Page 1 of 2 12 LastLast
Results 1 to 20 of 22

valvetrain help?!?

This is a discussion on valvetrain help?!? within the Internal Engine forums, part of the LSx Technical Help Section category; alright guys i need some help and info was be great. last month or so i noticed my car started ...

  1. #1
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    valvetrain help?!?

    alright guys i need some help and info was be great. last month or so i noticed my car started a light ticking noise coming from my driver side valve cover, when the rpm's increased the ticking was go faster. i was told by a good buddy of mine that its a great chance that one of the rockers could have gotten loose. after that i have not driven the car much. well today we decided to get some work done and tighten the rockers (drivers side), we tightened them to 22 ft lbs and hoped for the best but when we got everything back together and started her up she sounded the same. what does everyone think??? is it ok to drive on not beating on it??
    -Half Throttle Racing-

  2. #2
    Member Bouvers's Avatar
    Join Date
    May 2006
    Location
    Canada
    Age
    31
    Posts
    857

    Blue 1997 Trans Am(Sold)
    Pewter 2001 Trans Am Vert

    I'm certainly no expert so I'm just going to take a swing at this... bent pushrod? not making proper swipes and thereby putting sloppy tolorences in your valvetrain?...

    I'm interested to see how this resolves...

  3. #3
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    anyone else have some ideas?

  4. #4
    The Bandit Wesman's Avatar
    Join Date
    Apr 2006
    Location
    NJ
    Posts
    4,033

    SGM
    1998 Trans Am WS6

    Bent pushrods or bad lifter.

    Pull the pushrods out one by one and roll them accross a glass table. If they flop over as you roll them, they are bent, theres your problem.

    If they are straight, it may be a noisy lifter. Does the noise only come from one side of the engine, or both??

    And also, do you have headers??

  5. #5
    caraholic ggino85's Avatar
    Join Date
    Jul 2007
    Location
    most miserable city in the US
    Age
    32
    Posts
    568

    blue green chameleon
    1998 Trans Am

    anyone know wat 22 ft/lbs is in inch/lbs???

  6. #6
    Senior Member Bottesini's Avatar
    Join Date
    Sep 2007
    Location
    Denton, Texas soon Lafayette, Louisiana
    Posts
    2,955

    Blue
    2002 Z28 Camaro M6

    Quote Originally Posted by ggino85 View Post
    anyone know wat 22 ft/lbs is in inch/lbs???
    Pretty sure that is 22 ft/lbs * 12 = 264 in/lbs

  7. #7
    Member
    Join Date
    Oct 2005
    Location
    RI
    Posts
    165

    Mag Red
    2002 Vette


  8. #8
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    Quote Originally Posted by Wesman View Post
    Bent pushrods or bad lifter.

    Pull the pushrods out one by one and roll them accross a glass table. If they flop over as you roll them, they are bent, theres your problem.

    If they are straight, it may be a noisy lifter. Does the noise only come from one side of the engine, or both??

    And also, do you have headers??
    it only comes from the driver side of the motor, and as far as exhaust i have the stock headers on w/ slp catback

  9. #9
    Senior Member TransAm11973's Avatar
    Join Date
    Nov 2007
    Location
    in my Trans Am
    Posts
    2,630

    Black
    2000 Trans Am WS6

    Quote Originally Posted by Wesman View Post
    Bent pushrods or bad lifter.

    Pull the pushrods out one by one and roll them accross a glass table. If they flop over as you roll them, they are bent, theres your problem.

    If they are straight, it may be a noisy lifter. Does the noise only come from one side of the engine, or both??

    And also, do you have headers??

  10. #10
    Junior Member
    Join Date
    Jun 2008
    Location
    Texas, USA
    Posts
    63

    Pewter
    2000 Camaro

    there may be something sticking more than it should mainly the valvespring which would cause you lifter or lifters to float and chatter on the cam

    just a guess if its not your pushrods or lifters

  11. #11
    Simpsons Did it!! 98formy's Avatar
    Join Date
    Mar 2007
    Location
    Minnesota
    Age
    36
    Posts
    596

    83 Z28 new project
    98 Formula WS7-sold:(

    I had the roller bearings come out of one of my rockers on one side and that caused a ticking noise because it was not sitting leveel anymore. It also caused a collapdes lifter later down the road and had to fix that as well.

  12. #12
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    if its a bent push rod or bad lifter is it bad to drive it?? not that i do much

  13. #13
    Junior Member
    Join Date
    Jun 2008
    Location
    Texas, USA
    Posts
    63

    Pewter
    2000 Camaro

    Quote Originally Posted by WSICK View Post
    if its a bent push rod or bad lifter is it bad to drive it?? not that i do much
    it would most likely affect the performance of your engine

  14. #14
    Senior Member Z28Thunder's Avatar
    Join Date
    Dec 2006
    Location
    Broken Arrow, Ok
    Age
    52
    Posts
    4,542

    Arctic White
    2000 Z28

    Quote Originally Posted by WSICK View Post
    if its a bent push rod or bad lifter is it bad to drive it?? not that i do much

    While you could drive it I personally would look into it or fix it. Either could fail to a point where the valve is in a down position. That could create alot more damage.

  15. #15
    The Bandit Wesman's Avatar
    Join Date
    Apr 2006
    Location
    NJ
    Posts
    4,033

    SGM
    1998 Trans Am WS6

    Quote Originally Posted by WSICK View Post
    if its a bent push rod or bad lifter is it bad to drive it?? not that i do much
    If the pushrod is bent very badly (unlikely based on what you described) it could contact the sides of the pushrod guide hole and damage the block. A bad lifter can prevent the valve from fully opening, as can a bent pushrod, negatively affecting engine performance and efficiency.

  16. #16
    The Bandit Wesman's Avatar
    Join Date
    Apr 2006
    Location
    NJ
    Posts
    4,033

    SGM
    1998 Trans Am WS6

    Quote Originally Posted by WSICK View Post
    it only comes from the driver side of the motor, and as far as exhaust i have the stock headers on w/ slp catback
    Definitely sound like valvetrain noise then, since its only on the drivers side. There is probably something wrong if you can hear the noise with stock manifolds as well, headers tend to make small valvetrain noises more apparent since they have thinner tubing walls and are longer.

  17. #17
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    so then theres a possibility that one of my rockers are not sitting correctly???

  18. #18
    Member
    Join Date
    Oct 2005
    Location
    RI
    Posts
    165

    Mag Red
    2002 Vette

    If the rocker loses some bearings, it will be sloppy and make noise. I would pull the valve covers and looks for signs that a rocker has a problem. There is a GM TSB on this and it is a known problem. Check known and simple things first, don't immediately jump to "bad lifter".

  19. #19
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    i plan on pulling some of the rockers this weekend just to check them to see if there messed up, is it possible that i can just order some EOM rockers???

  20. #20
    Junior Member WSICK's Avatar
    Join Date
    Feb 2008
    Location
    wood dale, il
    Posts
    97

    white
    1998 WS6 M6

    found out that i can get EOM rockers for $14 each not bad, im prob. gonna end up painting my valve covers while there off, car is white what color should i paint them??

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. pushrods and valvetrain
    By vortex1369 in forum Internal Engine
    Replies: 7
    Last Post: 04-01-2012, 03:29 PM
  2. Ls6 cam n valvetrain
    By 69PONTIAC in forum Parts Wanted / Trade
    Replies: 0
    Last Post: 04-04-2010, 01:24 AM
  3. It's Not the Valvetrain... What Else?
    By Sizzlenut in forum Internal Engine
    Replies: 11
    Last Post: 02-04-2008, 09:26 AM
  4. Valvetrain
    By apollyon_01 in forum Internal Engine
    Replies: 2
    Last Post: 12-19-2007, 05:53 AM
  5. C5 Valvetrain
    By apss in forum Parts For Sale / Trade
    Replies: 0
    Last Post: 01-10-2007, 11:30 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •