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Clanking Noise
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Author:  Ianredspecial [ August 22nd, 2021, 9:34 pm ]
Post subject:  Clanking Noise

Ages ago the car started making really awful clanking noises over bumps etc. Actually quite similar sounding to when you don't install the wings properly and the bottom edges catch on the suspension arm.
I showed it to an old school 2cv guy and he said it was a loose clamp on the steering column where it joins the rack. We tightened it, and it was so much better. A little clank remained though.

Today I've cleaned up that connector and loosened it right off before snugging it up absolutely as far as it will go. The little clank is still there but its better.

My theory is, because it was loose before and rode up and down a little or something, hence the clank, it created some wear and now the clamp is unable to clamp it enough. Its solid, but there is still this slight noise occasionally. I can't think what the solution would be, if there needs to be one?
A replacement used rack perhaps? So the splined bit would be unworn. Would be a shame to have to change to for such a small thing though. Is it possible the noise comes from the steering rack perhaps? (Hope not.)
Its not possible to recreate the clank noise at all when the car is stationary. I had the wings off and was swivelling the wheels for ages, nothing doing.

It basically needs to be tighter but the clamp is closed completely so there is no more tightening available. Maybe a different clamp perhaps?

As always, thoughts and advice would be very welcome.

Author:  Taskos [ August 27th, 2021, 8:39 am ]
Post subject:  Re: Clanking Noise

Please be aware that this clamp is notorious for snaping if overtighten. Note that it needs a high tension bolt.
As problems in this area may indicate a bend chassis , do confirm the parallelity and centering of parts before assembly.

Author:  Ianredspecial [ August 27th, 2021, 10:09 pm ]
Post subject:  Re: Clanking Noise

Oh that is really great information. Thanks Taskos.

Yes it's this clamp. I think for starters I should get a new one of those.

Author:  AZL57 [ August 27th, 2021, 10:55 pm ]
Post subject:  Re: Clanking Noise

Does your steering column move vertically?

Author:  Ianredspecial [ August 28th, 2021, 2:57 am ]
Post subject:  Re: Clanking Noise

No not with my efforts it feels tight. I just wonder if the speed bumps the UK is filled with, are able up produce movement I can't

Author:  Ianredspecial [ January 15th, 2022, 10:29 pm ]
Post subject:  Re: Clanking Noise

I changed my steering column thanks to the excellent Simon Sobey who sold me a good used one.

The splines on mine were indeed worn and lots of metal filings present. Success, bitch of a job though it took longer than I thought. Its much quieter now, but I think there was more than this problem, as less loud clicks and clanks are audible now from both sides at the front I think, although a bit more on the nearside. It does clank especially when settling after corners but otherwise feels and drives great.

I've greased my knives edges religiously, and also deep cleaned and relubricated them not long ago with no change to the noise.

So I think this has to be either knife edges that are worn due to mileage, or suspension arm bearings. Any thoughts are welcome.

Thanks for the previous advice!

Author:  AZL57 [ January 16th, 2022, 12:04 am ]
Post subject:  Re: Clanking Noise

Citroen advised in the 60s to take out the axle bolts one by one, grease them and put them back in and torque them correctly. I had some strange noise in my supension too. It came from a little pebble that wedged it'self between wing and the pivoting part of the wheelarm.

Author:  Ianredspecial [ January 16th, 2022, 10:41 am ]
Post subject:  Re: Clanking Noise

I once had a pebble trap itself somewhere down there, sounded horrible.

So greasing the bolts holding the arms on? That's interesting.

I do worry about the bearings in the suspension arms being dry, but I think that's a garage job so they can use the ramp.

I've bought a set of good used knife rod edges to put in at some point, but I am leaning towards dry/worn bearings. It's done about 120k miles and lots of heavy loading and having fun on bumps. Maybe I'm paying for that now...

Author:  AZL57 [ January 16th, 2022, 5:29 pm ]
Post subject:  Re: Clanking Noise

The bolts that hold the axle to the chassis not the arms. The arms bearings can be a problem too. My brother had that on his acadiane. On the way to portugal he broken down in spain. The rollers in the bearings were completly desintegrated by rust. So somewhere water got at them.

Author:  Taskos [ January 16th, 2022, 8:27 pm ]
Post subject:  Re: Clanking Noise

This condition may cause loud clicking during acceleration from stand still.

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