Bang on lock dropping off curbs?

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scirocco_ne
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Bang on lock dropping off curbs?

Post by scirocco_ne » Mon Feb 18, 2019 3:41 pm

Hello everyone,

I thought i would ask this incase anyone has a clue. Since fitting new suspension on the car i have noticed it bangs when dropping off curbs under right lock with the left wheels up the curb. Other side seems fine but this side everytime under lock BANG.

It's all new sus wise so any ideas?

Thanks
Mick



hanna.melbo
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Re: Bang on lock dropping off curbs?

Post by hanna.melbo » Tue Feb 19, 2019 9:58 pm

Is it adjustable? sounds like it just bottoms out??? Can someone watch you drive off the curb to see what happens? in terms of weight distribution theres a lot of weight on the side thats on the road if one side is on the curb



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james butler
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Re: Bang on lock dropping off curbs?

Post by james butler » Fri Feb 22, 2019 7:31 pm

loose bolt somewhere ie bottom ball joint, the shock strut to hub bolts, top mount bolts and securing nut on the very top of the strut.
if there is play you should be able to feel it if you jack the car up and wobble the wheel using a bar or something to apply pressure


I dont mind project cars but I HATE SANDING!!!

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Re: Bang on lock dropping off curbs?

Post by blakey » Fri Feb 22, 2019 9:33 pm

Worth checking if the damper insert has any movement in the strut. People have put a washer or penny in the bottom and then tightened the collar to ensure the insert has no play in the strut.


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scirocco_ne
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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Sat Feb 23, 2019 12:33 pm

Ill give it a good check over Thanks.

It is odd that its only one side and when a curb is bigger than usual.

It drives brilliant appart from this so i will have to get it sorted

Mick



scirocco_ne
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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Sat Feb 23, 2019 4:09 pm

Just had a look and everything was tight sadly.

I got some stilsons on the shocker insert and nipped it some more but to no avail.

I have noticed under no load there is up and down play though in the strut at the top nut. Should i try adding a extra washer to the piston shaft at the top to see if it helps?

Mick



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Re: Bang on lock dropping off curbs?

Post by blakey » Sat Feb 23, 2019 6:37 pm

Sounds like it's worth adding a washer at the bottom under the damper insert of there's movement in the strut body.

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scirocco_ne
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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Sat Feb 23, 2019 7:59 pm

blakey wrote:
Sat Feb 23, 2019 6:37 pm
Sounds like it's worth adding a washer at the bottom under the damper insert of there's movement in the strut body.

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Would the top of the strut not also close the gap?



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Re: Bang on lock dropping off curbs?

Post by blakey » Sat Feb 23, 2019 8:03 pm

It would, be careful the washer doesn't touch the seal around damper rod to avoid damage or leaks.

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mark1gls
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Re: Bang on lock dropping off curbs?

Post by mark1gls » Sat Feb 23, 2019 8:18 pm

If you lift the wheel off the floor and put a bar underneath the tyre then leaver on the bar you should see where the movement is, I find it’s usally the nut ontop of the strut mount, there is a think metal bush which is meant to be a crush bush when you tighten the nut but I find I can’t crush it, I remove the bush and grind a little off it. The car MUST be sat on its wheels and you undo the big nut, remove the big washer then with a couple of thin screw drivers you can remove the metal bush, grind a little off the height then re-grease then refit and test again once the car is back in the air...

You can see the metal bush which inserts into the top mount in this link...
https://www.ebay.co.uk/itm/PAIR-of-Febi ... 1097102012


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james butler
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Re: Bang on lock dropping off curbs?

Post by james butler » Sun Feb 24, 2019 2:29 am

sounds like top mount bearing has a lot of play in it


I dont mind project cars but I HATE SANDING!!!

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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Thu Feb 28, 2019 8:08 pm

As soon as i get a chance i am going to have a good luck and diagnose it. Everything's new so either way something is either faulty or the washer gap is out as Mark suggested.



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Blueshark
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Re: Bang on lock dropping off curbs?

Post by Blueshark » Thu Feb 28, 2019 9:07 pm

Never mind the problem.

Who drives his Scirocco of the curb ?. :-(

Joost



scirocco_ne
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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Fri Mar 01, 2019 6:17 pm

Blueshark wrote:
Thu Feb 28, 2019 9:07 pm
Never mind the problem.

Who drives his Scirocco of the curb ?. :-(

Joost
We are not talking group b style curb bouncing here haha

Any drop curb thats above a 2 inches and its BANG



scirocco_ne
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Re: Bang on lock dropping off curbs?

Post by scirocco_ne » Wed Apr 10, 2019 10:45 pm

mark1gls wrote:
Sat Feb 23, 2019 8:18 pm
If you lift the wheel off the floor and put a bar underneath the tyre then leaver on the bar you should see where the movement is, I find it’s usally the nut ontop of the strut mount, there is a think metal bush which is meant to be a crush bush when you tighten the nut but I find I can’t crush it, I remove the bush and grind a little off it. The car MUST be sat on its wheels and you undo the big nut, remove the big washer then with a couple of thin screw drivers you can remove the metal bush, grind a little off the height then re-grease then refit and test again once the car is back in the air...

You can see the metal bush which inserts into the top mount in this link...
https://www.ebay.co.uk/itm/PAIR-of-Febi ... 1097102012
Finally got round to filing the bushes down today until no play was present when jacked up.... It drives bettrr no doubt but on high curbs on a good lock still produces a bang?

Is it normal on curbs say 5-6" high for it to sound loud on drop off?

I checked all the new ball joints, bushes etc and nothing has play in it.

Thanks
Mick