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Extremely noisy lifters after cam swap (new LS7 lifters) 2008 SSV

Discussion in 'VE Holden Commodore (2006 - 2013)' started by MrPtnt, Apr 16, 2018.

  1. MrPtnt

    MrPtnt New Member

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    I have just replaced my cam (VCM 883), lifters (Crow cams LS7), lifter trays (OEM), pushrods (7.400 – came with cam from VCM), valve springs (Dual springs), oil pump (HP Manley). And something is horribly wrong.

    When the engine went back together, I started it and it sounded fine initially, but now sounds horrible. In short, there is massive lifter noise, and the top end doesn’t seem to be getting oil through the pushrods (it is almost dry, just some drops of oil).

    The oil pressure is fine when measured at the sensor port at the back of the intake (45psi).

    I did the work myself, but have had a mechanic now look over the car. He checked oil pressure, confirmed that sounds like the lifters have no oil. He had the rocker covers off while running the car briefly, and noted that it was dry.

    I don’t understand lifter pre-load on these cars – I just bolted up the drivetrain with the pushrods from VCM, and as far as I can tell, there is no adjustment. Am I missing something?

    Any ideas on what could have happened? The swap seemed pretty straightforward, but now I have this mess.

    Any tips are greatly appreciated before I pull the engine. Thanks!
     
  2. monstar

    monstar Naturally as-pirated

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    Did you post something earlier on FaceBook?
     
  3. MrPtnt

    MrPtnt New Member

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    No, not me. Someone else having similar issues?
     
  4. monstar

    monstar Naturally as-pirated

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    Yes exactly, no oil through pushrods indicated no oil to lifters making a racket.
    So new guides I take it, and the lifters were keyed correctly to those guides with fill holes aligned?
     
  5. MrPtnt

    MrPtnt New Member

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    Either was my mechanic (if it was after about 2pm today), or is a funny co-incidence.

    I just put the lifters into the guides (the fit snugly), lowered the lifters into the bores, torqued up the tray. I was under the impression that the direction of the holes in the lifters didn't matter (the old ones were all over the place)
     
  6. monstar

    monstar Naturally as-pirated

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    No sorry you are right is only deac that need aligned.
     
  7. monstar

    monstar Naturally as-pirated

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  8. delcowizzid

    delcowizzid on holiday

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    How much preload do you have if the pushrods are rattling around loose as a goose oil might not make it to the top if the pushrods are floating off the lifters.
     
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  9. lowandslow

    lowandslow Well-Known Member

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    Would not letting the lifters soak in oil for a while cause this? Or should they pump up shortly after anyway??
     
  10. delcowizzid

    delcowizzid on holiday

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    Don' need to soak them.if the preload was wrong they can get damaged they arnt a ball and seat old style lifter they use an oil metering disc instead.we use them on buick v6 good lifter over stock and quiet but always set preload carefully
     
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  11. MrPtnt

    MrPtnt New Member

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    OK, so pulled one of the rocker covers to re-check pre-load, and it was between 1 turn and 1 1/4 turns.

    Unfortunately I did find bits of the valve springs broken off under the rocker covers...
     
  12. MrPtnt

    MrPtnt New Member

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    These are the pieces of the K-Motion springs. I found these along the length of the head, so are breaking off all springs.

    What could possible be causing this? The car has been run for a matter of minutes (and never driven) since the cam/etc swap.

     
  13. EYY

    EYY Well-Known Member

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    Coil spring bind? - Pretty rare on a beehive spring though unless you've gone crazy with cam lift. If you've used high ratio rockers with an aftermarket cam with decent lift it could cause such a problem.

    May be due to a manufacturing fault, but may be worth contacting the manufacturer if you can't determine any other cause.
     
  14. delcowizzid

    delcowizzid on holiday

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    Ouch too much lift for the springs did you do retainers and collets as well did the springs fit in the retainers properly
     
  15. MrPtnt

    MrPtnt New Member

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  16. delcowizzid

    delcowizzid on holiday

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    Best bet is ring vcm in the morning and hope they warranty all the parts supplied.if it's coil bound the springs and broken them then the lifters pushrods and cam probably arnt to flash either have you pulled any pushrods to see if they are bent to ****
     
  17. MrPtnt

    MrPtnt New Member

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    Will call them tomorrow. Any idea what could cause this? I didn't think it was possible to stuff the installation of valve springs up...
     
  18. delcowizzid

    delcowizzid on holiday

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    Previous owner hasn' fitted mace high ratio rockers that would probably do it I know they used to do 1.9 ratio it' a lot more lift on that can than 1.7
     
  19. blackve76

    blackve76 Well-Known Member

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    Something really wrong, hopefully you get it sorted without major engine damage but sounds bad.
    Cam timing correct? Pushrod correct lengthy? Lack of oil up top is odd as well maybe oil pump o ring?
     
  20. delcowizzid

    delcowizzid on holiday

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    What the verdict you get in touch with them
     

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