Hello! With my RS2000 year 96 a slight “quick” in the engine run is appearing recently. So I suspect that it is 99 per cent a defective hydro plug, the noise is also not always there. My question is now whether a motor flush would be long or if it would be better to replace the or all rams, because it is certainly not so easy to find the right or the defective one. The engine has a mileage of 135TKM. Should one be in the same way Maybe renew other components, such as valve shaft seals, chain tensioners or similar? Has anyone had similar problems? Does anyone know how expensive the bumps are?