Author |
Topic: front end knock 2.3 (Read 2071 times) |
|
pedropedro
Full Member
Posts: 677
|
 |
front end knock 2.3
« on: Feb 3rd, 2011, 6:07pm » |
 Quote  Modify
|
its not the link rods/anti roll bar bushes or wishbones ......theyve all been changed
if the car is lifted on jack after lowering its ok for a mile then this knocking occurs ...so think its the the shocks
could anyone comment/confirm please...tks
|
|
 IP Logged |
|
|
|
PJDavis
Senior Member
2 x 1995 Jag X300 3.2 / 4.0 (Henley) 1957 XK140
Posts: 1474
|
|
Re: front end knock 2.3
« Reply #1 on: Feb 3rd, 2011, 6:23pm » |
Quote Modify
|
Top Suspension Strut Bushes.
|
|
IP Logged |
I love 'Movvy'
1995 Jaguar XJ6 X300 3.2 (Henley)
1995 Jaguar XJ6 X330 4.0 (Dopey)
1957 Jaguar XK140 USA (converted to RHD, and to have fitted Mk10 420G Engine with BW 65 Auto Trans)
|
|
|
pedropedro
Full Member
Posts: 677
|
|
Re: front end knock 2.3
« Reply #2 on: Feb 3rd, 2011, 6:51pm » |
Quote Modify
|
how can you tell ? is it the bearing you refer to ? or what ?
|
|
IP Logged |
|
|
|
gozz
Senior Member
Been around awhile
Posts: 3475
|
|
Re: front end knock 2.3
« Reply #3 on: Feb 3rd, 2011, 9:02pm » |
Quote Modify
|
If the ball joint/s in the rack get dry they produce a sound like a knock when traversing a rough road.If you can introduce the knock by pressing down on a front corner,temporarily remove the track rod end and see if it goes.You can cure it by sliding the boot back,turning the rack to get at the joint then work it round with some gear oil.
The sound in this case is actually a creak,but passes through as a knock.
GOZZ.
|
|
IP Logged |
|
|
|
pedropedro
Full Member
Posts: 677
|
|
Re: front end knock 2.3
« Reply #4 on: Feb 3rd, 2011, 9:13pm » |
Quote Modify
|
ok thanks for that,,,ive tried pushing down both sides no sound ....garage think its shocks but would like some advice before parting with money...its more a rattle ,slight banging, knocking ..when it started it would clear after 3-4 miles now there all the time....as said jack the car up and it goes until 4-5 miles then back it comes.....really annoying
|
|
IP Logged |
|
|
|
Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
|
|
Re: front end knock 2.3
« Reply #5 on: Feb 4th, 2011, 3:51am » |
Quote Modify
|
The front has Macpherson struts, not shocks....so any knock in it would most likely come from the upper bush being worn. This isn't a common problem really, as the bush is about as robust as you can get. The usual upper strut problems are creaking from the bush drying out (seems to be at certain times of year) or the bearing brace breaking (very rare).
If the sound comes from lower down, then it's defo not the top strut bush/bearing 
As Gozz mentioned....the steering rack inner ball joints can cause a knock when they're worn.
To test them....grab a rod with one hand & clasp the other hand around the gaiter so you can feel the joint, then pull/push the rod. If the joint is bad, then you should feel & hear the click of the ball loose in it's joint.
A grease up of the joint doesn't tend to cure the problem, as the damage is usually already done due to water ingress (split gaiter) 
Another thought...when you replaced the wishbones, did you replace the large rear bushes ?
Hope this helps 
|
|
IP Logged |
|
|
|
pedropedro
Full Member
Posts: 677
|
|
Re: front end knock 2.3
« Reply #6 on: Feb 4th, 2011, 8:14am » |
Quote Modify
|
thats vey useful stuff ....thank you will investigate and come back when resolved
|
|
IP Logged |
|
|
|
Simmo
Administrator
I'm an OAP !
Posts: 5508
|
|
Re: front end knock 2.3
« Reply #7 on: Feb 4th, 2011, 9:01am » |
Quote Modify
|
on Feb 3rd, 2011, 6:07pm, pedropedro wrote:its not the link rods/anti roll bar bushes or wishbones ......theyve all been changed
if the car is lifted on jack after lowering its ok for a mile then this knocking occurs ...so think its the the shocks
could anyone comment/confirm please...tks |
|
Go to This page and then check out 'Steering Rack' on the buttons on the left as well. If the car has had things replaced you will see that it is crucial to torque the bolts up with the car on the ground. The details are available in 'Front suspension'on the same page.
|
|
IP Logged |
Now I'm an OAP
|
|
|
|
Home
Help
Search
Members
Login
Reply
Send Topic
Print