Strange knock

Barnsley BXer · Post by **Barnsley BXer** » Thu Jun 14, 2007 9:42 pm

Car started knocking from nearside front suspenion area this morning.Sounded like a CV/driveshaft knock.Seeing as I was on afternoons and in the middle of the Barnsley monsoon season,decided to go to work and have a look tomorrow.By the time I got to work,the car was knocking in a straight line and I was getting kickback through the steering wheel.When coming home,got no kickback,but still lots of knocking.The frequency of the knock doesn't increase whatever speed I travel at,however,it's quite pronounced under acceleration and disappears when freewheeling.Hope this makes sense.Anybody got any ideas before I start assaulting my car with a big hammer?Yes all my wheelnuts are there and tight

tim leech · Post by **tim leech** » Thu Jun 14, 2007 9:53 pm

Possible drop link?, does only do it going over uneven surfaces etc, find a smooth road and see if does it?

mountainmanUK · Post by **mountainmanUK** » Thu Jun 14, 2007 9:55 pm

Hi Dean,

Probably way off the mark....but my old 14 suddenly started making similar knocking noises one day. When I took the wheel off to have a gander, I discovered the bottom ball joint was completely FUBAR, causing the "hammering" when driving. If it was shaft or CV related I would have expected the speed of the knock to vary with speed.
Another guess....droplink?

if it IS the balljoint, at least they're pretty cheap, and generally not too bad to swap!

ken newbold · Post by **ken newbold** » Thu Jun 14, 2007 10:07 pm

Try jacking up the car and feel for lumps on the tyre

mountainmanUK · Post by **mountainmanUK** » Thu Jun 14, 2007 10:11 pm

ken newbold wrote:Try jacking up the car and feel for lumps on the tyre

Surely an "egg" in the tyre would had produced a speed-variable noise?

Barnsley BXer · Post by **Barnsley BXer** » Thu Jun 14, 2007 10:11 pm

Definitely not droplink(been there before).Knock is definitely metalic.I'll jack the car up in the morning and have a look/feel around.Bottom ball joint possible

mountainmanUK · Post by **mountainmanUK** » Thu Jun 14, 2007 10:18 pm

Try giving it a bit of a lever...if it's gone enough to cause the noise then you should see any play! (mine was as floppy as a floppy thing on a floppy day!)

ken newbold · Post by **ken newbold** » Thu Jun 14, 2007 10:51 pm

mountainmanUK wrote:
ken newbold wrote:Try jacking up the car and feel for lumps on the tyre

Surely an "egg" in the tyre would had produced a speed-variable noise?

[/quote

OK it's late

ken newbold · Post by **ken newbold** » Thu Jun 14, 2007 10:53 pm

Maybe it's that dodgy clutch that's about to give up the ghost

Barnsley BXer · Post by **Barnsley BXer** » Thu Jun 14, 2007 11:11 pm

ken newbold wrote:Maybe it's that dodgy clutch that's about to give up the ghost

Now that's an interesting thought.Explain how that would cause a CV type knock and you've got me won over.Then all I need is a new clutch

MULLEY · Post by **MULLEY** » Thu Jun 14, 2007 11:27 pm

Sounds like a new front wishbone is needed (or one of the bushes on it)

, had the exact same thing happen on my Gti, i bet it pulls to one side as well when u give it some beans???

Barnsley BXer · Post by **Barnsley BXer** » Fri Jun 15, 2007 11:15 am

Just been out and got drowned and maybe it is the CV joint.Hold the driveshaft and the brake disc rocks backwards and forwards about 1/4"
Anybody got aN/S ABS driveshaft lying around?

Barnsley BXer · Post by **Barnsley BXer** » Sat Jun 16, 2007 8:37 pm

Noise more or less stopped this morning.Went to Ken's feeling rather sheepish/foolish

He checked the CV joint and there wasn't a trace of grease.He Re-packed it and fitted a new strut return pipe(yes you CAN reuse the original clip

)No more noise,smooth as a babies bottom.Thanks Ken $\:D/$