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Why does my engine sound like a lawnmower?

Discussion in 'Motors' started by Wryel, 9 May 2006.

  1. Wryel

    Wise Guy

    Joined: 26 Mar 2005

    Posts: 1,663

    I'm getting that sound like a lawnmower or a really old car when accelerating - its fine at a constant speed. It seems to have started happening after the clutch was changed - is there anything I can do about it? Sorry to be so vague...
     
  2. Nathan

    Mobster

    Joined: 4 Feb 2003

    Posts: 4,645

    Location: West Midlands

    tappets? *** sort of noise is it?
     
  3. robjf

    Mobster

    Joined: 31 Oct 2003

    Posts: 4,563

    Location: Derby, UK

    Knackered airbox/filter?
     
  4. [TW]Fox

    Man of Honour

    Joined: 17 Oct 2002

    Posts: 156,862

    Crappy small displacement 4 cylinder engine?
     
  5. Sirrel Squirrel

    Sgarrista

    Joined: 5 Aug 2003

    Posts: 7,839

    Location: Essex

    My mate had this problem when the exhaust pipe detached itself from whatever part of the engine it runs into. Car sounded awesome though for a little Fiesta :D
     
  6. csmager

    Soldato

    Joined: 30 Dec 2003

    Posts: 5,770

    Location: London

    :D
     
  7. MrMatteh

    Wise Guy

    Joined: 22 Feb 2004

    Posts: 2,418

    Location: Essex

    mine does this :(

    i have a cracked manifold though. you could be lucky and just have a cracked exhaust, fairly simple/cheap to repair
     
  8. 4T5

    Man of Honour

    Joined: 30 Aug 2004

    Posts: 27,746

    Location: Middle of England

    You say you have had a recent clutch change. Did they replace the thrust bearing.
    Put your hand on top of your gear stick as you accelerate and feel for a slight rattle that goes with the noise.

    Or Exhaust, Put foot over tailpipe. Car should splutter and muffle right down.
    Or pipe off airbox Lift bonnet look.
    Or No Oil. Check level.


    Also check the shroud around the gearstick assembly. Make sure it has been refitted properly.
     
  9. Wryel

    Wise Guy

    Joined: 26 Mar 2005

    Posts: 1,663

    Thanks guys, I'll have a look. The exaust is new and the noise definitely is from the engine.

    Crappy 406 1.8 btw.
     
  10. SgtTupac

    PermaBanned

    Joined: 3 Oct 2004

    Posts: 2,859

    Location: UK

    Crap car, buy a BMW, will never break down and youll be the best driver in the world.
     
  11. [TW]Fox

    Man of Honour

    Joined: 17 Oct 2002

    Posts: 156,862

    See that shouldn't sound lawnmower like - I thought it was a 1.2 Corsa or something.
     
  12. Phantom

    Sgarrista

    Joined: 18 Oct 2002

    Posts: 9,809

    Location: Southampton, Hampshire


    aww, i associate lawnmower sounds with 1-1.2 litre engine cars. would have suggested you check to see if you had a bee or small rodent under your bonnet...

    check to see if the air intake is clear and nothing lodged in it. who did the clutch change?
     
  13. D4VE

    Sgarrista

    Joined: 23 Oct 2003

    Posts: 8,899

    Location: Hampshire, UK

    what sort of lawnmower? Flymo, petrol mower?
     
  14. Dugganator

    Wise Guy

    Joined: 7 May 2006

    Posts: 1,958

    Have you checked you spark plug and HD leads. It could be that the car is only firing on three cyclinders. I am having a problem with my car thats sound sort of the same but mine turned out to be my head gasket :mad: i did all the trouble shooting first thou. I would check the sparks,hd leads there cheap to replace and really need to be done every once in a while so its a good place to start. Good luck
     
  15. lordrobs

    Capodecina

    Joined: 30 Sep 2003

    Posts: 14,934

    Location: Norwich

    Which obviously sounds like its got a briggs & stratton under the bonnet :confused:
     
  16. Wryel

    Wise Guy

    Joined: 26 Mar 2005

    Posts: 1,663

    Was thinking of doing this actually, could I get the timing done quite cheaply as well?

    For your referrence, it sounds like a petrol mower crossed with a little bit of farting.
     
  17. Wryel

    Wise Guy

    Joined: 26 Mar 2005

    Posts: 1,663

    Ok, no idea about the thrust bearing, what does it do?
    - No vibration through the stick, a little stiff going into first sometimes.
    - I'll check the air intakes
    - Lots of oil - I'm in the habit of checking it all the time after having a Golf TD that drank the stuff for breakfast.
     
  18. Lashout_UK

    Capodecina

    Joined: 2 Mar 2004

    Posts: 11,829

    Location: SE England

    Possible leaking exhaust manifold/downpipe. :)