Anti roll bar?

[smitty12]

Right i'm no further forward with this knocking on the car? Could it be the anti roll bars? They dont look in the best condition and my car is lowered by 50mm on weitec springs and standard shocks

what uprated anti roll bars can you get and how costly are they?

[StingyCH]

Hi Smitty, i had to change this too, i've got an Eibach for 80.- swiss francs, 2nd hand. The problem on the mk IV it's the right semiaxis. It's a bit bigger than the left one and also shorter, so it works more on bumps and so on. So when u lower the car like you did (i have the same coilover as you), the OEM antiroll bar is touching on this! The Eibach it's bent in a different way and it wont touch against the semiaxis. Hope this helped you!

 

[smitty12]

was your car knocking? mainly coming down hill whe backing off the throttle?
Really hope it is this and not the gear box

[Rhyso]

was your car knocking? mainly coming down hill whe backing off the throttle?
Really hope it is this and not the gear box

You checked the gearbox mount? 

[smitty12]

Yup had it off the other day and its fine,
think a ARB could cause the knocking?

[StingyCH]

Hi again Smitty,
on my car was not only knocking, but also grinding when braking down hard If you got the coilover and lowered the car more than 40mm, then the oem ARB will touch on the semiaxis..check the right semiaxis for signs or so..by doing this, you can be 100% sure if it's the right problem!

 

[StingyCH]

U checked the semi?

[smitty12]

U checked the semi?

I've just had a look to see if the ARB looks like its touching anything and it seems fine 
What do you mean when you say the semiaxis? sorry if i sound stupid  :embarassed:

[StingyCH]

This one..



The one at the right side, when u lower the car more than 40mm it goes touching the ARB on the mk IV 

[johnson6672]

Does your engine move alot when you rev it looking at it in the engine bay?