Odd noise when pushing the clutch in. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 04-18-2012, 11:40 PM   #1
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default Odd noise when pushing the clutch in.

I am getting a odd groaning noise from my drivetrain (when stopped) on two occasions:
1) when I push the clutch in and the shifter is in neutral
2) (with the clutch in) when I put the shifter into gear and sometimes when I move it off center.

Its usually momentary and not particularly scary, but I feel like its a sign of future problems?
It seems clutch related, but I am confused as to what cause a groaning/grinding like noise when I push the clutch in. Any advice? Is my trans bout to go boom?

99, 5-speed with 71k miles.
Seefo is offline   Reply With Quote
Old 04-19-2012, 12:02 AM   #2
Elite Member
 
Join Date: Mar 2010
Location: Detroit
Posts: 1,524
Total Cats: 27
Default

Throw out bearing or damaged release lever?
flounder is offline   Reply With Quote
Old 04-19-2012, 09:45 AM   #3
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

I am doubtful its throw out bearing, they tend to make a higher pitch noise right? This almost sounds like a very light grinding. what is the release lever? Excuse my lack of knowledge on transmissions!

...is release lever another term for clutch fork?
Seefo is offline   Reply With Quote
Old 04-19-2012, 10:09 AM   #4
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,684
Total Cats: 555
Default

Yes. Grease the end where the slave pushes on it.
rleete is offline   Reply With Quote
Old 04-19-2012, 11:06 AM   #5
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

Quote:
Originally Posted by rleete View Post
Yes. Grease the end where the slave pushes on it.
Thats not it. Thats a squeak or a chirp, but nothing like the noise I am hearing.
Seefo is offline   Reply With Quote
Old 04-21-2012, 06:20 AM   #6
Junior Member
 
Join Date: Nov 2010
Location: Santa Monica, CA
Posts: 74
Total Cats: 1
Default

Might be the pilot bearing. My car was doing the same thing (progressively worse to the point that I had trouble putting it into gear). Thought it was the release bearing till I dropped the trans. Clutch system was brand new. P.O. or mechanic forgot to change the pilot bearing and it was rusted out. d'oh! Replaced the $10 part and reassembled. problem gone.
customfab87 is offline   Reply With Quote
Old 04-21-2012, 11:12 AM   #7
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

Quote:
Originally Posted by customfab87 View Post
Might be the pilot bearing. My car was doing the same thing (progressively worse to the point that I had trouble putting it into gear). Thought it was the release bearing till I dropped the trans. Clutch system was brand new. P.O. or mechanic forgot to change the pilot bearing and it was rusted out. d'oh! Replaced the $10 part and reassembled. problem gone.
Yea, I am getting the pilot bearing suggestion. Interesting, the noise is getting from frequent and its getting hard to shift into first. I got some work to do on this car very soon. :/
Seefo is offline   Reply With Quote
Old 07-13-2012, 03:32 PM   #8
Newb
 
Join Date: Jul 2012
Posts: 6
Total Cats: 0
Default

Any news on this? I've got a 99 with the same thing happening. Very angry sounding grinding when sitting with the clutch in
bucko3the7man is offline   Reply With Quote
Old 07-13-2012, 03:42 PM   #9
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Do your tranny-slave a favor and grease your push-rod.
hustler is offline   Reply With Quote
Old 07-13-2012, 03:48 PM   #10
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

this?

Braineack is offline   Reply With Quote
Old 07-13-2012, 03:50 PM   #11
Newb
 
Join Date: Jul 2012
Posts: 6
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
this?

No, it's much more like metal grinding. Somewhat like this:
bucko3the7man is offline   Reply With Quote
Old 07-13-2012, 03:52 PM   #12
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

TOB might be on its way out then.
Braineack is offline   Reply With Quote
Old 07-13-2012, 03:55 PM   #13
Newb
 
Join Date: Jul 2012
Posts: 6
Total Cats: 0
Default

You can feel the grinding in the shifter when it makes that noise if that helps the diagnosis at all. I've been looking around and it seems to be pilot bearing, throwout bearing or i've seen one or two suggestions that it's the shafts of the gears in the transmission. Local shop I brought it to was very convinced it's the shafts of the gears in the transmission.
bucko3the7man is offline   Reply With Quote
Old 07-13-2012, 04:53 PM   #14
Newb
 
Join Date: Jul 2012
Posts: 6
Total Cats: 0
Default

to be clear, this is a grinding noise, not a groaning.
bucko3the7man is offline   Reply With Quote
Old 07-13-2012, 06:12 PM   #15
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by bucko3the7man View Post
to be clear, this is a grinding noise, not a groaning.
Throw out bearing. It's past dry and now is eating itself.
Stein is offline   Reply With Quote
Old 07-13-2012, 06:18 PM   #16
Newb
 
Join Date: Jul 2012
Posts: 6
Total Cats: 0
Default

Quote:
Originally Posted by Stein View Post
Throw out bearing. It's past dry and now is eating itself.
Even though it happens when the clutch is pushed in? The way I make the sound is by pushing the clutch in and then shifting. You can feel the vibrations in the shifter and it's quite loud, very much unlike the first video posted.
bucko3the7man is offline   Reply With Quote
Old 07-13-2012, 06:24 PM   #17
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by bucko3the7man View Post
Even though it happens when the clutch is pushed in?
That's when the throw out bearing is being used-when the clutch is in, so yes. It's so bad that it's shuddering the whole tranny/shifter.

Time to pull the trans.
Stein is offline   Reply With Quote
Old 07-14-2012, 09:23 PM   #18
I'm Miserable!
iTrader: (1)
 
Join Date: Jan 2008
Posts: 203
Total Cats: 8
Default

Quote:
Originally Posted by bucko3the7man View Post
Any news on this? I've got a 99 with the same thing happening. Very angry sounding grinding when sitting with the clutch in
I'm pretty sure it was the pilot. Track definitely knows, though.
GAMO is offline   Reply With Quote
Old 07-15-2012, 02:41 PM   #19
Elite Member
Thread Starter
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

It was the bearing that goes into the flywheel/on the flywheel side. I can't remember the name. I have replaced it and now all is happy with the transmission.
Seefo is offline   Reply With Quote
Old 07-15-2012, 07:33 PM   #20
Junior Member
iTrader: (3)
 
Join Date: Jun 2012
Location: N/A
Posts: 84
Total Cats: -14
Default

Sounds like the throw out bearing to me. Must be on its last leg.
Racemiata is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
ACT race clutch and AASCO 7lb. aluminum flywheel graexodus Miata parts for sale/trade 5 10-26-2015 02:48 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:37 AM.