Hi, who knows well with engines and specific engine noises? Our 94 Honda Concerto 1.6i with 112hp and around 140,000 km has the following problem: if it is cold, and only then, then a knocking or clacking from the engine compartment, which is not to be overheard by now, comes, actually, from the engine interior, I have been asked if I am not sure that this is not a diesel. Is as said only if it is cold and has been stopping for at least 20,000 km now, i It’s hard to describe the sound: a very fast, staccato-like, metallic (?) clacking or knocking. Do I have to worry about the engine? Otherwise it doesn’t show any abnormalities, it drives quite normally, but the sound is not normal, definitely not. Does anyone know what that could be? Thanks, Normstar