Page 2 of 2 FirstFirst 12
Results 13 to 21 of 21

Thread: Vibration at idle under load

  1. Top | #13
    Senior Citizen Member
    Array Sparkey's Avatar
    Join Date
    Apr 2010
    Last Online
    05-30-2016 @ 04:30 PM
    Location
    Rochester, NY
    Âge
    32
    Posts
    437
    Thanks
    1
    Thanked 7 Times in 7 Posts
    On side of the motor opposite the transmission (below your motor mount) is a cover for both the timing chain and the water pump/balanced shaft chain. I have only removed those covers on Cavaliers/SunFires which is pretty easy, just have to remove some plastic to get at it. It is not really major surgery to get in to check it. I don't know off hand where the timing of the shafts is supposed to be, but a Haynes manual or equiv should have that info. I don't have mine handy or I would check.

  2. Top | #14
    Forum Newbie
    Array 70mstang's Avatar
    Join Date
    Jan 2015
    Last Online
    01-13-2018 @ 09:37 AM
    Posts
    15
    Thanks
    0
    Thanked 1 Time in 1 Post
    On side of the motor opposite the transmission (below your motor mount) is a cover for both the timing chain and the water pump/balanced shaft chain. I have only removed those covers on Cavaliers/SunFires which is pretty easy, just have to remove some plastic to get at it. It is not really major surgery to get in to check it. I don't know off hand where the timing of the shafts is supposed to be, but a Haynes manual or equiv should have that info. I don't have mine handy or I would check.
    Sparkey Quoted Post
    Wait, if that was the case, wouldn't the vibration get worse with higher rpm's?

  3. Top | #15
    Crazy Moderator
    Array Cinpro's Avatar
    Join Date
    Apr 2006
    Last Online
    04-29-2016 @ 10:03 PM
    Location
    Hurricane WV
    Âge
    46
    Posts
    3,267
    Thanks
    1
    Thanked 43 Times in 43 Posts
    No, because the the vibrations would become resonate and cancel each other out for the most part.

    I had a balance shaft delete on my last motor, you couldn't leave anything on the dash at idle. It was smooth as butter above 1500-2000 rpm, and that is with solid motor mounts, and a heavy duty trans mount.
    http://i11.photobucket.com/albums/a174/Cinpro/jokercopy2.jpg

    It's not what you buy,it's what you build!

  4. Top | #16
    Forum Participator
    Array 2.2 sat n urn ion's Avatar
    Join Date
    Jan 2015
    Last Online
    12-17-2017 @ 11:49 AM
    Posts
    37
    Thanks
    8
    Thanked 0 Times in 0 Posts
    there's 184000 miles on it, so I wouldn't be surprised if that was the problem, how do I check on the chain, is there an inspection plate somewhere I can remove? I might just pony up the money and have the dealer do it if it's too big a job for my toolset.
    70mstang Quoted Post
    I would agree that if the mounts weren't bad, then I might lean toward the balance shaft (b.s.) chain / tensioner. I believe you've got to take the timing cover off to make both the timing and the b.s. chain visible. balance shaft chains can only be removed with the engine out of the car from what I understand. The only other things I can think of is if the car would have a misfire, which would throw a code, or the car got overheated and things are warped.

  5. Top | #17
    Senior Citizen Member
    Array Sparkey's Avatar
    Join Date
    Apr 2010
    Last Online
    05-30-2016 @ 04:30 PM
    Location
    Rochester, NY
    Âge
    32
    Posts
    437
    Thanks
    1
    Thanked 7 Times in 7 Posts
    The balanced shaft chain can be removed without removing the motor, I don't believe there is enough room to remove the balanced shafts though (not relevant unless you want to swap to neutral balance shafts) without lowing the motor.

  6. Top | #18
    Forum Participator
    Array 2.2 sat n urn ion's Avatar
    Join Date
    Jan 2015
    Last Online
    12-17-2017 @ 11:49 AM
    Posts
    37
    Thanks
    8
    Thanked 0 Times in 0 Posts
    Listen to Sparkey. I'm a greenhorn.

  7. Top | #19
    Forum Newbie
    Array 70mstang's Avatar
    Join Date
    Jan 2015
    Last Online
    01-13-2018 @ 09:37 AM
    Posts
    15
    Thanks
    0
    Thanked 1 Time in 1 Post
    yikes, my first adventure with timing chains, wish me luck...

  8. Top | #20
    Forum Participator
    Array 2.2 sat n urn ion's Avatar
    Join Date
    Jan 2015
    Last Online
    12-17-2017 @ 11:49 AM
    Posts
    37
    Thanks
    8
    Thanked 0 Times in 0 Posts
    yikes, my first adventure with timing chains, wish me luck...
    70mstang Quoted Post
    Good luck. However, I would make sure it wasn't something else before you start tearing apart your timing cover.. that's not a lot of fun to do.. I had a 1985 Grand Marquis and I knew my timing chain was cooked... Took me a long time to put it back together correctly... and that was an easy block to work on with plenty of room.
    Last edited by 2.2 sat n urn ion; 01-29-2015 at 03:50 PM.

  9. Top | #21
    Forum Newbie
    Array maliboo's Avatar
    Join Date
    Dec 2016
    Last Online
    12-23-2016 @ 03:54 AM
    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Im thinking its something to do with an accessory on the serpentine belt line, or a vacum line to the brake booster, or engine itself.

Page 2 of 2 FirstFirst 12

Tags for this Thread

Posting Permissions

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