C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Leaky Butt

Thread Tools
 
Search this Thread
 
Old Apr 22, 2014 | 04:17 PM
  #1  
Autobot's Avatar
Autobot
Thread Starter
Racer
10 Year Member
 
Joined: Apr 2005
Posts: 256
Likes: 1
From: Delta BC
Default Leaky Butt

Well, I thought I was okay, but my car has got **** leakage...wish I could give it some imodium or something, but I don't think that will work.

I was getting the car ready to drive for this year when I discovered the issue when I was jacking car up. I did the oil change, etc and took it for a drive, no issues/noise. My plan was to change the diff oil anyways, so I took some pictures yesterday so I could get some help identifying the source. There has never been any oil on the ground, but the oil level was below the bottom of the filler plug, not sure if it was like that from factory or not though.

Question is, where is the source? I am guessing the seals are the most likely spot. Most of the evidence is gone now, it got cleaned when I was changing the oil.
Attached Images       

Last edited by Autobot; Apr 22, 2014 at 04:23 PM.
Reply
Old Apr 22, 2014 | 05:04 PM
  #2  
echelonphoto's Avatar
echelonphoto
Pro
 
Joined: Jun 2010
Posts: 517
Likes: 27
Default

Most likely the axle seals....a pita to change with the rear in the car...but can be done...you have to drop the rear suspension and pop out the half shafts and somehow get your tools in there to remove the old ones ( I used a regular wood chisel to get under the lip of the seal). The new ones just tap in with a large socket as the tapping surface.
Reply
Old Apr 22, 2014 | 06:13 PM
  #3  
Chicago1's Avatar
Chicago1
Race Director
 
Joined: Mar 2008
Posts: 12,413
Likes: 501
From: Rio Rancho NM
Default

http://www.digitalcorvettes.com/foru...d.php?t=101986
http://forums.corvetteforum.com/c5-g...on-photos.html
Reply
Old Apr 22, 2014 | 06:19 PM
  #4  
racebum's Avatar
racebum
Race Director
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2008
Posts: 16,027
Likes: 169
From: oregon
Default

unless it's leaking on the floor i would just check the oil yearly and wait till you do a clutch or have to replace something else.

lot of work for a little seepage...actually it's not even the work. it's the pain in the *** factor unless you drop the rear as mentioned
Reply
Old Apr 23, 2014 | 12:35 AM
  #5  
Autobot's Avatar
Autobot
Thread Starter
Racer
10 Year Member
 
Joined: Apr 2005
Posts: 256
Likes: 1
From: Delta BC
Default

I have been reading all of the previous threads on this and it does seem to be a PITA to do. I think it will be fine if I monitor, but the stupid thing is that it bothers me. If I had time, I would totally tear this apart and not care, but the better half gets impatient if I spend too much time with my mistress lol.

Thanks for the reply's, is there a way to confirm that it is the output seals and not the sides, what are the symptoms of a stuck breather?

Thanks guys.
Reply
Old Apr 23, 2014 | 12:52 AM
  #6  
SG Lou's Avatar
SG Lou
Safety Car
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2010
Posts: 3,938
Likes: 497
From: Fords, NJ
Default

Originally Posted by Autobot
I have been reading all of the previous threads on this and it does seem to be a PITA to do. I think it will be fine if I monitor, but the stupid thing is that it bothers me. If I had time, I would totally tear this apart and not care, but the better half gets impatient if I spend too much time with my mistress lol.

Thanks for the reply's, is there a way to confirm that it is the output seals and not the sides, what are the symptoms of a stuck breather?

Thanks guys.
While it is a PITA, to a degree, the biggest PITA that I found was breaking loose the bolts that hold the Bearing Hub assembly to the knuckle. I had replacement knuckles with new ball joints for all 4 corners so everything got taken apart. You might be able to pull the 1/2 shaft out of the diff. without having to take the hub assembly off.
Reply
Old Apr 23, 2014 | 02:32 AM
  #7  
78GEN3's Avatar
78GEN3
Racer
10 Year Member
 
Joined: Apr 2010
Posts: 266
Likes: 10
From: Noble OK
Default

Originally Posted by SG Lou
While it is a PITA, to a degree, the biggest PITA that I found was breaking loose the bolts that hold the Bearing Hub assembly to the knuckle. I had replacement knuckles with new ball joints for all 4 corners so everything got taken apart. You might be able to pull the 1/2 shaft out of the diff. without having to take the hub assembly off.
You can, I have my trans/diff out right now replacing seals. I took the knuckles loose at the upper ball joint and left the axles attached to the hubs when I dropped the cradle.
Reply
Old Apr 23, 2014 | 02:51 AM
  #8  
SG Lou's Avatar
SG Lou
Safety Car
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2010
Posts: 3,938
Likes: 497
From: Fords, NJ
Default

Originally Posted by 78GEN3
You can, I have my trans/diff out right now replacing seals. I took the knuckles loose at the upper ball joint and left the axles attached to the hubs when I dropped the cradle.
There ya go !
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Apr 24, 2014 | 05:49 AM
  #9  
_zebra's Avatar
_zebra
Le Mans Master
10 Year Member
Veteran: Air Force
 
Joined: Oct 2010
Posts: 7,373
Likes: 1,128
From: cold & windy
Default

and if it's leaking thinner red fluid in the center like mine was, it's probably because the trans-diff mounting surfaces don't have a gasket. it was a little less of a pain to fix, but you basically can remedy the situation by prying the two apart a little bit & running a bead of black RTV around the rim & then bolting it back together.
Reply
Old Apr 25, 2014 | 01:14 AM
  #10  
78GEN3's Avatar
78GEN3
Racer
10 Year Member
 
Joined: Apr 2010
Posts: 266
Likes: 10
From: Noble OK
Default

Originally Posted by _zebra
and if it's leaking thinner red fluid in the center like mine was, it's probably because the trans-diff mounting surfaces don't have a gasket. it was a little less of a pain to fix, but you basically can remedy the situation by prying the two apart a little bit & running a bead of black RTV around the rim & then bolting it back together.
If the trans to diff flange is leaking red fluid there is a failure of the output seal.
The trans to diff has an o-ring which seals against diff fluid, not trans fluid.

You are probably thinking of the trans extension to trans flange which does not have a gasket, and would leak trans fluid.
Reply
Old Apr 25, 2014 | 11:22 PM
  #11  
_zebra's Avatar
_zebra
Le Mans Master
10 Year Member
Veteran: Air Force
 
Joined: Oct 2010
Posts: 7,373
Likes: 1,128
From: cold & windy
Default

yeah, there
Reply
Old Apr 27, 2014 | 08:10 PM
  #12  
gairno's Avatar
gairno
Burning Brakes
10 Year Member
 
Joined: Apr 2004
Posts: 866
Likes: 1
From: Bakersfield, Blown 402 Z06 Ca
Default

Originally Posted by Autobot
Well, I thought I was okay, but my car has got **** leakage...wish I could give it some imodium or something, but I don't think that will work.

I was getting the car ready to drive for this year when I discovered the issue when I was jacking car up. I did the oil change, etc and took it for a drive, no issues/noise. My plan was to change the diff oil anyways, so I took some pictures yesterday so I could get some help identifying the source. There has never been any oil on the ground, but the oil level was below the bottom of the filler plug, not sure if it was like that from factory or not though.

Question is, where is the source? I am guessing the seals are the most likely spot. Most of the evidence is gone now, it got cleaned when I was changing the oil.

If you want to see some pictures of one being done me and my buddy use to do this all the time. It would take us about 5 hours to do. You can check out the pictures on his web page. Californiacorvettecustoms.
Go down and on the left side it will say C5 Rear Differential Leak Repair.
Reply
Old Apr 27, 2014 | 08:29 PM
  #13  
Smoken1's Avatar
Smoken1
.
Supporting Lifetime Gold
10 Year Member
St. Jude 10 Year Donor
Liked
Community Favorite
 
Joined: Apr 2013
Posts: 5,010
Likes: 1,142
From: Oregon
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
Default

I can see you getting in deep **** doing this on CA streets with all the BS laws there
Reply
Old Jun 18, 2014 | 05:46 PM
  #14  
Biotex's Avatar
Biotex
Instructor
 
Joined: Mar 2014
Posts: 205
Likes: 0
From: Alpine TX
Default

Originally Posted by gairno
If you want to see some pictures of one being done me and my buddy use to do this all the time. It would take us about 5 hours to do. You can check out the pictures on his web page. Californiacorvettecustoms.
Go down and on the left side it will say C5 Rear Differential Leak Repair.
If I was to drop the rear as done in the step by step procedure listed in the CaliforniaCustoms website to replace the seals, would an alignment need to be done after reassembly?
Sorry if this is a stupid question.
Reply
Old Jun 19, 2014 | 01:07 AM
  #15  
onlyavette's Avatar
onlyavette
Pro
 
Joined: Aug 2012
Posts: 568
Likes: 1
From: Fresno California
Default

I am curious to know how long it has been since that was cleaned? That is what mine looked like when I bought it. It had 80k on it. I cleaned it right after I brought it home and it is still clean after 12k miles.
Reply

Get notified of new replies

To Leaky Butt





All times are GMT -4. The time now is 09:28 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE