| The valves are comparatively noisy at first caused by the metal valve guides but they quickly settle in. If you find it disconcerting perhaps you could get a set of nylon guides which will quieten them down..personally I stick with the metals ones and once the horn loses its 'newness' and the oil gets in all the right places they settle in nicely.
The metallic sound on the top of the stroke sounds like either the top or bottom cap isn't screwed all the way down. Take them off and finger tighten them making sure that its not cross threaded and do not force or over tighten them. It shouldn't take any force.
Hope this helps.
Regards,
Trevor |