TheCrazySwede Posted May 16, 2012 Share Posted May 16, 2012 (edited) Dear HybridZ, I would like to thank all who help out us less experienced owners with our Z's. My '77 280Z is my first car, so I am still learning about how these magnificent machines work. I have returned with another question, not to be confused with my dozen other ones. Yesterday, I started hearing squealing whenever I would rev. Gradually revving would be fine, but if I drove or blipped the throttle, I would hear a squeal, very similar to a timing belt squeal. Now, my car is fairly loud at the moment, due to the fact that I ordered a new exhaust kit, but ended up getting the wrong exhaust kit sent to me. This is after I had cut off my Cat-converter to weld it on to the new exhaust. In other words, I am stuck running from my down pipe until I get the exhaust I wanted so that I can weld my Cat onto it. Because of this, it is difficult to hear squealing when driving, especially since my shifter boot quit on me and I can simply look down at my driveshaft, so the exhaust sound is always present. Now, I figured my fan belt was loose or something, so I tightened it up. It doesn't squeal anymore when I rev, but I think I can still hear some squealing when I drive....or perhaps I'm paranoid. My question is this; Could the squealing be present only when driving and not when revving at a stand still? Wouldn't a timing chain rattle instead of squeal? Is there something else here that I could be missing? Another belt/chain? This is the belt I tightened: (Picture is from another 280z, but same engine) Thanks a lot HybridZ, I don't know what I would do without you guys. Such a great community! Edited May 16, 2012 by TheCrazySwede Quote Link to comment Share on other sites More sharing options...
johnc Posted May 16, 2012 Share Posted May 16, 2012 Chains don't squeal. Its your fan belts. They can get glazed and slip even when tight. Time for a new belt. Quote Link to comment Share on other sites More sharing options...
TheCrazySwede Posted May 16, 2012 Author Share Posted May 16, 2012 Chains don't squeal. Its your fan belts. They can get glazed and slip even when tight. Time for a new belt. I figured as much. Is it normal to have it squeal when driving, but not when revving? Before I tightened it, it would squeal even when you rev, but it doesn't do that anymore. Am I just a paranoid driver? I will have the belt replaced, but I don't have time to do it today. The car starts fine, the voltage is fine, AC and everything works, so I should be safe to drive....I hope....right? Thank You for the reply, JohnC! Quote Link to comment Share on other sites More sharing options...
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