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Model specific boards => Golf mk2 => Topic started by: apie2004 on 10 December 2010, 14:04

Title: Weird knocking
Post by: apie2004 on 10 December 2010, 14:04
As described above, my mk2 makes a weird knocking when accelerating hard and coming off the throttle hard. Any ideas?

Cheers

J
Title: Re: Weird knocking
Post by: rob.043 on 10 December 2010, 14:12
The prostitute in the boot isnt dead.
Title: Re: Weird knocking
Post by: rob.043 on 10 December 2010, 14:15
Where abouts is the noise coming from, front, rear, under the bonnet? Can you be more descriptive, is it a dull thud or more metallic and clinky? Of course all the se questions mean i have no idea! What engine do you have (not that it makes much difference)?
Title: Re: Weird knocking
Post by: apie2004 on 10 December 2010, 14:41
Under the bonnet, sounds likes its not far from my left foot (I think) its  like a metallic knock but it doesnt happen all the time.it's an 8v gti
Title: Re: Weird knocking
Post by: Ben Lessani on 10 December 2010, 14:49
The prostitute in the boot isnt dead.

lmfao :D :D :D

Quote from: Meeeeeeeeeeeeeeeeee
Knocking at the front could be a few things. Make sure the suspension strut bolts are tight, all 4 ball joint bolts, wheel nuts and hub nut.

Track rod ends
When you hear a knock when wiggling the steering wheel when stationary. If the car is jacked up, its not as obvious to find.

Wheel bearing
Turn a corner at speed (40 mph), if you are turning left and you hear a noise - its the right wheel bearing, turning right and its your left wheel bearing.

Jack the car up, grab it left and right and wiggle it and check for play. If there's play and a noise as above, odds are its a wheel bearing.


Ball Joint
Grab the wheel top and bottom and wiggle, have a friend with a torch look at the ball joint when wiggling and the play is pretty obvious.

CV Joint
Knocking/grinding at low speeds

Top Mounts
No idea, I guess I'd find out by process of elimination from the above?
Title: Re: Weird knocking
Post by: Sam on 10 December 2010, 14:52
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:
Title: Re: Weird knocking
Post by: apie2004 on 10 December 2010, 14:58
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:

It feels like its more suspension/drive shaft (cvs etc) to me. I am changing wishbones, ball joints and track rod ends this weekend anyway, that will narrow it down.

Cheers Guys
Title: Re: Weird knocking
Post by: lewis1641 on 10 December 2010, 15:33
could be engibne mounts if it happens under braking/acceleration
Title: Re: Weird knocking
Post by: clipperjay on 10 December 2010, 15:41
Nah I prefer the dead prostitute! Not that they aren't all dead inside anyways  :lipsrsealed:
Title: Re: Weird knocking
Post by: Sam on 10 December 2010, 16:07
I had the same, ended up with the big end sh!tting itself  :cry: do yourself a favour this weekend and do an oil change but take off the sump and check for little bits of metal. If there are any stop driving and if you know what your doing get stripping or if not get her to a garage. If there aren't it has only cost you £25 max in oil and a bit of your time where if your big end fails its new engine time  :undecided:

It feels like its more suspension/drive shaft (cvs etc) to me. I am changing wishbones, ball joints and track rod ends this weekend anyway, that will narrow it down.

Cheers Guys


Yer no worries dude, i pretty much looked at everything but because the engine had just had a re-build
Title: Re: Weird knocking
Post by: The Mighty Elvi on 10 December 2010, 16:12
I have someting similar.

Its a loud rhumble from both wheels, but strangely it disappears when turning the steering wheel a few degrees and when i go over bumps in the road at speed.

Is that my CV joints and/or wheel bearings?

Title: Re: Weird knocking
Post by: Ben Lessani on 10 December 2010, 16:14
Quote from: Meeeeeeeeeeeeeeeeee
Knocking at the front could be a few things. Make sure the suspension strut bolts are tight, all 4 ball joint bolts, wheel nuts and hub nut.

Track rod ends
When you hear a knock when wiggling the steering wheel when stationary. If the car is jacked up, its not as obvious to find.

Wheel bearing
Turn a corner at speed (40 mph), if you are turning left and you hear a noise - its the right wheel bearing, turning right and its your left wheel bearing.

Jack the car up, grab it left and right and wiggle it and check for play. If there's play and a noise as above, odds are its a wheel bearing.


Ball Joint
Grab the wheel top and bottom and wiggle, have a friend with a torch look at the ball joint when wiggling and the play is pretty obvious.

CV Joint
Knocking/grinding at low speeds

Top Mounts
No idea, I guess I'd find out by process of elimination from the above?
Title: Re: Weird knocking
Post by: apie2004 on 10 December 2010, 16:41
could be engibne mounts if it happens under braking/acceleration

I thought that but I renewed them fairly recently (about 4k ago)
Title: Re: Weird knocking
Post by: lemski on 11 December 2010, 17:05
Mine does it but its a wishbone bush on mine.
Title: Re: Weird knocking
Post by: apie2004 on 12 December 2010, 01:10
Had a go at changing the wishbones today and I tried undoing the bolt furthest back on the wishbone and it just spins? Is there a nut on the chassis thats broken/ do I have to put something on the other end of the bolt, where is it?

Cheers

J
Title: Re: Weird knocking
Post by: messenjah on 12 December 2010, 02:40
check your wheel nuts !!!!

Title: Re: Weird knocking
Post by: danny_p on 12 December 2010, 03:04
Had a go at changing the wishbones today and I tried undoing the bolt furthest back on the wishbone and it just spins? Is there a nut on the chassis thats broken/ do I have to put something on the other end of the bolt, where is it?

Cheers

J

unluck the captive nut has broken free    there is cutting and welding involved in fixing that
Title: Re: Weird knocking
Post by: lemski on 12 December 2010, 08:11
The wishbone attatches to the subframe? There's 2 bolts with nuts on the end
Title: Re: Weird knocking
Post by: apie2004 on 12 December 2010, 12:08
Had a go at changing the wishbones today and I tried undoing the bolt furthest back on the wishbone and it just spins? Is there a nut on the chassis thats broken/ do I have to put something on the other end of the bolt, where is it?

Cheers

J

unluck the captive nut has broken free    there is cutting and welding involved in fixing that

Excellent