Ohlins MP20 knocking noise

[FRS Justin]

Preload or strut mount

[teppei]

Originally Posted by Dihudaxia

Best way to know, put back the OEM tops.
The MP20 can re-use the OEM rubber tops.

If noise goes away, its the raceseng plates.
If it still persist, swap out the endlinks to stock ones, rinse and repeat.

Do this until the only factor left, is the dampers...

yes, this is the last option. I don't have spring compressor. I might have to give it a try anyway. Just scacrificing camber is not what i want.


Preload is 32mm front, which is recommeded setting and way above normal preload setting. Even 2mm of preload the spring should not move when the car is off the ground.

[eron]

I had a similar knock and found that one of the lower bolts which mount the shock internals into the strut body was not torqued. This is the bolt which has the rebound adjuster running through it, in the bottom of the shock body. It takes a 19mm deep socket to reach it over the adjuster. I guessed at 35 ft/pounds as a torque wrench setting and one side clicked at that setting, and the other went almost 1/4 turn before reaching that torque.

I went through a lot of other things first, like many others have...

You should be able to reach this bolt without lifting the car. Turn the steering all the way to the right to access the left side from behind the wheel and then turn the steering to the left to access the right side.

[nikitopo]

Too bad that it comes under-torqued from the factory. Did they outsource the manufacturing of these coilovers? I installed recently a Sachs performance coilover and did not have any issues at all. No knocks or strange sounds and suspension works perfectly.