1983 720 z24, 5speed. 85,000 miles.
I recently started getting this awful high pitch scraping/grinding sound from the engine, and can't figure it out. I can hear the noise everywhere in the engine compartment so its hard to pinpoint the origin.
Thought it might be a bad pulley or tension-er?
Thought it also could be a worn clutch but it makes the noise in idle, and goes away randomly through all speeds. When i let off the clutch @ high speeds it completely goes away. Also, seems to go away in 5th gear, but it does get a little louder with acceleration.
any help would be greatly appreciated. I will try to post an audio clip of the sound.