Results 1 to 4 of 4

Thread: 7age clacking sound

  1. #1
    Junior Member
    Join Date
    Oct 2018
    Name
    Keegan
    State
    Missouri
    Location
    Raytown
    Country
    United States
    Posts
    2

    Default 7age clacking sound


    TO REMOVE ADS, PLEASE
    REGISTER OR SIGN IN
    Hello from the right side up part of the globe! haha

    I come to you guys on advice on what might be making a loud clacking / clucking(?) sound from what seems like the upper half of my 7age in my al12 tercel (I'll explain at the end). I just got this motor put together, and have only put about 200 miles on it, and the sound has been present that entire time. It doesnt seem to get any better, or worse, with acceleration and / or engine load. As for the parts used, they are the following:

    7afe bottom end / block / rods + pistons / head gasket
    4age blue top big port
    Stock 4age blue top cams
    4agze dizzy + intake
    Custom exhaust
    Holley sniper tbi
    Hyperpak ignition control
    7age timing sprocket
    Porsche 944 timing belt
    Tercel oil pan

    I was thinking I might have a bent valve as when I first got the head installed, my #1 cylinder had 0psi of compression, and I found out that I had an intake valve that was stuck. I gave it a few whacks with a mallet and it seemed to have sealed up. I haven't noticed any weird missing at idle / driving, so I'm not entirely sure that it is a bent valve. I am planning on pulling the motor as I am experience more oil seepage than I am comfortable with, along with a slow coolant leak on part of the water pump outlet that had to get modified to work with my car. Along with that, I will probably have the head checked out as well. I didn't originally do it as the guy I bought it from said it came off a healthy, running engine.

    Why am I posting here about my al12 tercel? I tried registering over at club4ag and toymods, and even after resending the activation emails, I still have yet to receive them :/

    I do appreciate any and all input you guys have on the matter!


  • #2
    Member
    Join Date
    Jan 2015
    Name
    Dave
    State
    Michigan
    Location
    South Lyon
    Country
    USA
    Posts
    45

    Default

    Is there any difference in the noise between a hot or cold engine. Does the frequency of the cracking noise change with RPM.
    Davew7

  • #3
    Junior Member
    Join Date
    Oct 2018
    Name
    Keegan
    State
    Missouri
    Location
    Raytown
    Country
    United States
    Posts
    2

    Default

    Quote Originally Posted by davew7 View Post
    Is there any difference in the noise between a hot or cold engine. Does the frequency of the cracking noise change with RPM.
    Davew7
    Temperature doesn't seem to make a difference (valve shims?), and the frequency does change with rpm.

  • #4
    Member
    Join Date
    Jan 2015
    Name
    Dave
    State
    Michigan
    Location
    South Lyon
    Country
    USA
    Posts
    45

    Default


    TO REMOVE ADS, PLEASE
    REGISTER OR SIGN IN
    If the noise is coming from a valve shim, you can use a screw driver against your ear, pressed against the cover try to locate the lose valve. Personally I would just pull both valve covers and verify all the shim clearances. Even engines with high mileage engine typically only need a couple shims to get everything into spec. Davew7

  • Similar Threads

    1. Replies: 22
      Last Post: 5th March 2012, 10:33 AM
    2. 7age which pistons
      By e7+20v=:) in forum Technical - Questions
      Replies: 9
      Last Post: 29th October 2010, 09:54 AM
    3. 7AGE (16v or 20v)
      By starni_boy in forum Technical - Articles
      Replies: 36
      Last Post: 4th July 2008, 12:25 AM
    4. 7AGE
      By juzzo84 in forum Technical - Questions
      Replies: 10
      Last Post: 27th December 2006, 09:17 AM

    Posting Permissions

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