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Non turbo, sounds like turbo? Is it normal? (mx5)

  • 19-07-2009 6:00pm
    #1
    ShadowHearth
    Registered Users, Registered Users 2 Posts: 22,929 ✭✭✭✭


    so i got mx5 1.8, and dont know if its normal?

    When i rev it it just goes with whistle from 3-4k and above...

    Maybe its just wind noises... But it looks like it comes from revs...


Comments

  • #2
    peasant
    Registered Users, Registered Users 2 Posts: 17,819 ✭✭✭✭peasant


    possibly a bearing on its way out ...water pump, alternator, pas or ac pump


  • #3
    mamakevf
    Registered Users, Registered Users 2 Posts: 254 ✭✭mamakevf


    Try disconecting the alternator belt and start the car and see if the noise dissappears.


  • #4
    peasant
    Registered Users, Registered Users 2 Posts: 17,819 ✭✭✭✭peasant


    mamakevf wrote: »
    Try disconecting the alternator belt and start the car and see if the noise dissappears.

    but make sure the same belt doesn't drive the water pump as well :D


  • #5
    mamakevf
    Registered Users, Registered Users 2 Posts: 254 ✭✭mamakevf


    peasant wrote: »
    but make sure the same belt doesn't drive the water pump as well :D
    It could be the water pump thats the problem


  • #6
    Alun
    Registered Users, Registered Users 2 Posts: 21,487 ✭✭✭✭Alun


    Whilst the standard MX-5 does not have a turbo, it's a common enough aftermarket add-on, especially amongst enthusiasts.


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  • #7
    ShadowHearth
    Registered Users, Registered Users 2 Posts: 22,929 ✭✭✭✭ShadowHearth


    Well when i reving it parked i dont hear a thing... Just normal engine noise...


  • #8
    mamakevf
    Registered Users, Registered Users 2 Posts: 254 ✭✭mamakevf


    peasant wrote: »
    that may well be ...but run the engine for a while without water circulating and you've got a whole lot more trouble
    Of course, it would only be a few seconds to assertain if the noise is coming from something running off the belt.
    If it was, all the parts running off the belt would have to be examined in turn to find the offending item.(with the engine switched off, of course)


  • #9
    ShadowHearth
    Registered Users, Registered Users 2 Posts: 22,929 ✭✭✭✭ShadowHearth


    Sorry, i am a bit confused there. So its defenetly an item from a belt section.

    Can i still drive the car untill i get to mechanic, or am i pushing it?


  • #10
    Mr Benevolent
    Closed Accounts Posts: 12,456 ✭✭✭✭Mr Benevolent


    ShadowHearth wrote: »
    Sorry, i am a bit confused there. So its defenetly an item from a belt section.

    It might not be.
    Well when i reving it parked i dont hear a thing... Just normal engine noise...

    The belt accessories still spin with the engine when you rev it in neutral so it's probably not one of those. It should be ok to drive until you get to a garage. Sounds like a wheel bearing or something.


  • #11
    ShadowHearth
    Registered Users, Registered Users 2 Posts: 22,929 ✭✭✭✭ShadowHearth


    Confab wrote: »
    It might not be.



    The belt accessories still spin with the engine when you rev it in neutral so it's probably not one of those. It should be ok to drive until you get to a garage. Sounds like a wheel bearing or something.

    yeah i got confised there aswell... no sound while revving it parked, so how it could be engine bits...

    Does sound like bearing, but is it this?http://www.mx5parts.co.uk/product_info.php/products_id/314


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  • #12
    Ferris
    Registered Users, Registered Users 2 Posts: 2,290 ✭✭✭Ferris


    Wasn't the mx-5 designed to make the same diff whine as an MGB?


  • #13
    ShadowHearth
    Registered Users, Registered Users 2 Posts: 22,929 ✭✭✭✭ShadowHearth


    good point.. i actuall read on this somewhere....

    Ill be going to mechanic on wensday, ill ask him to check it out


  • #14
    vw4life
    Registered Users, Registered Users 2 Posts: 285 ✭✭vw4life


    sounds like the exhaust or cat is blocked,seen it a few times on them,cat breaks up,blocks the exhaust and u get a load whooosh noise from a joint/connection in the exhaust system while driving


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