Rolling And Rocking.

Discussion in '2005 - 2009 Specific Tech' started by F. Jason Garriott, Jul 23, 2014.

  1. F. Jason Garriott

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    Hi All:
    My '05 4.6 is ticking and most likely needs new valve lash adjusters. Should I replace the roller-rockers too?
    Should I put new roller rockers against an old cam? Any clues would be helpful. Thanks!
     
  2. Bullitt95

    Bullitt95 Active Member

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    Did you check the oil level recently? What oil are you using?
    Insufficient oil or the wrong viscosity of oil could cause the symptoms you've described.
     
  3. F. Jason Garriott

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    Thanks for your reply, Bullitt. I'm pretty religious about maintaining the oil. 5W20, no more than 1/2 quart low at any time. Loud tick isn't localized to left or right side.
     
  4. timjimmy

    timjimmy Active Member

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    Pull the adjusters and check how much play are in them with a dial indicator. I can't remember the limits off the top of my head, but it should be an eighth or a quarter inch. I'll check my manual later today.
     
  5. F. Jason Garriott

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    Thanks, TimJimmy:
    I'm actually replacing the adjusters, and chains because it has 158,000 miles. I have all the parts. I bought roller rockers too. The big question is can I put the new roller rockers in against the old cam?
     
  6. timjimmy

    timjimmy Active Member

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    Yes. Roller rockers, followers, etc are function much different than flat tappets. Whereas flat tappets have a "break-in" period during which the lobe of the camshaft and hydraulic lifter wear each other down and harden, rollers simply act like a bearing. All that friction and wear is eliminated. Unless you can see visible damage or wear to the old cams and followers, it will work fine. If you'd like, I have a pair of cams off my '06 I'd be willing to part with. They had about 40,000 when I swapped them out.
     
  7. F. Jason Garriott

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    You're the king, TimJimmy. I suspected that was true, and thanks for the advice. I'll ponder the cams. What else have you done to the '06?
     
  8. timjimmy

    timjimmy Active Member

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    Sure thing. It has ported heads, Detroit Rockers, FRPP manifold and throttle body C&L Racer intake, Brenspeed tune, Kooks long tubes with Pypes exhaust (I may switch back to Magnaflows), a Performance Automatic 3,000 RPM torque converter, Shelby rims, lowered 2", and a chin spoiler.
     
  9. F. Jason Garriott

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    Hey, TimJimmy:
    How does the Kooks/Pypes set-up sound in the car?
    My stock car sounds better than Corvette, Viper, and most italian supercars.
    A 911 might sound marginally better.

    Please advise.
    Thanks, TimJimmy
    Jason
     
  10. timjimmy

    timjimmy Active Member

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    Keep in mind it has the aftermarket cams, but at idle it's deep and fairly loud, light throttle is smooth and even and a bit louder, cruise quiets down a bit but has some drone over 2200, and wide open gets a bit higher pitched and absolutely screams. At idle, most people compare it to an old muscle car.
     

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