Hi guys,

Im after a pair of the anti-vibration damper parts (1J0 - 698 - 998) for the rear h/brakes, or if anyone

has them fitted could you measure the dia of the wheel plus o/all thickness (I think its about dia 40mm x 16mm )??.

Thanks

Edited 25 February, 20215 yr by Silver Bullet

UPDATE

Finally got the vibration dampers made and fitted to the new calipers. Swapped out the new assemblies for the original ones and bled the brakes.

I took the car out for a quick run, still using existing brake pads and discs the annoying “mooing” has vanished…. Result.

 

All I had to do to the caliper assembly was drill and tap one M6 hole through the static metal plate.

There is a clearance of about 2mm between face of neoprene and return spring body. All the metal parts used are stainless steel.

I priced the 2 assemblies and it came to £17.69, not the £100 + quoted.  

Happy Days

 

Interesting solution to the mooing noise.

 

What actually causes the noise in the first place? I thought it was the pads on the disks hence I fitted the return spring.

 

 Hardly checked if the springs are effective as I've only done a few miles in the car.  

Hello,

Firstly I am not a vibration expert,  the subject itself is a bit of a “black art”

 

My thoughts on this are :- The wheel rotates - sound occurs – something rotating or in contact with a rotating surface starts to vibrate at a fairly high frequency, then the metalwork incontact with it starts to resonate in sympathy acting like a amplifier.

 

Not having the equipment to check where the vibration occurs my best guess is the brake pad on the disc is the source, the disk amplifies the vibration this then migrates into the moving piston then into the internal handbrake adjuster mechanism and then goes god knows where, maybe even into the rear suspension beam or the handbrake cable as well.

 

I just don’t think that Skoda would offer a (when it was released) £100 retrofit kit if they didn’t have a degree of confidence that it would work. All I have done is mimic their design. The concept is of using material with good vibration deadening properties sandwiched between dissimilar materials to break up or interrupt vibration generation /propargation. (Think of troops marching across a bridge, they always break step to counter the generation of a harmonic vibration that, if allowed to continue and grow would eventually destroy the structure). This isnt very likely with the Vrs however lol, its just a irritation.

Like you, I also fitted a return spring and for a few months all was silent then gradually it returned.

Some people swear by filing chamfers on the leading / trailing edge of the brake pads. Others file a deep slot in the pad at right angles to its long edge.

 

Hope this sheds some light on it.

 

 

Edited 18 March, 20215 yr by Silver Bullet