LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Condensation or headgasket?

Thread Tools
 
Search this Thread
 
Old Mar 8, 2009 | 02:12 PM
  #1  
Matts94Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (6)
 
Joined: Aug 2006
Posts: 1,213
Likes: 0
From: Charleston, S.C.
Default Condensation or headgasket?

The motor has less than 2k miles on it and has only been started for short periods of time over the last 4 months (less than 10-15mins). The intake did have a bad gasket leak causing the PCV system to not work... therefore there was not any crankcase ventilation. You could put your hand on the oil fill cap while it was running and not get an suction at all.

The oil was a little thinner than usual but did not apppear to have any water in it at all. I do distilled water with water wetter and I noticed that I have not lost a drop of water from my coolant system. The car does not over heat and is not down on power. What do yall think?

I will be putting the new intake on next week and making sure there are no leaks again. I guess all I can do it wait and see if that fixed the problem.

Here are some pics.







Reply
Old Mar 8, 2009 | 02:19 PM
  #2  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

That is an awful lot of moisture. I would suspect something a little worse than just ambient crankcase ventilation.
Reply
Old Mar 8, 2009 | 02:29 PM
  #3  
Matts94Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (6)
 
Joined: Aug 2006
Posts: 1,213
Likes: 0
From: Charleston, S.C.
Default

Anyone ever had something like this happen to them?
Reply
Old Mar 8, 2009 | 02:32 PM
  #4  
LS1 SPEED's Avatar
Banned
iTrader: (22)
 
Joined: Jan 2004
Posts: 4,957
Likes: 2
From: Schaumburg,IL
Default

I would bet it's just condensation as we have seen it many times.

not a good idea to start and run the car for short periods of time and not drive them

this will happen + you can wash the oil with fuel and most likely the reason the oil seemed thinned out

if you still have the oil see if it smells like fuel and if it has antifreeze it would be seperated in the container
Reply
Old Mar 8, 2009 | 02:39 PM
  #5  
riceburnerZ28's Avatar
TECH Fanatic
iTrader: (20)
 
Joined: Oct 2008
Posts: 1,195
Likes: 0
From: Plano, IL
Default

that's just moisture....when cars sits water droplets build up in the oil and is normal. To prevent diluting the oil you should allow the engine to reach normal operating temps so the water can be burned off. If it was a headgasket you would know very quickly ...believe me ! So do a leakdown test to be sure. If it was the gaskets you would smell it in the exhaust ...see air bubbles in the coolant
engine temps be higher then normal ....low coolant light would be on..that's a sign coolant is leaking somewhere....all these things happened to me when I blew my gaskets
Reply
Old Mar 8, 2009 | 02:40 PM
  #6  
Matts94Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (6)
 
Joined: Aug 2006
Posts: 1,213
Likes: 0
From: Charleston, S.C.
Default

Oil smells like fuel for sure, I noticed that once I started to drain it.
Reply
Old Mar 8, 2009 | 06:08 PM
  #7  
LS1 SPEED's Avatar
Banned
iTrader: (22)
 
Joined: Jan 2004
Posts: 4,957
Likes: 2
From: Schaumburg,IL
Default

99% sure you are fine

maybe do a second oil change to be certain it's flushed well

Then I suggest just letting it sit unless you plan to drive it next time.
Reply
Old Mar 8, 2009 | 08:31 PM
  #8  
I_Need_Land's Avatar
11 Second Club
iTrader: (12)
 
Joined: Apr 2007
Posts: 490
Likes: 0
From: Lexington, KY
Default

man. i for sure blew a hg, and as i took it apart this is what i found. my #1 cyl and # 7 pistons were hella clean.




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 Mar 8, 2009 | 11:23 PM
  #9  
3rdgen92maro's Avatar
11 Second Club
15 Year Member
iTrader: (20)
 
Joined: Aug 2006
Posts: 889
Likes: 0
From: Oviedo,Fl/Fairbanks,AK
Default

my valve covers looked exaclty like the OP's, but i had bubbling and frothing coming out of radiator fill. So i yanked the heads
Reply
Old Mar 8, 2009 | 11:35 PM
  #10  
Rick_512's Avatar
Registered User
 
Joined: Mar 2009
Posts: 3
Likes: 0
From: Laredo
Default

Hello everyone...
I am new here and i just bought a 1995 Pontiac Trans AM LT1...
i am looking to find out what the problem is with my car as well, i brought into Laredo, TX on Thursday and it ran pretty good, from the first time i turned it on to test the car, the Mass Air was messed up. I d/c it and brought straight to Laredo from Encinal(about 39 miles), once i got to Laredo it seemed to have heated up and turned off. i waited and turned it back on and parked it...
The next day I turned it on again and it worked OK until it heated up... there was some knocking going on in the engine...
I drained out the oil and did not see any coolant on the oil...BUT THEN i put oil into it again and found that the coolant was mixing with the oil NOW... WHAT COULD IT BE???

There was alot of pressue on the radiator cab once you would turn the car on... but it was spitting coolant out the exhaust... does anyone know what it could be???
Reply
Old Mar 8, 2009 | 11:50 PM
  #11  
rbaksi's Avatar
TECH Regular
iTrader: (2)
 
Joined: Jun 2007
Posts: 421
Likes: 0
Default

dont hijack this thread. Create a new thread for your questions.
Reply
Old Mar 9, 2009 | 12:06 AM
  #12  
I_Need_Land's Avatar
11 Second Club
iTrader: (12)
 
Joined: Apr 2007
Posts: 490
Likes: 0
From: Lexington, KY
Default

oh yea, mine was bubblin in the rad fill cap.

post #10 sounds like a blown hg, after mine hydrolocked trying to start once, it dumped water out the tail pipe.
Reply




All times are GMT -5. The time now is 10:26 AM.

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