My 1984 190E 2.3 5speed with 80k recently started making a weird noise spontaneously. Sometimes when I bring the RPM's <3500-4500> up higher, a strange "blower" noise kicks on. A slight whine is noticeable as well as a loss of power. The car will then remain like this for a period, then return, only to happen later. I describe the noise as though it sounds like a blower kicks on...almost like its the auxilary electric fan or something. Could it be a belt?? Adrian mentioned something about a timing chain tensioner that has been updated 3 times or something around $1200??, could this be related? any ideas?
Also, is there a lightened flyhweel clutch available for this car? Can i use a 16v pressure plate like VW's?