Pennock's Fiero Forum
  Totally O/T
  Will a clutch ever "chatter" when its fully engaged?

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Will a clutch ever "chatter" when its fully engaged? by masospaghetti
Started on: 11-20-2014 02:11 PM
Replies: 11 (311 views)
Last post by: Stubby79 on 11-21-2014 11:10 AM
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post11-20-2014 02:11 PM Click Here to See the Profile for masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post
I've felt warped flywheels before and they typically chatter during clutch engagement.

I'm getting a chattering feeling but when the clutch is fully engaged and when the drivetrain is loaded up (heavy acceleration). Happens in all gears. Could be described also as a shimmy, vibration, or wobble. It's a 93 Accord, but it's a fairly general question. Have you ever had clutch chatter like this before? Or do you think its something else?

I feel it in the steering wheel AND in the floor.

I just put new tires on it, made no difference, and have used two different brands of CV axles - no difference. One was Autozone, the other was a local rebuilder. 3 engine mounts were replaced, fourth was inspected good. All front end suspension parts have been replaced too.

Thoughts or opinions? This car is killing my wallet. I'm trying to determine if I have to drop the trans again - or pay someone to do it, since its a completely miserable job.
IP: Logged
PFF
System Bot
Marvin McInnis
Member
Posts: 11599
From: ~ Kansas City, USA
Registered: Apr 2002


Feedback score: N/A
Leave feedback





Total ratings: 227
Rate this member

Report this Post11-20-2014 02:19 PM Click Here to See the Profile for Marvin McInnisClick Here to visit Marvin McInnis's HomePageSend a Private Message to Marvin McInnisEdit/Delete MessageReply w/QuoteDirect Link to This Post
Any way to check/examine the hub and springs in the clutch disc? My guess would be that something's cracked, broken, or missing there.

Have you checked the condition of your motor/transmission mounts and the torque strut (i.e. dog bone)? Certainly worth checking before you split the engine and transmission.

[This message has been edited by Marvin McInnis (edited 11-20-2014).]

IP: Logged
cliffw
Member
Posts: 37835
From: Bandera, Texas, USA
Registered: Jun 2003


Feedback score: N/A
Leave feedback





Total ratings: 292
Rate this member

Report this Post11-20-2014 02:44 PM Click Here to See the Profile for cliffwSend a Private Message to cliffwEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by masospaghetti:
I've felt warped flywheels before and they typically chatter during clutch engagement.

No, you haven't. How could a warped flywheel chatter. It is solid metal.
 
quote
Originally posted by Marvin McInnis:
Any way to check/examine the hub and springs in the clutch disc? My guess would be that something's cracked, broken, or missing there.

That sounds like work.
Which will need to be done anyway.
IP: Logged
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post11-20-2014 03:10 PM Click Here to See the Profile for masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by cliffw:

That sounds like work.
Which will need to be done anyway.


A warped flywheel causes chattering of the clutch...my bad. The flywheel itself doesn't chatter.
IP: Logged
gtjoe
Member
Posts: 385
From: burgaw nc usa
Registered: Feb 2012


Feedback score: (2)
Leave feedback

Rate this member

Report this Post11-20-2014 06:22 PM Click Here to See the Profile for gtjoeSend a Private Message to gtjoeEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have had this happen once, and discovered during disasembly that the flywheel was not too far from escaping its perch on the crankshaft. several bolts were missing and the remaining ones were no longer tight
IP: Logged
maryjane
Member
Posts: 70114
From: Copperas Cove Texas
Registered: Apr 2001


Feedback score: (4)
Leave feedback





Total ratings: 436
Rate this member

Report this Post11-20-2014 07:46 PM Click Here to See the Profile for maryjaneSend a Private Message to maryjaneEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by gtjoe:

I have had this happen once, and discovered during disasembly that the flywheel was not too far from escaping its perch on the crankshaft. several bolts were missing and the remaining ones were no longer tight


Had it happen too /\

I have had a clutch chatter as well (fully engaged) if it was heavily glazed.
IP: Logged
cliffw
Member
Posts: 37835
From: Bandera, Texas, USA
Registered: Jun 2003


Feedback score: N/A
Leave feedback





Total ratings: 292
Rate this member

Report this Post11-20-2014 08:18 PM Click Here to See the Profile for cliffwSend a Private Message to cliffwEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by masospaghetti:
A warped flywheel causes chattering of the clutch.

Perhaps, likely. Think. How did your flywheel all of a sudden get warped ? It didn't.

Will a clutch ever "chatter" when its fully engaged?
It shouldn't.
What kind of vehicle ?
Hydraulic clutch ? Low on blinker fluid clutch master cylinder hydraulic oil ?
Is the (mechanical) clutch adjustable ?
IP: Logged
Stubby79
Member
Posts: 7064
From: GFY county, FY.
Registered: Aug 2008


Feedback score: N/A
Leave feedback





Total ratings: 58
Rate this member

Report this Post11-20-2014 09:56 PM Click Here to See the Profile for Stubby79Send a Private Message to Stubby79Edit/Delete MessageReply w/QuoteDirect Link to This Post
Unless it's slipping, I don't see a fully engaged clutch making any vibrations.

Maybe something else causing vibrations that simply remind you of it. I'd probably first consider something causing a misfire and or improper timing (valve or ignition). Maybe even an EGR or vacuum problem.
IP: Logged
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post11-21-2014 09:13 AM Click Here to See the Profile for masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by cliffw:

Perhaps, likely. Think. How did your flywheel all of a sudden get warped ? It didn't.

Will a clutch ever "chatter" when its fully engaged?
It shouldn't.
What kind of vehicle ?
Hydraulic clutch ? Low on blinker fluid clutch master cylinder hydraulic oil ?
Is the (mechanical) clutch adjustable ?


Its a new flywheel, although the old one also did it.

I tend to agree with you - I have never experienced a bad clutch or flywheel causing vibrations when fully engaged but it was suggested to me by two separate mechanics. It's a 93 Honda accord, hydraulic clutch, new master and slave cylinders, plenty of fluid in there (just checked).

[This message has been edited by masospaghetti (edited 11-21-2014).]

IP: Logged
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post11-21-2014 09:15 AM Click Here to See the Profile for masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post

masospaghetti

2477 posts
Member since Dec 2009
 
quote
Originally posted by Stubby79:

Unless it's slipping, I don't see a fully engaged clutch making any vibrations.

Maybe something else causing vibrations that simply remind you of it. I'd probably first consider something causing a misfire and or improper timing (valve or ignition). Maybe even an EGR or vacuum problem.


That was my gut feeling too, just trying to rule things out.
IP: Logged
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post11-21-2014 09:16 AM Click Here to See the Profile for masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post

masospaghetti

2477 posts
Member since Dec 2009
 
quote
Originally posted by maryjane:


Had it happen too /\

I have had a clutch chatter as well (fully engaged) if it was heavily glazed.


Interesting, so it really can happen.

I sure hope my flywheel isn't about to come loose, that would cause some serious mayhem in that bellhousing
IP: Logged
PFF
System Bot
Stubby79
Member
Posts: 7064
From: GFY county, FY.
Registered: Aug 2008


Feedback score: N/A
Leave feedback





Total ratings: 58
Rate this member

Report this Post11-21-2014 11:10 AM Click Here to See the Profile for Stubby79Send a Private Message to Stubby79Edit/Delete MessageReply w/QuoteDirect Link to This Post
Hmm...if any gears in the transmission (probably on the diff) had sheered off, you might only feel it skipping under heavy load. Can't remember exactly what it sounded or felt like, haven't seen it in a while.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock