Trailing arm knock

[Leslie green 110]

I think given the movement the shafts need changed it would be very unusual to get some that are reusable at this age.If you are doing the bearings do the shafts too for a proper job ,I have replaced bearings only before and the car failed mot the next year again for axle play .

[Gavin Waddell 18]

Little update, i would like to state that i am a FOOL!

Went to the pool with ny little one and on the way home got her to kneel on the back seat a listen for the knocking.

She dually replies, "sounds like it coming from your side of the boot."

I reply "Are you sure its not the other side?"

" nope defo your side"

Got home and had a look under and i see the bracket for the brake line on the lower shock bolt hanging down, give it a wiggle and it was loose, did up the nut. Went for a drive and no more knocking. 

 

So hopefully fixed.

 

I was so sure it was from the passenger  side i never did a bolt check on the drivers side. I am a prize IDIOT.

 

Still doesnt explain the weird knock on the passenger side but it might just be the play in between the bearing and arm? 

 

I will update in a week to see if it comes back or not.

 

Still feel like a fool.

 

Thanks everyone for your advice a head scratching.

[Leslie green 110]

Making progress that's all that matters lol

[Gavin Waddell 18]

Thread rival, after finding that one of the shock bolts had come loose i re tightened it and the nasty knock went away, but there is still a small knock, which i reckon is the shaft knocking like i showed in the videos. my question is this:

1: can the shaft wear and lose some external diameter making it knock

 

Im going to press a new shaft into the trailing arm and see if it still has the same play. If the bearings still spin freely, they've only done 2000miles since being installed, are they still good or should i just also change them for piece of mind and 20 quid? 

 

Thanks Gavin

[Gavin Waddell 18]

Pressed in a new shaft (identical to the drivers side that has no play), got home, and the test fitted it and still got play. I'm guessing the bearings might be out of tolerance? So going to put some new bearings in. I read somewhere that It can happen sometimes, fingers crossed.

[SweetBadger 94]

Watching this one! 

 

I have what appears to be the same issue - very slight play on the rear n/s trailing arm. Only detectable when there is minimal load on the suspension. If I jack the bottom of the trailing arm, loading up the suspension, the play is no longer detectable (by hand grabbing the wheel and shaking).

 

This is on a beam with a new trailing arm shaft and bearings which has done very few miles.

 

If changing the bearings solves your problem then I might pull the trailing arm and replace the bearings, but the play is very small and not detectable when driving. 

 

Anyone have recommendations on a good supplier for the bearings? Think the set I installed was an SNR kit from eBay 

 

[PhilNW 44]

Have you followed this 

 

 

Suggest you take all the load off the axle/trailing arm and then disconnect the shock absorber and anti roll bar and then checked all parts individually.

 

Is the noise/knock when

1- rotating the arm in the axle OR

2 - moving the arm in and out of the axle OR

3 - moving the arm from side to side

 

Torsion bar fitment? Anything underneath catching on them? Good fitment on the splines?

 

Bolt the shock on 1 end at a time and check for noise/knock

 

Any issues with the anti roll bar? Bolts done up. rubbers bushes good?

 

Have you replaced both inner and outer bearings (as per guide above) ? were they a good fit in the axle tube?

 

Any issues with inside of axle tube from a visual inspection?

  

  

 

Edited October 28, 2023 by PhilNW

[jord294 92]

I found snr bearings very poor quality to genuine Koyo, Torrington or Nadella.  Genuine bearings can still be bought from main dealer. I spend quite a bit of time sourcing genuine parts.

[SweetBadger 94]

45 minutes ago, jord294 said:

I found snr bearings very poor quality to genuine Koyo, Torrington or Nadella.  Genuine bearings can still be bought from main dealer. I spend quite a bit of time sourcing genuine parts.

Found genuine Nadella ones at rolling.hu - 4 euros for the inner, 21 euros for the outer.

 

Shipping is a bit expensive though at 30 euros, but if you ordered a few might be worth it.

 

 

[SweetBadger 94]

2 hours ago, PhilNW said:

Have you followed this 

 

 

Suggest you take all the load off the axle/trailing arm and then disconnect the shock absorber and anti roll bar and then checked all parts individually.

 

Is the noise/knock when

1- rotating the arm in the axle OR

2 - moving the arm in and out of the axle OR

3 - moving the arm from side to side

 

Torsion bar fitment? Anything underneath catching on them? Good fitment on the splines?

 

Bolt the shock on 1 end at a time and check for noise/knock

 

Any issues with the anti roll bar? Bolts done up. rubbers bushes good?

 

Have you replaced both inner and outer bearings (as per guide above) ? were they a good fit in the axle tube?

 

Any issues with inside of axle tube from a visual inspection?

  

  

 

My beam is not standard - aftermarket 25mm bars, 24mm arb + coilovers in place of the dampers. Nylon arb bushes. No play in anything that is bolted on, no loose bolts. 

 

Spline fit is not great on the aftermarket bars, but I don’t think it’s that as you can feel the slight movement at the wheel.

[PhilNW 44]

"No play in anything that is bolted on, no loose bolts" what about when unbolted as per my suggestions above? 

 

Presumably the axle tube, trailing arms and hubs are all standard? using standard bearings etc?

 

when you say "you can feel the slight movement at the wheel"  (i.e knock) exactly what do you mean

 

Is the noise/knock when

1- rotating the arm in the axle OR

2 - moving the arm in and out of the axle OR

3 - moving the arm from side to side OR

 

Wheel bearing play?

 

 

 

 

[Gavin Waddell 18]

The bearings i used where also snr.

I can get Sasic, QH  metalcualcho, maxgear,nty, skf, febi, metzgear, storm, swag all from mister auto. What peoples experiance with rhe above brands, will also try my local peugeot dealer to see if they can still get them. 

 

[DamirGTI 342]

Might've been supplied with the SNR bearings with the less needles count  , there was an batch of those at the time possibly still some around on the market .

 

SKF or Sasic - same bearings . Sasic repacks SKF bearings .

 

I found it cheaper buying all the beam tube parts individually from Sasic , rather than going for the kit/set package of either SNR , SKF and the likes . 

 

Skip cheap less known brands like : maxgear , nty , storm , metzgear etc. ... that'll be Chinesium .

 

D

 

[welshpug 1,657]

I have had a few instances of worn trailing arm splines, the cast steel arm is soft compared to the hardened steel torsion bar.

 

Another thing i have seen with some aftermarket bars is poor spline shape,  more of a tooth than a spline!

 

SNR boxed bearings are usually INA, made in germany or france no problem with these, typically sourced from Autodoc.   Granted I dont build as many as some on here.

[Gavin Waddell 18]

I checked the Sasic catalogue and the part number is the same as the Mister-Auto website so will order them and hope thaybhave the higher needle count, hopefullybi just had an out of tolernce bearin.

 

 

[SweetBadger 94]

got hold of some.
 

Nadella (left) vs SNR inner bearing

 

Nadella has wider needles and more of them, quality is noticeably superior.

 

 

[jord294 92]

2 hours ago, SweetBadger said:

got hold of some.
 

Nadella (left) vs SNR inner bearing

 

Nadella has wider needles and more of them, quality is noticeably superior.

 

 

I did say earlier in topic that snr are poor quality 

[SweetBadger 94]

5 hours ago, jord294 said:

I did say earlier in topic that snr are poor quality 

I didn’t doubt you, just though a pic to show the differences would be useful! 

[jord294 92]

3 hours ago, SweetBadger said:

I didn’t doubt you, just though a pic to show the differences would be useful! 

If I could post pics I would. Tried so many times. Even the metal finish of snr bearings is poor compared to proper oe bearings

[Spesh 31 1 Cars]

On 11/3/2023 at 11:51 AM, SweetBadger said:

got hold of some.
 

Nadella (left) vs SNR inner bearing

 

Nadella has wider needles and more of them, quality is noticeably superior.

 

 

Where did you source them dude?

[Gavin Waddell 18]

Thats a big difference, would you have the refrence number ? I ordered a  sasic kit ( also got it for the cup and seal)  will see the quality of them,  if they are crap i will source some nadella ones. Hence wanting the reference. Thanks

[Spesh 31 1 Cars]

Nadella part numbers found here from mei

 

I fired midlandbearings an email as they are the nadella distributors for the uk

 

 

[Gavin Waddell 18]

Tha ks i just went onto the nadella site and looked at there catalogue and couldnt seem to find them are they no longer available.

[DamirGTI 342]

Order Sasic bearings , in single package per piece ie. 1 bearing .

 

You'll get inside the package either SKF or Timken bearing (same as Nadella) :

 

Inner bearing sample pic :

https://www.cardon.com.ua/autopart/sasic/1315455

 

I've some extra spare packs of Sasic bearings , some are Timken , and some are SKF - all the same as Nadella , ie. proper count of needles , robust cage and shell - quality bearing as OE item .

 

Price wise :

 

inner 1315455 - 6 EU per piece

outer 1325495 - 8 EU per piece

 

D

 

 

[welshpug 1,657]

A lot of automotive bearings are not available outside the automotive supply chain, typically as they are of 'non standard'  dimensions.