Rearend Sounds like a Dogbox: Now Fixed - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 01-08-2014, 10:38 PM   #1
Senior Member
Thread Starter
 
Join Date: Oct 2011
Location: The Race Track & St Pete FL
Posts: 587
Total Cats: 47
Default Rearend Sounds like a Dogbox: Now Fixed

I made a video before i changed the diff

So today I changed out the factory 4:30 Torsen to a 4:10 open diff
Here is what I found










All the pieces have those groves in it. Anyone know what they are part of?



Attached Thumbnails
Rearend Sounds like a Dogbox: Now Fixed-20140108_150032_zpscae09b8f.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_155358_zpsb83786f3.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_165614_zps5397cb33.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_171716_zps85217883.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_183008_zps89275e9d.jpg  

Rearend Sounds like a Dogbox: Now Fixed-20140108_150032_zpscae09b8f.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_155358_zpsb83786f3.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_165614_zps5397cb33.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_171716_zps85217883.jpg   Rearend Sounds like a Dogbox: Now Fixed-20140108_183008_zps89275e9d.jpg  

1993ka24det is offline   Reply With Quote
Old 01-08-2014, 11:34 PM   #2
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

The pieces kind of look like a splined part.

Also holy suspension droop batman.
Leafy is offline   Reply With Quote
Old 01-09-2014, 12:24 AM   #3
Free Moustache Rides
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

Post a closer shot of the broken diff, and the bits, too.
matthewdesigns is offline   Reply With Quote
Old 01-09-2014, 12:52 AM   #4
Senior Member
Thread Starter
 
Join Date: Oct 2011
Location: The Race Track & St Pete FL
Posts: 587
Total Cats: 47
Default

Quote:
Originally Posted by matthewdesigns View Post
Post a closer shot of the broken diff, and the bits, too.
The Ring and pinon looks good with no chips missing, but has ALOTS of play

Ok I will have to take some tomorrow when I could use a better camera

By the way I bought my 93 race car at Colorado Springs
1993ka24det is offline   Reply With Quote
Old 01-09-2014, 01:35 AM   #5
Junior Member
 
Join Date: Mar 2013
Location: Flower Mound, TX
Posts: 235
Total Cats: 26
Default

An '04 would not have a Torsen, but have a Tochigi-Fugi, which is a cone type LSD. The grooved pieces are parts of the cones.

Differential Spotters Guide
EricJ is offline   Reply With Quote
Old 01-09-2014, 02:34 AM   #6
Free Moustache Rides
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

Quote:
Originally Posted by 1993ka24det View Post
The Ring and pinon looks good with no chips missing, but has ALOTS of play

Ok I will have to take some tomorrow when I could use a better camera

By the way I bought my 93 race car at Colorado Springs
Skip the pics, Eric called it.

Recently picked up the race car? Chris S's former car?
matthewdesigns is offline   Reply With Quote
Old 01-09-2014, 04:40 AM   #7
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Quote:
Originally Posted by EricJ View Post
An '04 would not have a Torsen, but have a Tochigi-Fugi, which is a cone type LSD. The grooved pieces are parts of the cones.

Differential Spotters Guide
Indeed, and the failure the OP posted is extremely common with them.

I've seen anecdotal evidence that the typical independent brake testing done on a roller , (where you have the roller spin the rear wheels and you apply the brakes/handbrake. The roller reduces pressure on one side or the other or both to test brake balance and effectiveness of the rear brakes), for MOT tests in the UK are very good at causing this type of damage.

If you have something similar in the US it may be the cause.
richyvrlimited is offline   Reply With Quote
Old 01-09-2014, 08:41 AM   #8
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,847
Total Cats: 1,788
Default

going to an open is sad...
Braineack is offline   Reply With Quote
Old 01-09-2014, 10:17 AM   #9
Elite Member
iTrader: (21)
 
Join Date: Jun 2007
Location: Rochester, NY
Posts: 5,684
Total Cats: 555
Default

Props to EricJ for the info.
rleete is offline   Reply With Quote
Old 01-09-2014, 10:36 AM   #10
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,517
Total Cats: 256
Default

TOCHIGI-FUJI IS THE BEST DIFF
(at least mine is)
soviet is offline   Reply With Quote
Old 01-09-2014, 11:09 AM   #11
Senior Member
Thread Starter
 
Join Date: Oct 2011
Location: The Race Track & St Pete FL
Posts: 587
Total Cats: 47
Default

Quote:
Originally Posted by EricJ View Post
An '04 would not have a Torsen, but have a Tochigi-Fugi, which is a cone type LSD. The grooved pieces are parts of the cones.

Differential Spotters Guide
Thanks Eric for the help, I was so wore out yesterday working on a few cars


Quote:
Originally Posted by Braineack View Post
going to an open is sad...
It does kinda suck but since it is my daily driver, I would rather have the 4:10. And after a rebuild I will be putting it in the Track Car
1993ka24det is offline   Reply With Quote
Old 02-10-2014, 08:49 PM   #12
Junior Member
iTrader: (1)
 
Join Date: Jan 2006
Location: Ontario, Canada
Posts: 84
Total Cats: 0
Default

Just saw this thread and wanted to comment.

I had the same issue last spring, went to change the diff oil and pieces of the cone came out.

Ended up putting a torsen into it. The guy that did the work for me said that it looked like the gears tried to eat some of the parts that we're moving around with the oil. Fingers crossed that the new setup holds up.

I searched online for other posts on this type of failure but your is the first I have seen.

My car was never raced or tracked in any way, I did have some tire hop in the wet with the oem tires.

Any idea on what happened to your?
2004GS 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
Buzzing from driver side of engine bay? (MS3 install) nick470 MEGAsquirt 7 06-16-2017 02:53 PM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 01:42 AM.