Irritating knocking taking the edge off enjoyment
Discussion
A number of short runs in the 450 ('99 13,000 miles) over local roads over the past 10 days have raised my awareness of a persistent and intrusive knocking from the back of the car. It's not there at higher speeds when the suspension is under greater load but at lower speeds on uneven surfaces it's a constant knock-knock-knock. I reckon that each short journey requires a 30 mile thrash on fast roads to remind me why I'm driving a Chimaera and not a modern day car!
300 miles ago I had a full TVR service and asked for this to be rectified and the 2 rear bilstein shockers were identified as the culprits and were replaced by AVO adjustables. It seemed better for a while but now we are back to pre-service knock levels!
I've checked that there's nothing obviously lose in or around the boot, and the rear exhaust mounting is new and tight. The ARB and mountings are OK.
I know that Chimaera's are reknown for noises 'arft and I've got the car booked back in again for the problem to be diagnosed and rectified. But has anyone been through this and can tell me what is likely to be the problem?
300 miles ago I had a full TVR service and asked for this to be rectified and the 2 rear bilstein shockers were identified as the culprits and were replaced by AVO adjustables. It seemed better for a while but now we are back to pre-service knock levels!
I've checked that there's nothing obviously lose in or around the boot, and the rear exhaust mounting is new and tight. The ARB and mountings are OK.
I know that Chimaera's are reknown for noises 'arft and I've got the car booked back in again for the problem to be diagnosed and rectified. But has anyone been through this and can tell me what is likely to be the problem?
dannyboyo said: Does it relate to acceleration/decelleration or going over bumps? Is it in any gear?
No, the knocking (not a drivetrain clunking like a slack diff) is there all the time around 20-40mph, all gears and even coasting in neutral. Though as Gaz said, after the suspension has warmed through, it's less, as it is at higher speeds. It seems to be caused by short, undamped oscillation of the hub - nearside I think. This leads me to suspect one or more of the hub bushes.
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