hello! first of all thanks to everyone who knows so much about this and who is trying to help others! am new here in the forum and you have helped me very nicely so far. I got a 1992 rs2000. unfortunately the good piece has so many defects, which we (kumpel + ich) want to eliminate after the row. the restless empty run we have after llrv exchange, new spark plugs as well as throttle valve cleaning (as described here in the forum several times). since the motor also clacks , clapping or as you would otherwise like to call it, we have replaced the hydros (against used…). the engine is running wonderfully, only the clacking is still in exactly the same form (motor oil before and after 5w30). since we have installed used tusks these could have made even nen macken. but isn’t that a little improbable especially since the noise is practically the same? after driving over highway or for more than half an hour the cool water cooks. ie stands on center (where is it if everything is in order, because in the range it is normal yes.?). could the clapping, which becomes faster when the speed is increased and can be heard at load, thus acceleration/starting (with constant speed silent/not to be heard) also elsewhere have its origin (possibly water pump)? it is really hard to locate the noise exactly.. :-(has someone possibly an idea? the engine has 155,000 km on it, 2.0i DOHC RS2000, spark plugs now new, hydros changed (used :-(), cylinder head seal new, valve cover seal new I thank each and every one for a tip/rat! greetings, chris