RS200 Internal Engine Light Ticking - Suspected Crankshaft Bearing

Discussion in 'Engine, Gearbox, Exhaust and Air Intake' started by EvoClio, Mar 14, 2019.

  1. EvoClio

    EvoClio

    Messages:
    24
    Car:
    Clio RS200 CUP MK3
    Hi All,

    The car was recently in the garage for a replacement O2 sensor, I noticed a very light ticking noise develop over the last 1000 miles (LH Side Engine Bay). When I drive the car, the ticking is in sync with the revs and is mostly noticeable around 1500-2000 revs.

    The garage also noticed this and have advised me that it was likely engine internals - Suspected Big End Bearing/Crankshaft.

    I've been driving it for 1000 miles or so, it doesn't appear to have developed any louder.

    Purchasing a replacement engine will likely be expensive, plus labour to swap.
    Stripping the current engine and rebuild I suspect will also be relatively expensive?

    Any thoughts or suggestions, not sure what to do/think next...
     

  2. Foxspeed

    Foxspeed "the new red baron" Moderator

    Messages:
    15,622
    Location:
    sat behind a laptop over-moderating...
    Car:
    ford mustang shadow gt v8
    have you check the exhaust manifold they can crack & cause a leak sometimes like a sort of tick...

    big ends/cranks dont tick

    camshaft or hydraulic lifters "tick" along with injectors...

    you need to investigate before jumping to a new engine conclusion as you says it has not got worse
     
    Sean197 and Beany like this.
  3. petercronin

    petercronin Paid Member

    Messages:
    502
    Location:
    North East England
    Car:
    LY FF Clio 200 with Cup Pack
    Might be worth checking the condition of the aux belt too, a quick visual check should do. If you’ve got small ish mirror and torch you could probably do it from the top of the engine bay.

    A while ago mine had a strange ticking/tapping in sync with revs and it was only audible at low rpm, the aux belt was a little perished and missing a few bits. Changed the belt noise was gone.
     
  4. petercronin

    petercronin Paid Member

    Messages:
    502
    Location:
    North East England
    Car:
    LY FF Clio 200 with Cup Pack
    Actually just seen you said LH side of the bay, maybe forget what I said then. Unless you’re talking LH side when in front of the car?
     
  5. Foxspeed

    Foxspeed "the new red baron" Moderator

    Messages:
    15,622
    Location:
    sat behind a laptop over-moderating...
    Car:
    ford mustang shadow gt v8
    check this!
     

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