find a loose one, then diagnose why. To me, it didnít sound too deep down, like a rod knock. Also some like to cut open the used oil filter to make sure there are no metal shavings, although I think you may see some normally upon break-in.

    3. #3
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      3,885
      Country Flag: United States
      See if CamaroAJ will listen to it. He’s a world class GM tech and he’s probably heard that before.

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain

    4. #4
      Join Date
      Oct 2009
      Posts
      151

      Ls3 tick

      Not an exhaust leak i will message AJ but it seems he hasnt been active in a few months
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    5. #5
      Join Date
      Feb 2011
      Location
      dallas, tx
      Posts
      1,690
      Country Flag: United States
      Whenever I switched to a stage 2 tsp, dual valve springs 660 I think and push rods mine did the same thing. Still does 20,000 miles later and runs solid. Your fine

    6. #6
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
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      Did you measure piston to valve clearance when you installed that cam? Who spec’d the pushrod length? Did you check the wipe?

      High lift LS camshafts do have a sort of sewing machine sound to them. Hard for me to tell if that’s what you have in your recording.

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain

    7. #7
      Join Date
      Aug 2004
      Location
      Central Florida
      Posts
      452
      Ain't no way that's normal The tick sounds worse as you hold rpm's on it and the oil pressure seems low as well. I would say off with the valve covers and start there.

      BB

    8. #8
      Join Date
      Oct 2009
      Posts
      151
      Gonna do that this week
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    9. #9
      Join Date
      Oct 2009
      Posts
      151
      When i first started car it was fine gave it a few revs and nothing shut it off then a few min later started it again and it was quiet then the ticking started as i gradually increased rpms
      Shut it off then started it again a few min later and no ticking until i revved it again.
      Seems intermittent. But is it possible the stock lifters cant handle the springs?
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    10. #10
      Join Date
      Oct 2009
      Posts
      151
      Is this a sign of a bad lifter, low oil pressure, or just bleed down from sitting gor a few days?

      https://youtube.com/shorts/D1ptnYOJb8s?feature=share
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    11. #11
      Join Date
      Jul 2008
      Location
      Summerfield, NC
      Posts
      273
      Country Flag: United States
      That sir is a sign of a bad lifter. With that much movement I'd take a guess that you lost the roller. If it's an AFM engine then you just have a collapsed afm lifter. But that looks middle of driver's side? So most likely not AFM.

      If you have a bore scope pull the rocker and pushrod, then look down into the pushrod hole. The pushrod cup should be pushed up against the retainer clip.
      *Jeff*
      Project Salty - 1964 4 door Malibu, beaten, neglected, red headed foster child
      Cammed LQ4 / T56 Swap Project Thread <-click to read! 😁

    12. #12
      Join Date
      Oct 2009
      Posts
      151
      Thank you when i was pushing down it was still springing back up so the lifter plunger seems ok. This is a brand new crate motor this was probably the 4th time it was fired up. Car is not ready to be driven
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    13. #13
      Join Date
      Feb 2011
      Location
      dallas, tx
      Posts
      1,690
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      actually after listening to that again yours is much worse. Mine doesnít sound like that.

      Quote Originally Posted by icemanrd19 View Post
      Whenever I switched to a stage 2 tsp, dual valve springs 660 I think and push rods mine did the same thing. Still does 20,000 miles later and runs solid. Your fine

    14. #14
      Join Date
      Jul 2008
      Location
      Summerfield, NC
      Posts
      273
      Country Flag: United States
      Unless it has some aftermarket lifters in it, that isn't normal. Factory lifters are usually pretty solid. That's just one of the lifters that's loose, correct? All the others are solid feeling?
      *Jeff*
      Project Salty - 1964 4 door Malibu, beaten, neglected, red headed foster child
      Cammed LQ4 / T56 Swap Project Thread <-click to read! 😁

    15. #15
      Join Date
      Oct 2009
      Posts
      151
      They are all tight down in the safdle it isnt a loose bolt issue. Some i cant push others i can at varying amounts. Im guessing the lifters are just bleeding down

      I did notice black marks underneath by the header collector i have the exhaust rigged for tuning purposes only. Could that make a tick noise or is it too far down Name:  64003717164__D2E61D25-B0E0-460A-B94A-8ED9668A6438.JPG
Views: 268
Size:  461.2 KBName:  64003717917__76EF7D52-A6FE-49E2-B629-ED520D0BFC3B.JPG
Views: 269
Size:  441.1 KB
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    16. #16
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      3,885
      Country Flag: United States
      Pretty sure your lifters aren’t bleeding down. They should have a preload on them, they should not be loose....

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain

    17. #17
      Join Date
      Aug 2004
      Location
      Red Deer, Alberta, Canada
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      did the cam come pre installed? Id unbolt the rocker and look at the push rod, see if theres any damage to it? Im wondering if the push rod wasn't seated and it bent the push rod/damage the lifter.
      Matt
      72 Chevelle 370ci LS Turbo. Speedtech equipped.
      Instagram: Cst_koon

    18. #18
      Join Date
      Oct 2009
      Posts
      151
      Quote Originally Posted by protour_chevelle View Post
      did the cam come pre installed? Id unbolt the rocker and look at the push rod, see if theres any damage to it? Im wondering if the push rod wasn't seated and it bent the push rod/damage the lifter.
      No i did the work new springs upgraded rocker trunions everything was meticulously put together

      The exhaust pipe is pretty stiff. U can see i used safety wire to tie it up and with the cam the engine rocks alot while idling. Maybe the tick is coming from the header collector that may have worked loose
      I will see on saturday
      1969 frost green camaro
      LS3
      Speedtech pro touring front subframe
      ridetech rear 4-link
      moser 12 bolt eaton tru trac 3.73

    19. #19
      Join Date
      Aug 2004
      Location
      Red Deer, Alberta, Canada
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      1,322
      Country Flag: Canada
      Quote Originally Posted by Sinnister69 View Post
      No i did the work new springs upgraded rocker trunions everything was meticulously put together

      The exhaust pipe is pretty stiff. U can see i used safety wire to tie it up and with the cam the engine rocks alot while idling. Maybe the tick is coming from the header collector that may have worked loose
      I will see on saturday
      Sounds internal to me and that rocker suggest the head has to come off and its lifter related.
      Matt
      72 Chevelle 370ci LS Turbo. Speedtech equipped.
      Instagram: Cst_koon

    20. #20
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      3,885
      Country Flag: United States
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain

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