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:

Changed read end fluid - now it leaks!

Thread Tools
 
Search this Thread
 
Old Mar 15, 2002 | 12:02 AM
  #1  
SDVette's Avatar
SDVette
Thread Starter
Le Mans Master
25 Year Member
Liked
Community Favorite
Top Answer: 5
 
Joined: Jan 2000
Posts: 5,074
Likes: 1,558
From: Poway CA
2025 C1 of the Year - Unmodified Finalist
2024 C1 of the Year Finalist - Unmodified
2023 C1 of the Year Finalist - Unmodified
2022 C1 of the Year Finalist - Unmodified
2019 C1 of Year Finalist (stock)
2019 C1 of Year Finalist (stock)
2016 C1 of Year Finalist
Default Changed read end fluid - now it leaks!

I drained and re-filled my rear end fluid a few days ago. I was smelling gear oil, and sure enough, I lift up the car and it's leaking slightly from the drain plug.

I torqued the drain plug to 27 ft/lbs as specified. I re-torqued it again and we'll see if it leaks again.

I noticed the factory used some red "goo" on the threads of the plugs. Do you think that is why they did it? If so, where can I get the goo?

Thanks,
Reply
Old Mar 15, 2002 | 12:20 AM
  #2  
JWD01's Avatar
JWD01
Melting Slicks
 
Joined: Oct 2001
Posts: 2,480
Likes: 0
From: Wa.
Default Re: Changed read end fluid - now it leaks! (SDVette)

A little bit of silicone sealer on the threads will keep the oil from wicking out. The red goo from the factory is basically the same stuff for exactly that reason . :yesnod:
Reply
Old Mar 15, 2002 | 12:33 AM
  #3  
vetteshop's Avatar
0vetteshop
Former Vendor
 
Joined: Apr 2001
Posts: 10,976
Likes: 21
From: FL
St. Jude Donor '13
Default Re: Changed read end fluid - now it leaks! (SDVette)

The drain plug and fill plug on the rear diff has a thin washer...Make sure you didnt loose it...Never seen sealer on the diff plugs,only the M6 trans plugs :confused:
Reply
Old Mar 15, 2002 | 12:49 AM
  #4  
JWD01's Avatar
JWD01
Melting Slicks
 
Joined: Oct 2001
Posts: 2,480
Likes: 0
From: Wa.
Default Re: Changed read end fluid - now it leaks! (C-5 TECH)

The drain plug and fill plug on the rear diff has a thin washer...Make sure you didnt loose it...Never seen sealer on the diff plugs,only the M6 trans plugs :confused:
You're absolutely right. I was thinking of the transmission not the rear end. :crazy:


[Modified by JWD01, 8:50 PM 3/14/2002]
Reply
Old Mar 15, 2002 | 01:27 AM
  #5  
SDVette's Avatar
SDVette
Thread Starter
Le Mans Master
25 Year Member
Liked
Community Favorite
Top Answer: 5
 
Joined: Jan 2000
Posts: 5,074
Likes: 1,558
From: Poway CA
2025 C1 of the Year - Unmodified Finalist
2024 C1 of the Year Finalist - Unmodified
2023 C1 of the Year Finalist - Unmodified
2022 C1 of the Year Finalist - Unmodified
2019 C1 of Year Finalist (stock)
2019 C1 of Year Finalist (stock)
2016 C1 of Year Finalist
Default Re: Changed read end fluid - now it leaks! (C-5 TECH)

Thanks for the input guys...

I did both fluids at the same time.. You're both right, the red goo is on the trans fill and drain plugs only.

I was careful to save and re-use both washers on the diff. I found it odd that on the diff fill plug, the washer was between the head of the bolt and the little "make sure you use limited-slip additive" tag. Is this correct? I would expect the washer to be against the differential itself :confused:

But I digress... that's not the one that's leaking. Hopefully the re-torque will stop the leak.
Reply
Old Mar 15, 2002 | 02:01 AM
  #6  
aces's Avatar
aces
Melting Slicks
 
Joined: Jan 2002
Posts: 2,192
Likes: 0
Default Re: Changed read end fluid - now it leaks! (SDVette)

If you have teflon tape , use it! Stuff works well.
Reply
Old Mar 15, 2002 | 02:40 AM
  #7  
Avanti's Avatar
Avanti
Race Director
25 Year Member
Community Builder
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 19,965
Likes: 6,770
From: Bonneville Salt Flats
Default Re: Changed read end fluid - now it leaks! (aces)

Right! Teflon tape, BUT don't over tighten (DON'T use factory torque spec with tape) since that stuff is slick. Simply tighten snuggly by hand. :yesnod:
Reply
Old Mar 15, 2002 | 08:11 AM
  #8  
vettenuts's Avatar
vettenuts
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Default Re: Changed read end fluid - now it leaks! (Avanti)

If I remember correctly, this is a face seal and the plug has straight threads so I wouldn't use teflon tape or silicone. I personally would clean everything off good and then re-check to make sure the leak is the plug (mine got on some of the suspension pieces when I drained it). As I remember, the washer is not really crushable so you have have some dirt under it or possibly it has a burr on it. Get a new washer and try that.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Mar 15, 2002 | 08:48 AM
  #9  
John's vette's Avatar
John's vette
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2001
Posts: 2,073
Likes: 4
From: Official Misfit Cooler Owner
Cruise-In III Veteran
Cruise-In IV Veteran
Default Re: Changed read end fluid - now it leaks! (SDVette)

I found it odd that on the diff fill plug, the washer was between the head of the bolt and the little "make sure you use limited-slip additive" tag. Is this correct? I would expect the washer to be against the differential itself :confused:
It goes head of bolt, tag, and then washer. The main reason I remember this is because I did not find the washer until I was trying to refill the diff. I had the plug and tag in my hand and then the washer came loose from the diff. itself.

Jeez is that fill plug a pain in the rear to get off and super hard to retorque. Just not alot of room back there. At least it was for me, those Rhino ramps need to be couple inches higher. :yesnod:
Reply

Get notified of new replies

To Changed read end fluid - now it leaks!





All times are GMT -4. The time now is 12:22 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE