Results 1 to 4 of 4

Thread: Well, I'm not really sure it's my lifters. It's a little louder than a ticking sound

  1. #1
    Administrator Feedback Score 3 (100%) Alan92RTTT's Avatar
    Join Date
    Jul 2010
    Owner Since
    02/1998

    Location
    Madison Heights, Mi
    Posts
    3,012
    Blog Entries
    7
    Thanks
    17
    Thanked 675 Times in 255 Posts

    Well, I'm not really sure it's my lifters. It's a little louder than a ticking sound

    .
    If that noise you hear is more of a clack-clack than a tick-tick, you could possibly have a spun bearing.

    Spun bearings are when the rod or main bearing spin with the rod cap/crank journal. the bearings are crescent shaped pieces of metal. (Bearing Image ) when there isn't enough oil to supply the space between the crank journal and the rod bearing/main bearing or the crank journal and the main cap the bearing will seize on the crank and follow it's rotation. This is bad for multiple reasons. the most obvious of which would be the metal shavings from the bearings as they spin in the rod cap without oil or the main cap without oil.

  2. #2
    Member verified Feedback Score 2 (100%) sergechronos's Avatar
    Join Date
    Sep 2012
    Owner Since
    2010

    Location
    Decatur, TN
    Posts
    1,678
    Blog Entries
    7
    Thanks
    57
    Thanked 71 Times in 60 Posts
    As an added thought, if it is louder than a tick, you may have a rocker arm that's popped off. It is quick and easy to check (compared to a spun bearing anyhow) by just pulling the valve covers. Obviously very serious damage can result such as tearing up camshafts, sending metal through out the engine, damaging valve springs, etc.
    Mods: 2g 3k body conversion, 2g Brake upgrade, Rota P45R rims
    Projects: Interior sound deadening, 14Bs, forged bottom end, custom radiator and sound mounts

  3. #3
    Low & Slow verified Feedback Score 1 (100%) kywhitelightning's Avatar
    Join Date
    Sep 2010
    Owner Since
    2005

    Location
    Fortson, GA
    Posts
    582
    Thanks
    25
    Thanked 39 Times in 29 Posts
    Spun bearings are waaay easier to diagnose than a thrown rocker arm.

    Step 1: Remove oil filter.

    Step 2: Cut it open and look for a pot o gold.

    Jeff

  4. #4
    Forum User Feedback Score 0
    Join Date
    Jan 2014
    Owner Since
    1996

    Posts
    11
    Thanks
    0
    Thanked 0 Times in 0 Posts
    My experience of a failed big-end bearing in a NA DOHC V6 Mitsubishi 6G72 engine:
    1) It happened very suddenly & without any warning at about 170,000 Km.
    2) The noise was really loud, almost like being in WWII next to a Vickers machine Gun.
    I don't know how unique this was or wasn't?

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
  •  
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive
Jim's (RED3KGT) Reststop
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering