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Garage => Mechanicals => Topic started by: alabbasi on 21 December 2005, 11:19 AM

Title: knocking sound on turn
Post by: alabbasi on 21 December 2005, 11:19 AM

This is really starting to get on my nerves. This is on my 79 6.9.

I am gettin this noise from my 6.9. The noise appears to be coming from the front wheels. The best way I can describe this noise is that it sounds like someone is banging a wrench against a hollow barrel.

I seem to be getting this noise only when I turn and accelerate at the same time (example, left turn at the light). The noise does not happen all the time, and appears to only happen after lots of driving. I had this noise before I took it to my mechanic and for him to rebuild the steering box. When I got the car back the noise went away. I have since been driving the car daily since Friday (30 miles each way to work) and the noise has re-appeared. This is what would happen before. If I stop driving the car for a week, the noise will go away for a couple of days and then come back.

I have no idea what the noise is and my Mechanic does not know either. He does not see anything out of place. Has anyone experienced this in the past.

Title: Re: knocking sound on turn
Post by: alabbasi on 21 December 2005, 01:36 PM
Thanks for the response, I think I have a clue as to what it may be. I was driving with a couple of colleagues to lunch today, one in the passenger and the other one behind him. Both swore that it was on their side.

I am beginning to think that maybe the struts are the problem and the wheels are rubbing against the arches. I will look underneath with a torch to determine if this is the case this evening.

The noise on the left turn makes sense now as the car would lean to the right.
Title: Re: knocking sound on turn
Post by: john skene on 26 December 2005, 06:00 AM
Alabbasi, the sound can also be typical of slightly worn wheel bearings, when the load changes in a turn you get a clunk type of noise, but I am sure your mechanic would have checked the basic details of loose nuts, wheel bearings etc before looking further. (Although I had a mechanic tell me it wasn't a wheel bearing noise on my car a week before it collapsed!!)