When you take to top mounts off you should be able to clearly see if thats whats knocking. The turret should be burred and rusty where its been knocking. o/s will be around 1-2 o'clock and n/s around 10-11 o'clock. The Renault fix is to remove some metal with a dremmel or die grinder of sorts...round file if needs be....around 5mm in the area. This allows to top mount to be re-fitted in its original postion as Renault intended.
The washer fix does work, by raising the top mount away from the turret, by the thickness off the washer used....3mm being chosen by Yozzasport. As i'm not a Renault design expert, I cannot comment on the effect of raising the mount 3mm. But when I test fitted some, I noticed the top mount did not fasten down to the turret as it originally did. This lead me to believe there could be play when the strut becomes unloaded. Others have also failed mot's with these fitted.
If this knocking isn't your issue....you may have engine mounts gone.
Its now the new offical renault fix, renault copied me
the washers sold by yozza are exactly the same as found on the V6 clio (they leave the factory with them fitted)
a pair of machined stainless washers delivered for £10, i'd say that was fair, go buy them from renault if you don't like it, £60 the pair
i could've been a c**t and not told anyone on the forum about this, and kept it secret or just sold them through yozza exclusivley, but seeing as i'm a nice chap i told "the world" about it, some people have made their own fair enough, it would be nice to think i've done all the cliosport owners a favour, but it seems again people whinge over £10!
:nono: