Wheel bearings and brakes...
Discussion
So, finally got new rear discs coming from Autodoc, pads from Porterfields, new calliper bolts from Aston bits (and new wheel centres)... I have a question though, I’m Now getting a clunk-clunk from what sounds like rear near side, don’t know if this is related to low rear pads, wheel bearing (usually whine in my experience) or something more sinister... I’ll get her up in the air this coming week and investigate, but it’s deffo a knock knock that’s commensurate with road speed.. any thoughts chaps?
TIA Richard
TIA Richard
paulrog1 said:
A worn wheel bearing is normally a rumble sound and not a clunk-clunk,
Maybe a stone trapped in the brake disc?
I would jack up, remove the wheels and have a good look at brakes and suspension components.
I'd agree with this. Is it all the time or when cornering? I had/probably-still-have a metallic zing when cornering right which I have never really traced...mine seemed to come from the nearside front when cornering spiritedly at speed. Changing all the discs and pads (for wear masons) had no effect. Bearings are a rumble that can get louder when cornering, and the wheel may have a little play when lifted, grabbed firmly and flexed.Maybe a stone trapped in the brake disc?
I would jack up, remove the wheels and have a good look at brakes and suspension components.
A heavy knock or clunk is usually attributed to a balljoint or bush. As you have yet to install the new rear brakes, we can assume it's not connected to anything you have done. Wheel bearing inevitably hum, then rumble as they wear at ever increasing rates, and very low pads can grumble due to heat, niticeable hen approaching the stop.
I think I would check upper and lower arm bushes and all the other balljoints back there.
I think I would check upper and lower arm bushes and all the other balljoints back there.
Thanks for the replies and advice fellas... now have new Porterfield R4-S pads, new calliper bolts, and new shiny wheel centres... discs have been dispatched from Germany... need to get new disc retaining screws otherwise all there... I’ll post again when I’ve sussed out the clunk clunk... picking the TVR up tomorrow after big service and fresh MOT... after two years off the road... can’t wait to hear feel the noise 
Edited by baconsarney on Tuesday 8th September 14:37
Discs should come with brand new retaining screws - HOWEVER ! mine were slightly proud of the hub face, i.e the countersunk hole on the mating face to the wheel, that the screws screw through, wasn't deep enough. I ended up taking 1mm or so off each screw with a file.
You don't want the screws to sit proud otherwise you'll be chasing your tail for months and £££ trying to get rid of the steering wheel shimmy.
You don't want the screws to sit proud otherwise you'll be chasing your tail for months and £££ trying to get rid of the steering wheel shimmy.
JonnyCJ said:
Discs should come with brand new retaining screws - HOWEVER ! mine were slightly proud of the hub face, i.e the countersunk hole on the mating face to the wheel, that the screws screw through, wasn't deep enough. I ended up taking 1mm or so off each screw with a file.
You don't want the screws to sit proud otherwise you'll be chasing your tail for months and £££ trying to get rid of the steering wheel shimmy.
Good info! Discs arrived this afternoon but not opened yet so not checked for retaining screws... in the meantime here’s a relevant piccy You don't want the screws to sit proud otherwise you'll be chasing your tail for months and £££ trying to get rid of the steering wheel shimmy.
Wessa said:
baconsarney said:
Good info! Discs arrived this afternoon but not opened yet so not checked for retaining screws... in the meantime here’s a relevant piccy
How much did you pay for the centres and pads? Cheers,
I was initially going for Textar pads but all the suppliers I could find were out of stock...
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