Page 1 of 3 123 LastLast
Results 1 to 20 of 47

98 Z28 leaks

This is a discussion on 98 Z28 leaks within the General Help forums, part of the LSx Technical Help Section category; My Camaro is leaking from the rear axle, from what looks like where the axle tube goes into the differential ...

  1. #1
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    98 Z28 leaks

    My Camaro is leaking from the rear axle, from what looks like where the axle tube goes into the differential housing. And from either the oil pan, opposite from the drain plug, or above it. I'm almost certain it's just above it though. for the axle, How can this one be fixed? For the oil pan, what could this be, IF NOT the oil pan gasket itself?

    Thanks in advance

  2. #2
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    From what you are describing, your axle seal is leaking. You will either need to put the car on a lift, or the rearend on jackstands and remove the differential cover to drain the differential.

    Remove wheel from leaking axle.
    Remove brake caliper bolts and rotor from said axle.
    Remove C-clip from exposed differential of leaking axle.
    Remove axle exposing leaky seal and remove.
    Disconnect parking brake from axle along with backing plate.
    You will need a small hammer and a seal remover.
    Replace leaky seal with NEW seal and LIGHTLY tap into axle tube until it sits flush. DO NOT CRUSH THE SEAL.
    Reinstall axle, brake rotor, caliper, then C-clip. Refill axle with fresh gear oil specified by owner's manual.

    As for the oil leak, there is an area above the oil filter that is prone to leaking. I can't remember what it's called, but other members will tell you what it is and if I have missed any steps.
    Last edited by cammed goat; 03-07-2012 at 04:54 PM.

  3. #3
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    Quote Originally Posted by cammed goat View Post
    From what you are describing, your axle seal is leaking. You will either need to put the car on a lift, or the rearend on jackstands and remove the differential cover to drain the differential.

    Remove wheel from leaking axle.
    Remove brake caliper bolts and rotor from said axle.
    Remove C-clip from exposed differential of leaking axle.
    Remove axle exposing leaky seal and remove.
    Disconnect parking brake from axle along with backing plate.
    You will need a small hammer and a seal remover.
    Replace leaky seal with NEW seal and LIGHTLY tap into axle tube until it sits flush. DO NOT CRUSH THE SEAL.
    Reinstall axle, brake rotor, caliper, then C-clip. Refill axle with fresh gear oil specified by owner's manual.

    As for the oil leak, there is an area above the oil filter that is prone to leaking. I can't remember what it's called, but other members will tell you what it is and if I have missed any steps.
    The axle seal is good, i replaced them not too long ago.

    dsc00724l.jpg

    That's where its leaking from.

  4. #4
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    The axle tubes can occasionally leak on cars. Best bet for an easy fix would be to clean it real well -- using spray brake cleaner is probably the best, just be careful you don't get it in your eyes. Then apply either an epoxy or adhesive sealant around the entire perimeter of the axle tube where it attaches to the center section. Not a guaranteed fix, but will most likely remedy the leak if you do a good job.

    The oil pan gasket can leak -- I just replaced ours last weekend. I thought it was a weeping rear main at first but found that to be totally dry. There is also a fitting above the oil filter that is the provision for a factory installed oil cooler. This may also leak over time. Check out the pics in this thread: http://www.ls1.com/forums/f6/k-membe...grades-163761/

  5. #5
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    I've never seen a rearend leak from that spot. This is a first.

  6. #6
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    I have seen it on a few cars... probably first time on an F-body though. Our Monte SS has an axle tube weeping that I need to address.

  7. #7
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    maybe some black RTV?

  8. #8
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,576

    Black & Blue
    '02 WS.6 / '07 Suburban

    Certainly worth a try. Hit it with a small wire brush and brake cleaner and then dry it off with compressed air. Nice thing about RTV is that you can use your finger to force it into the gap and make a nice smooth bead.

  9. #9
    Member WILDKARDBOYZ's Avatar
    Join Date
    Apr 2008
    Location
    williamsport, PA
    Age
    38
    Posts
    119

    puter/blk
    02 CAMARO Z28

    I would try the blk rtv as well hell its worth a shot

  10. #10
    Member WILDKARDBOYZ's Avatar
    Join Date
    Apr 2008
    Location
    williamsport, PA
    Age
    38
    Posts
    119

    puter/blk
    02 CAMARO Z28

    i have found that blk rtv works magic kinda like duck tape but not really lol

  11. #11
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    Quote Originally Posted by WILDKARDBOYZ View Post
    i have found that blk rtv works magic kinda like duck tape but not really lol
    I get it. lol. love the stuff. theres also that permatex rubber sealant, i use it like glue. gets rock hard, fixes almost anything.

    So upon re inspection. it looks like the rear is leaking from the top, pass. side. the driver side was dry. it's hard to aim a phone in there for pictures. lol

  12. #12
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Was the car ever hit from behind? This is weird. Unless the rear is leaking from the vent.

  13. #13
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    Quote Originally Posted by cammed goat View Post
    Was the car ever hit from behind? This is weird. Unless the rear is leaking from the vent.
    not that i know of, clean record. the rear was out of another car. it started leaking after the last gear install. doesnt look like its even seeping out of the pinion.

  14. #14
    Electrical Engineer KMdef9's Avatar
    Join Date
    Jul 2009
    Location
    North of the Motorcity
    Posts
    2,611

    Custom Swirly Black
    2001 WS6 M6

    Tubes typically are pressed into the differential housing, wonder if either had a burr during manufacturing. Honestly besides the rtv or spot welding, there's nothing you can do IMO.
    Last edited by KMdef9; 03-13-2012 at 03:26 PM. Reason: damn autocorrect

  15. #15
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,511

    Navy Blue Metallic
    98 T/A w/a little mods...

    Quote Originally Posted by cammed goat View Post
    I've never seen a rearend leak from that spot. This is a first.
    Mines leaking from there too.


    I hope by the end of summer this will be a forgotten memory. (side project that I'm not ready to post about yet)

  16. #16
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Location
    Paterson/Ridgewood, NJ
    Posts
    11,474

    Phantom Black Metallic
    2004 GTO M6

    Spray that side with brakleen and go over it with the RTV then.

  17. #17
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
    Join Date
    Feb 2009
    Location
    Pittsburgh
    Posts
    9,965

    White
    2008 Hummer H3

    Are your axle seals starting to weep too?

    I had an old chevy pickup that the differential vent had become clogged shut and it began to leak from the base of the axle tube,

    it also began to weep from the axle seal too.

    I have heard of axle hop causing this sort of leak as well as curb shots.

  18. #18
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    Where's the breather on the 10bolt?
    1998 Z28: Bolt-ons, Stage ? 4L60E. 250rwhp@6500Ft (R.I.P 5/1/2013)

    1998 Mystic Teal Trans Am: Bone stock. (In process)

  19. #19
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,511

    Navy Blue Metallic
    98 T/A w/a little mods...

    on the top I believe on the passenger side

  20. #20
    Member JacobLS1's Avatar
    Join Date
    Feb 2011
    Location
    Colorado
    Posts
    109

    Red
    1998 Z28

    That's where it looks like it's coming from..im looking at a stock 10bolt though.. 300$. My 3.73s whine a little anyway.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Leaks
    By oharam in forum Camaro / SS
    Replies: 1
    Last Post: 02-28-2011, 04:48 PM
  2. Help: Hatch leaks
    By 2000dreambird in forum General Help
    Replies: 4
    Last Post: 03-15-2010, 04:30 PM
  3. oil leaks :/ please help
    By Ws6islife in forum General Help
    Replies: 17
    Last Post: 12-21-2009, 02:05 AM
  4. Leaks
    By bb4ninja in forum General Help
    Replies: 3
    Last Post: 02-10-2009, 11:30 AM
  5. how do i fix the leaks
    By CHiCKeN08 in forum Firebird / WS6
    Replies: 1
    Last Post: 08-18-2007, 04:21 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •