Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Oil leak from rear of engine. Pics inside

Thread Tools
 
Search this Thread
 
Old Feb 7, 2008 | 07:21 PM
  #1  
Beyond Static's Avatar
Thread Starter
Launching!
iTrader: (5)
 
Joined: Jul 2005
Posts: 220
Likes: 0
From: denham springs, LA
Default Oil leak from rear of engine. Pics inside

Ran the car at the track, and parked it after the run. Had a nice sized oil puddle under it, coming from between the engine and bellhousing. What do you guys think the problem is? It looks like most of the oil is towards the top right two bolts, and dripping down to the starter area, and then to the ground. Gasket maybe?
Name:  100_1591.jpg
Views: 7100
Size:  139.0 KB
Name:  100_1584.jpg
Views: 4884
Size:  125.2 KB
Name:  100_1588.jpg
Views: 5472
Size:  154.8 KB
Reply
Old Feb 7, 2008 | 07:25 PM
  #2  
oange ss's Avatar
TECH Junkie
20 Year Member
iTrader: (50)
 
Joined: Jan 2005
Posts: 3,241
Likes: 6
From: Texas
Default

looks like oil is gettin pushed passed the rear cover gasket, put a wrench on the bolts to see if they loosened up....
Reply
Old Feb 7, 2008 | 07:29 PM
  #3  
jstero99's Avatar
Teching In
iTrader: (1)
 
Joined: Dec 2007
Posts: 27
Likes: 0
From: Chicago
Default

It looks like just a gasket leak but check to see if the cover is cracked by the bolts maybe over tightened.
Reply
Old Feb 7, 2008 | 07:38 PM
  #4  
Beyond Static's Avatar
Thread Starter
Launching!
iTrader: (5)
 
Joined: Jul 2005
Posts: 220
Likes: 0
From: denham springs, LA
Default

The bolts are tight, and there's no cracks on the cover. I hope it's just the gasket. Is this a common problem?
Reply
Old Feb 7, 2008 | 08:12 PM
  #5  
warp_6's Avatar
On The Tree
iTrader: (2)
 
Joined: Jul 2006
Posts: 146
Likes: 0
From: Moorpark,Ca
Default

Hard to tell in the pics, but it looks like it may be coming from higher up. OPSU, cam sensor, valley cover, and then leaking down the back?
Reply
Old Feb 8, 2008 | 10:38 PM
  #6  
Beyond Static's Avatar
Thread Starter
Launching!
iTrader: (5)
 
Joined: Jul 2005
Posts: 220
Likes: 0
From: denham springs, LA
Default

Picked up a rear cover gasket from GM today, and put it on. I let the car run for about 30 minutes, and no leaking at all. But that's with the car up on stands and no transmission. Once I get the trans rebuilt and installed, I'll see if it leaks under a load.
Reply
Old Feb 9, 2008 | 08:42 PM
  #7  
SonnyG's Avatar
Staging Lane
 
Joined: Jan 2008
Posts: 76
Likes: 0
From: Boston
Default

Rear cover gasket anybody?.....Well when u have the trans reattached I'm sure you will know whats,what......You know you can always consider that engine and trans toast and donate them to me.......
Reply
Old Feb 10, 2008 | 12:37 PM
  #8  
badass99ss's Avatar
TECH Apprentice
15 Year Member
iTrader: (17)
 
Joined: May 2007
Posts: 375
Likes: 1
From: Wenatchee WA
Default

Is this a crack????
Attached Thumbnails Oil leak from rear of engine.  Pics inside-100_1588-1-.jpg  
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 10, 2008 | 12:38 PM
  #9  
badass99ss's Avatar
TECH Apprentice
15 Year Member
iTrader: (17)
 
Joined: May 2007
Posts: 375
Likes: 1
From: Wenatchee WA
Default

You can see it better in your original pics.
Reply




All times are GMT -5. The time now is 12:00 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE