tatertoph Posted February 19, 2015 Share Posted February 19, 2015 A lot of times when I downshift from 4th to 3rd I get a sound almost like tires chirping. It can't be that though because I'm shifting around 2000 rpms. I also get the sound sometimes when i just rev the engine in neutral. I think it is something with the rear diff Or in the tranny. The car is a '77 280z with r200 diff Any Ideas? Quote Link to comment Share on other sites More sharing options...
johnc Posted February 19, 2015 Share Posted February 19, 2015 Fan belt. Quote Link to comment Share on other sites More sharing options...
TimZ Posted February 20, 2015 Share Posted February 20, 2015 (edited) Fan belt. I was thinking maybe throwout bearing - does it still make the noise if you rev in neutral with your foot off the clutch pedal? Could also be fan belt as John said. That is definitely easier to fix. If you open the hood and listen you should be able to localize the sound to the front or rear of the engine. ...or just be able to see the fan belt flopping around. Edited February 20, 2015 by TimZ Quote Link to comment Share on other sites More sharing options...
Tony D Posted February 20, 2015 Share Posted February 20, 2015 Crickets in the bearings. (Don't laugh, that is in a Service Report from the Pertamina Balongan Main Air Compressor Overhaul in November 2008!) Quote Link to comment Share on other sites More sharing options...
tatertoph Posted February 20, 2015 Author Share Posted February 20, 2015 I was thinking maybe throwout bearing - does it still make the noise if you rev in neutral with your foot off the clutch pedal? Could also be fan belt as John said. That is definitely easier to fix. If you open the hood and listen you should be able to localize the sound to the front or rear of the engine. ...or just be able to see the fan belt flopping around. , Yep, probably is the throwout bearing, thankayou Quote Link to comment Share on other sites More sharing options...
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