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Valvetrain Tick

Discussion in 'The Garage' started by daleearnhardt01, Feb 8, 2005.

  1. daleearnhardt01

    daleearnhardt01 1/2 ton status

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    98 Vortec 350 with 49k miles...

    Sounds like a valvetrain tick on the passenger side. Any ideas on what I can do, I guess I could adjust the valve thats ticking but was wondering if there were any other ideas. Kinda strange for this to happen on such a low mileage motor?
     
  2. mr_clean

    mr_clean 1/2 ton status

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    Not sure about with newer motors, but back in the day... the salty dogs used to say to put a little tranny fluid or marvel mystery oil in the crankcase for sticky lifters...

    Anyone else know if that works or is it just myth???
     
  3. daleearnhardt01

    daleearnhardt01 1/2 ton status

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    Ive heard that too, now that Ive done a little poking around apparently the newer Vortecs like to tick a little bit so maybe I shouldnt be alarmed.....
     
  4. dirtwarrior17

    dirtwarrior17 Banned

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    IMHO it sounds like its the rockers. Have you pulled the covers and check the torque specs?
     
  5. diesel4me

    diesel4me 1 ton status Premium Member

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    The Marvel Mystery oil might work

    If its due to sticky lifters,then Marvel Mystery oil might help,or some "Valve Medic" additive,GM's "Engine Oil Supplement" from a dealers parts counter is the best stuff to try first,its a bit pricey though---

    The vortec's arent usually noted for valve train noises like the older small blocks--I have read about a lot of them having piston slap though,especially after a start up in extreme cold weather,but the dealers are not fixing them,calling it "normal" engine noise!:surepal: --not if I had spent 30 grand on a new truck,ANY noise isnt "normal" on a new truck if you ask me!!:crazy:
     
  6. 1977k5

    1977k5 3/4 ton status Vendor

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    I have a 99 Suburban with a 5.7 vortec that has developed a slight exhaust leak. Check that out first. If it is not that, it is either a loose or broken rocker (pretty unlikely) or a sticky lifter.
     
  7. daleearnhardt01

    daleearnhardt01 1/2 ton status

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    If it is a sticky lifter should I try some tranny fluid or Marvel Mystery Oil to try to get it unstuck.

    Will it hurt anything to drive it for a few weeks until I get it home to look at it, I dont really have the resources to mess with it up here at school, I guess i could if I had to but Id prefer to get it on the lift at home...
     
  8. AkMudr

    AkMudr 1/2 ton status

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    Try some SeaFoam Green..good stuff for cleanin anythin gummed up in the valvetrain.
     
  9. 89K5Carolina

    89K5Carolina Newbie

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    ticking 350

    pull off your valve covers and see if there is any play in your pushrods. they will make a tick if they have loosened up.

    litty


    89' k5 6" lift, 350, Holley TBI, THM350, NP241, 10 bolts 4.10 w/eaton lockers 36"
     
  10. ssls6

    ssls6 Registered Member

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    I would try Autorx if you think it is a sticky lifter. That stuff is a very aggressive ester that really cleans up a motor. Tranny fluid doesn't have the detergents it once had.

    With hydraulic lifters, it would be unusual to have a rocker that needs adjusting.
     
  11. daleearnhardt01

    daleearnhardt01 1/2 ton status

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    I just cant believe that it could be a sticky lifter with this low mileage but I guess it happens...
     
  12. pineyjon

    pineyjon Registered Member

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    i second the exhaust leak
     

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