knock knock?

A-Trak

I've a weird knocking from the front passenger side of my car which is getting progressively worse. Its a rhythmic sounding knock that increases with speed.

Doesn't matter what road surface, cornering/speed bumpd dont effect it, (making it louder or reduce the sound.)
knock still present if I coast or clutch in, so not engine related, hopefully.

Not the wheel or tyre, I swapped it out.
Don't think its a bearing as I jacked it up and no play on the wheel.

Has to be suspension related?
Drop links look okay and NCT recently passed.

Any ideas?

Outkast_IRE

Not a mechanic , but isnt there another bearing in past the wheel bearing , i think its called the drive bearing or something like that, it might be a possibility

Leprechaun77

A-Trak wrote: »

I've a weird knocking from the front passenger side of my car which is getting progressively worse. Its a rhythmic sounding knock that increases with speed.

Doesn't matter what road surface, cornering/speed bumpd dont effect it, (making it louder or reduce the sound.)
knock still present if I coast or clutch in, so not engine related, hopefully.


Any ideas?

Had something similar myself.....turned out to be just the wife

blade1

does it still knock when you press the brakes?
what kind of car is it?

Joshua J

CV joint?.

A-Trak

blade1 wrote: »

does it still knock when you press the brakes?
what kind of car is it?

It slows down when braking, doesn't stop, get louder.

Its an Alfa 156.

blade1

if you jack up the car and spin the wheel is there any noise?

A-Trak

blade1 wrote: »

if you jack up the car and spin the wheel is there any noise?

Nope, silent as. Swapped out the wheel tyre anyway just to be sure.
Seems to only happen when the wheel/suspension is bearing the weight of the car.

Checked loose panels behind the wheel as well. This one is well beyond my limited knowledge

blade1

A-Trak wrote: »

Nope, silent as. Swapped out the wheel tyre anyway just to be sure.
Seems to only happen when the wheel/suspension is bearing the weight of the car.

Checked loose panels behind the wheel as well. This one is well beyond my limited knowledge

very hard to say without hearing but all i can say is check for play in all suspension parts.

Andy_Dublin

Anti roll bar bushing or top mount....

Chris_Heilong

Andy_Dublin wrote: »

Anti roll bar bushing or top mount....

This would be my guess also