Grinding sound when revved in neutral.

[JMiller]

When i rev to 4500rpm or higher in neutral i hear this loud grinding sound, sounds almost like a blender. I have a full 3in TBE and this grinding sound is louder. I never really had this issue until a few months after i put in my ACT 2100 clutch kit and ACT lightweight flywheel. Is the sound I'm hear clutch drag or something else. Any help will due.

Thanks.

Also if i push in the clutch when this sound occurs i can feel like a vibration in the pedal.

 

[gingerbredman00]

shot in the dark here, maybe your flywheel bolts are loose and letting your flywheel/clutch wobble and scrape the bellhousing?

 

[JMiller]

Maybe, i hope someone who has had this happen to them reads this and can help. Thanks for the suggestion gingerbredman00

 

[cabbageman97]

With lightweight flywheels there will be sort of a chatter to it. But nothing that you'll be able to hear over any exhaust. Possibly the tob catching the fingers on the pressure plate. Does it only make the sound in nuetral? What was your pressure plate torqued down to?

 

[JMiller]

Yes it only makes the sound in Neutral. It does it when I'm coasting in N or when its parked and when the clutch was done i got new flywheel bolts and torqued them to spec.

 

[dented_coffee]

my friends honda did that and we changed the pressure plate and throw out bearing. it hasnt made that noise anymore. maybe by us doing that we tightened a bolt that was loose.

 

[JMiller]

I think its either my clutch isnt adjusted right or the throw out bearing is bad, because when i start sometimes i can hear a light scraping sound until i tap the clutch then it goes away.

 

[dented_coffee]

try an extended clutch push rod. it sounds to me like its a wore out pressure plate. if its oem you want extedy makes the oem clutch in the eclipse.

 

[cabbageman97]

The scraping noise is your TOB. I have had the same problem twice before. And you got me on the OP. I can't think of anything that would be that loud WITHOUT being in gear. Something with the input shaft? TOB rattling on it?? Sorry I couldn't be any better help.

 

[tjbiker031]

Is the clutch fork adjusted properly? Sounds to me like your TOB acting up...

 

[JMiller]

Its an ACT 2100 plate with a street disc and ACT lightweight flywheel and oem TOB, its been on the car for maybe 3000 miles, before that i had the Exedy kit and it didn't make the sound. I think my clutch is not adjusted correctly. Thanks everyone for trying to help me diagnose this issue.

 

[Ravewolf]

Its an ACT 2100 plate with a street disc and ACT lightweight flywheel and oem TOB, its been on the car for maybe 3000 miles, before that i had the Exedy kit and it didn't make the sound. I think my clutch is not adjusted correctly. Thanks everyone for trying to help me diagnose this issue.

Maybe a clutch spring popped out and it's griding itself and your new clutch to oblivion? Or maybe the starter gear is hung up? Hate to be the bearer of bad news but since no one else threw those up I thought I might.
Also, mine own car sounded like a metal lathe when sitting in neutral as well. Looking at my clutch, some of the springs looked shiny and flat as if they were rubbing/grinding, and I found aluminum shavings in the bellhousing. Also, tob was stiff. Maybe we share the same problem?

 

[Grimey]

I had the same problem with my 95 GS. My throwout bearing was no good so I replaced it and no more rattling. Hopefully for you it is also a simple fix.

 

[JMiller]

I get that lathe sound When I start it but I just tap the clutch pedal and it goes away. I'm saving up to get a whole new clutch setup. Hopefully it won't grind itself to oblivion.

 

[GsXtC21]

Yep, loud noises while in neutral is more than likely your TOB....

Try adjusting your clutch pedal (according to jacks video) and see if that helps