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Model specific boards => Golf mk3 => Topic started by: matt2602 on 30 March 2009, 19:34

Title: Uregent advice needed
Post by: matt2602 on 30 March 2009, 19:34

hi guys, ive just went to go out in my car got 200yds down the roads and the engine has suddenly started to sound like a tractor, theres a really big continuos tapping. Have the valves gone or something? checked the oil and theres oil in it. its a k reg 8v, AE engine

Title: Re: Uregent advice needed
Post by: harlemex on 31 March 2009, 14:03

sounds like big end shells to me. You need to stop driving it(if this is the case that is..) or the engine will blow completely. Shells can be replaced, biggish job tho.

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 18:21

ive stopeed driving it stopped straight away then slowly took it back to work. the noise gets louder the more revs there are, does that still sound like the shells

Title: Re: Uregent advice needed
Post by: harlemex on 31 March 2009, 18:33

I couldnt be sure without a listen whether it is shells for definate, but yes it would get louder if you rev it. Were there no other signs before this happened? Oil leaks , overheating etc?

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 19:08

no none got to work and it was fine then went to nip out at lunch at work got just down the road and then heard it so pulled over

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 19:10

what about the pistons would that make the same kind of noise?

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 19:11

Where is the tapping coming from, top or bottom of the engine?

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 19:18

from the top by the sounds of it when its getting louder, when the car is idling it shakes like anything too

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 19:21

Maby shaking indicated it is miss-firing?? Whip the spark plugs out, are any of them wet?

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 19:23

shouldnt be as its been dry for the last few days, if it was misfiring would it also make that noise?

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 19:46

No but shaking would say so.

Maby your timing belt has slipped?

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 19:58

ill pull the plugs out and give them a clean and see what happens. when you rev the car it sounds as if something is vibrating its 3 quite loud noises as soon as you rev it plus its began to have a pretty strong smell of fumes from the exhaust aswell now

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 20:09

Unburnt fuel is entering the exhaust, definitely missing. Broken cam shaft me thinks.........

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 20:15

and if its that thats going to cost a bit isnt it?

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 20:31

IF  it is then depends if you want to buy new, check scrappies. It is only an idea, only way to deff tell is to remove the rocker cover.

Title: Re: Uregent advice needed
Post by: matt2602 on 31 March 2009, 20:34

i take it you'll be able to see straight away if i take the rocker cover off? sorry not done much mechanics on cars but not shy in giving it a go

Title: Re: Uregent advice needed
Post by: Adam on 31 March 2009, 20:41

yea you would be able to see it if you looked closely at the cam.

Title: Re: Uregent advice needed
Post by: RFC84 on 31 March 2009, 20:48

i'll give that a look 2moro when it's light

Title: Re: Uregent advice needed
Post by: matt2602 on 01 April 2009, 18:59

just took the roker cover off and had a look at the cam shaft it all looks ok