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    Thread: Timing Chain FAIL

    1. Junior Member
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      07-09-2012 11:12 AM #1
      Not a huge fail but I just finished the Timing chain DIY and everythings back together and the car starts up and runs fine, drives great through first and second gear but once I get above 30mph the engine starts reving high and going no where. Seems as though I might be half a tooth off on my chain install but I just want to get some expert advice to confirm that before I perform surgery again.

      FYI - I installed a 80k mileage tranny about 5 month ago that ran 100% perfect prior to this install so I know its not the trans.

      Car is a 1999.5 Jetta VR6 with 140k on it.

    2. Member Philip J. Fry's Avatar
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      07-09-2012 11:14 AM #2
      When was the last time you checked/cleaned your throttle body?
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      07-09-2012 11:22 AM #3
      Quote Originally Posted by Philip J. Fry View Post
      When was the last time you checked/cleaned your throttle body?
      Did that when I did the chain ironically. I cleaned it totally spotless.

    4. Member Philip J. Fry's Avatar
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      07-09-2012 11:41 AM #4
      Quote Originally Posted by Mattb22006 View Post
      Did that when I did the chain ironically. I cleaned it totally spotless.
      Hmm... if you turn the crank by hand, does everything seem right?
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      07-09-2012 11:59 AM #5
      Yeah I quadruple checked all the timing marks and rotated the crank two rotations and slid the cam locker in, then did that procedure again.

      I did however come across an anomaly when doing my chain, the crank pulley marking did not line up when the crank tooth did. Originally I have timed the engine to the crank pulley and tested the rotation and that failed. I then read on here to always go by the crank tooth so I changed the timing to match the crank tooth. Which is when I successfully got 4 rotations out of the crank (which is hard to accurately do without the crank pulley timing mark.

      I think it might be a simple matter of where I had the slack in the chains....

      Also like I said, the car runs/idles no problem. Its sound the same as it did before I did the timing chain. (My chain was not destroyed nor was making alot of visible noise. Just sounded like the chain was loosing tension and rattling the motor) Plus the mileage, it needed to be done anyway because the upper guide was cracked but not broken.

    6. Member Soundwave_vr6's Avatar
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      07-09-2012 12:14 PM #6
      Quote Originally Posted by Mattb22006 View Post
      Not a huge fail but I just finished the Timing chain DIY and everythings back together and the car starts up and runs fine, drives great through first and second gear but once I get above 30mph the engine starts reving high and going no where. Seems as though I might be half a tooth off on my chain install but I just want to get some expert advice to confirm that before I perform surgery again.

      FYI - I installed a 80k mileage tranny about 5 month ago that ran 100% perfect prior to this install so I know its not the trans.

      Car is a 1999.5 Jetta VR6 with 140k on it.

      this screams clutch.
      Quote Originally Posted by Banana.Phone View Post
      mk4 kids are on their own. Remember, you guys ruined the scene.

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      07-09-2012 12:16 PM #7
      How so>? I mean I did have to remove the tranny to get at the chain so its possible I reinstalled something incorrectly but its a brand new flywheel, clutch, and a tranny with 80k miles on it that worked perfectly one week ago....

    8. Member Philip J. Fry's Avatar
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      07-09-2012 12:18 PM #8
      Yeah, unfortunately at this point, I'd say take it back apart and see what it looks like. I don't know enough about clutches to speak on a possible clutch issue.
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      07-09-2012 12:19 PM #9
      maybe some oil or some **** got on the clutch?
      Quote Originally Posted by Banana.Phone View Post
      mk4 kids are on their own. Remember, you guys ruined the scene.

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      07-09-2012 12:23 PM #10
      Well I have to take the **** apart anyway so I will investigate, but I did spray it down with brake parts cleaner. I guess I just don't understand how it would be possible for the clutch to work at low speeds then just stop working around 30 mph. Theoretically I shouldn't be able to engage the clutch at all because of slippage if that were the problem?

    11. Member Soundwave_vr6's Avatar
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      07-09-2012 12:27 PM #11
      yeah,more load in 3rd. but same goes for timing , if its off it should be off no matter what gear you are in.


      post in the 12v tech forum, might have more luck
      Quote Originally Posted by Banana.Phone View Post
      mk4 kids are on their own. Remember, you guys ruined the scene.

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      07-09-2012 12:35 PM #12
      I'll give it a shot. See if I can get some answers.

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      07-09-2012 01:28 PM #13
      take a video of this happening.. sounds fishy.

      I can not visualize any reason why your timing being off one tooth would cause your car to rev up and not further accelerate

      sounds like a clutch problem to me
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      07-09-2012 02:18 PM #14
      All this talk of oil being on the clutch/flywheel tickled my memory and now I remember loosing the thermostat housing and coolant dumping everywhere. Bet some of it got it there....

    15. Member BornBlue82's Avatar
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      07-09-2012 03:38 PM #15
      Quote Originally Posted by Mattb22006 View Post
      All this talk of oil being on the clutch/flywheel tickled my memory and now I remember loosing the thermostat housing and coolant dumping everywhere. Bet some of it got it there....
      Not Good...

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      07-09-2012 03:42 PM #16
      Quote Originally Posted by BornBlue82 View Post
      Not Good...
      Seems like more of a PITA to me, I've pulled that tranny out about 4 times now so its becoming really easy to do!

    17. Member BornBlue82's Avatar
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      07-09-2012 03:57 PM #17
      I believe you... Atleast you know what your up against.. Keep us posted as you find the problem.

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      07-09-2012 04:11 PM #18
      Now here a possibly stupid hypothetical question, would it burn off it I drove it? I'm going to take it for one more test drive today to verify that the slippage is infact the issue.

      Or would I be doing more damage than its worth?

    19. 07-09-2012 04:47 PM #19
      Quote Originally Posted by Mattb22006 View Post
      Now here a possibly stupid hypothetical question, would it burn off it I drove it? I'm going to take it for one more test drive today to verify that the slippage is infact the issue.

      Or would I be doing more damage than its worth?
      can't really 'burn' liquid off something unless it's really high temp. does it even get that hot in there? i think you'd be better off taking it apart as much of a pain in the ass it is. just imo though.

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      07-09-2012 04:50 PM #20
      Well the only reason I say that is because coolant never got onto the clutch, it got on the flywheel, which I coated in brake parts cleaner prior to installing the clutch and flywheel back in. Not sure if some residue could be making it slip. Everything I'm reading online though says I need a new clutch if it got coolant on it........

    21. Member REVoKED DuB's Avatar
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      07-09-2012 04:56 PM #21
      i had the same problem when i swapped o2o's on an old mk3, after dealing with it for two weeks eventually the clutch began to act normal

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      07-09-2012 04:57 PM #22
      Quote Originally Posted by REVoKED DuB View Post
      i had the same problem when i swapped o2o's on an old mk3, after dealing with it for two weeks eventually the clutch began to act normal
      Thats reassuring, basically just drive the **** out of it and hope if goes away. If it doesnt then I'll pull her apart.

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      07-09-2012 05:03 PM #23
      Quote Originally Posted by Mattb22006 View Post
      Thats reassuring, basically just drive the **** out of it and hope if goes away. If it doesnt then I'll pull her apart.

      thats what i did... didnt feel like repulling the trans on the side of a city street

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      07-09-2012 05:05 PM #24
      Quote Originally Posted by REVoKED DuB View Post
      thats what i did... didnt feel like repulling the trans on the side of a city street
      Don't blame you on that one!! I'll give her a good drive today and test out all the gears. See what happens.

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      07-09-2012 06:47 PM #25
      Just gave her a test drive and I am not having that problem at all anymore. No slippage whatsoever. When I laid into the gas a bit though at a left corner I heard some rattling. Sounded like timing chain noise......?? Could have been something else. I also have a serious coolant leak somewhere so thats going to postpone any further test drives until I get that fixed.

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      07-09-2012 06:54 PM #26
      well fix that and take some video.


      you ever change the shift rod bushings? maybe your chains are quiet now so you can hear new noises.
      Quote Originally Posted by Banana.Phone View Post
      mk4 kids are on their own. Remember, you guys ruined the scene.

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      07-09-2012 07:04 PM #27
      crackpipe is most likely leaking
      99 mk4 vr6

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      07-09-2012 08:24 PM #28
      Quote Originally Posted by Soundwave_vr6 View Post
      well fix that and take some video.


      you ever change the shift rod bushings? maybe your chains are quiet now so you can hear new noises.
      Is that the flappy thing in the intake manifold, if so then yes it has been replaced.




      Quote Originally Posted by steakinator View Post
      crackpipe is most likely leaking
      Thats probrably why its leaking because I just changed it when I did the timing chain. Probly a hose I put on ****ty.

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      07-09-2012 10:39 PM #29
      just to eliminate the clutch as a possible problem I would test to see if it's slipping. Park the car, set the brake, put in second gear and release the clutch without giving any gas. If the engine stalls your not slipping, if it continues to run then it is. Just my 2 cents hope it helps
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      07-10-2012 09:02 AM #30
      Quote Originally Posted by mkivdubbin View Post
      just to eliminate the clutch as a possible problem I would test to see if it's slipping. Park the car, set the brake, put in second gear and release the clutch without giving any gas. If the engine stalls your not slipping, if it continues to run then it is. Just my 2 cents hope it helps
      Thanks I'll give that a try once I get the coolant leak fixed. I think its a cracked hose pissing everywhere because the coolant was all over the engine compartment but none really on the ground pooling. Just means to me that pressure is forcing it out, not necessarily a dripping leak somewhere.
      Last edited by Mattb22006; 07-10-2012 at 12:30 PM.

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      07-10-2012 08:52 PM #31
      I took a video of the noises my ****s making, I've already begun disassembly to retime the timing chain, but here it is.

      http://www.youtube.com/watch?v=wqAQAtjxtYM&feature=plcp

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      07-10-2012 09:52 PM #32
      Quote Originally Posted by Mattb22006 View Post
      I took a video of the noises my ****s making, I've already begun disassembly to retime the timing chain, but here it is.

      http://www.youtube.com/watch?v=wqAQAtjxtYM&feature=plcp
      **** sounds like a lawn mower, how about that plastic intake runner?
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      07-11-2012 08:50 AM #33
      What plastic intake runner?

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      07-14-2012 07:33 PM #34
      Update - so I finished tearing the car apart again today and Quadruple verified the timing was right one and it was. I tighted up the lower tensioner on notch and bled the upper tensioner perfectly. However I am experiencing the same noise.

      My thoughts at this point are that its the shifter rod. I only experience this rattling noise at upper RPMS, however does anyone know if the shifter rod can cause the car to struggle to idle? My car is very slightly puttering. Let me know your thoughts.

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      07-15-2012 09:02 AM #35
      The car will run without the shifter rod. Pull the end cap off with the actuator and remove it, then reinstall the cap. Take it for a ride and see what it sounds like.

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