Archive for the ‘axle movement’ Tag

Bushes, suspension and steering


Rubber bushes are used nowadays on the majority of vehicles to isolate and dampen road noise whilst at the same time allowing suspension and steering components some flexibility and movement.

Problems begin when the bushes deteriorate or become unbonded, when this happens the suspension component is no longer retained in its correct position, excessive movement occurs and noise increases.

The above are all examples from the front suspension, the rear suspension can also have rubber bushes and mountings, again when the bush deteriorates excessive movement and noise occurs. Laguna-rear- subframe

The above image is that of a Laguna rear arm mounting bush.

Also subject to checking for excessive movement  are the rubber bushes that steering racks can be mounted with, again the criteria when being checked is is there excessive movement or is the component insecure. The image below is of a pair of new steering rack mounting bushes beside a pair of worn bushes, two pairs are needed to mount the rack in this case a 54 reg mercedes c class.c-class_steering

In the above case the steering rack was moving enough to cause the ESP light to illuminate and for the ECU to limit the power produced by the engine.

Since the 20th of this month the ESP light being illuminated is a reason for rejection (failure)

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205 axle movement


An example of excessive wear in the rear axle of a Peugeot 205 recently presented for an Mot, usually found on some of the “go faster” 205s this  was found on a small 1000cc model. With the “go faster” models the wear is usually immediately apparent by signs of the rear tyre rubbing on the inside of the rear wheel arch. However in this case with the vehicle having 145 x 13 tyres the play only showed up by rocking and shaking  the rear suspension. Whilst the video doesn’t show the amount of movement very well the audible clunk is quite apparent The tyres fitted to the rear axle were quite new, so no unusual wear was apparent.

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