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Timing Belt Shaking

Discussion in 'General Tech and Maintenance' started by Magana559, Mar 19, 2009.

  1. Magana559

    Magana559 The Warden

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    well as the title says my timing belt is shaking like mad at idle! and more at higher RPM.

    Engine is B16a block with 12.5:1 pistons and a GSR head with BC stage 3 cams.

    could it be the cams that are causing this?

    Oh and Im using a B16 timing belt from Autozone.
     
  2. RamoncilloSI

    RamoncilloSI New Member

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    cant u tighten the tensioner a bit more?
     
  3. Magana559

    Magana559 The Warden

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    Any tighter and I would be putting too much stress on the water pump.
     
  4. efhondakid

    efhondakid My name is Byron. VIP

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    Shaking? Post a vid, I wanna see exactly what your talking about.
     
  5. Magana559

    Magana559 The Warden

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    Yes sir can do, Ill Do that for you Tomorrow at about noon.
     
  6. efhondakid

    efhondakid My name is Byron. VIP

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    Im a visual person, Id like to see it you know?
     
  7. FLounder

    FLounder power hungry VIP

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    my timing belt kinda seems to shake too...i thought it was normal to shake a little :shrug:
     
  8. Magana559

    Magana559 The Warden

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    I have the video, but now i have a new problem!

    Blows smoke like crazy and compression is WAY OFF!

    #1 210 #2 180 #3 190 #4 220

    Im guessing a broken or damaged oil rings.....Thats what I get for buying the bottom end off Ebay.

    Ill post the vid in a min
     
  9. Magana559

    Magana559 The Warden

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    A llhake if fine but when It looks like its gonna jump a tooth its not good lol
     
  10. Magana559

    Magana559 The Warden

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    Sorry man Im uploading the vid now.
     
  11. Magana559

    Magana559 The Warden

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  12. FLounder

    FLounder power hungry VIP

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    yeah that is not normal lol
     
  13. nootrac22

    nootrac22 Well-Known Member VIP

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    did you adjust the tensioner pully?
     
  14. efhondakid

    efhondakid My name is Byron. VIP

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    :eek: I honestly dont know what to say, that is bad.
     
  15. Z6CRX

    Z6CRX übber ɐɾuıu etarip

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    holy crap.. off the top of my head, maybe you have the wrong belt?

    That's the only thing i can think of if your adjustment is as far as it goes.
     
  16. BrokenRex

    BrokenRex New Member

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    i agree with what Z6 just said, a B18 or B16b timing belt on a B16a block will cause the tensioner to fully adjust and not take up all the extra slack that the shorter deck height allows. if you havn't loosened the bolt for the tensioner and held pressure on the crank (counterclockwise) and retightened that bolt. do so before you try counting the teeth on that belt (mark one tooth with whiteout then count them all, if it's got 124 teeth it's for a B16a.)

    worst case scenario, the tensioner is fully tightened, the belt is from a B16a and there's still that much slop in the belt. the head and block may have been milled wayyyy too much. that's very unlikely, but that's about the only thing at that point that could cause that kind of slop.
     
  17. Magana559

    Magana559 The Warden

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    nope ot at all.

    yep We did, Tightened the shit out of it.

    yes verry bad but I now have bigger things to worry about!


    nope, Im using the B16a Timing belt, using a GSR head on a b16 block.



    Im sure I got a B16a Belt but im not sure if i want to get another one because I first have to re-ring the block.
     
  18. boostin4fun

    boostin4fun Boosted ls/vtec ohh yeah!

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    The factory tensioner does kind of a weak job putting tension on the belt. What I do is first I install the belt and turn it over a couple times to verify my marks are lining up. Then I rotate the engine so the cams just move past the 12 oclock mark, this is when the tensioner should start applying tension. Then I put the crank pully on and take a pry bar, and pry up slightly on the tensioner between the crank pulley and the tensioner, while tightening the tensioner bolt. This way you can get a little more tension on the belt. I have dont it this way for years now and it has worked great for me. It takes out that slop you feel in the belt when the cams are at 12 oclock. I say fuck worrying about the extra tension on the water pump. I rather have a decently tight belt, then get too concerned about that.
     
  19. efhondakid

    efhondakid My name is Byron. VIP

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    ^ :werd: A tight belt wont wear out the WP.
     
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