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

Crap my LT1 overheated!

Thread Tools
 
Search this Thread
 
Old Jul 1, 2009 | 09:09 PM
  #1  
emj2006's Avatar
Thread Starter
TECH Regular
iTrader: (5)
 
Joined: Mar 2006
Posts: 473
Likes: 0
From: Wichita, KS
Default Crap my LT1 overheated!

Well for a while my temp gauge was reading about 210 which was a little bit over the 180 thermostat.. then today it went to the deadly redline temperature and yup...water shooting all over the place. The thing is though my service engine light was blinking(therefore misfiring) so I'm assuming that it has to be the water pump.. is there a way to tell if its the water pump thats causing the problem?? I'm pretty sure it is because it was leaking throughout the pump
Reply
Old Jul 1, 2009 | 10:58 PM
  #2  
alaureano's Avatar
On The Tree
 
Joined: Mar 2008
Posts: 101
Likes: 0
From: naples fl
Default

man i hope the splines on the water pump are ok. i had a problem like that and found that the splines on the shaft of the pump and the splines coming out the timing cover were worn out. i didnt have time to take everything apart so i installed an electric water pump instead. have you checked you basics like the fans and thermostat? it sure sound like the problem i had.

Last edited by alaureano; Jul 1, 2009 at 11:13 PM.
Reply
Old Jul 1, 2009 | 11:07 PM
  #3  
fleetmgr's Avatar
TECH Addict
 
Joined: Jun 2009
Posts: 2,012
Likes: 0
From: Tulsa, OK
Default

Sounds like your water pump was peeing all over the Opti. Did you look at the weep hole to check?
Reply
Old Jul 1, 2009 | 11:54 PM
  #4  
emj2006's Avatar
Thread Starter
TECH Regular
iTrader: (5)
 
Joined: Mar 2006
Posts: 473
Likes: 0
From: Wichita, KS
Default

where exactly is that weep hole located??
Reply
Old Jul 2, 2009 | 04:50 AM
  #5  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

Originally Posted by emj2006
where exactly is that weep hole located??
It is located behind the water pump in the center. It's a small hole directly above your optispark.
Reply
Old Jul 2, 2009 | 10:26 AM
  #6  
djjab57's Avatar
TECH Addict
15 Year Member
iTrader: (17)
 
Joined: Jul 2007
Posts: 2,496
Likes: 0
From: Texas
Default

Hope it didnt get hot enough to warp the heads, if it did you will have to take them off and have them milled
Reply
Old Jul 2, 2009 | 10:32 AM
  #7  
SlideRight's Avatar
Staging Lane
 
Joined: May 2009
Posts: 51
Likes: 0
From: Houston
Default

Did your opti survive? I hope so =/
Reply
Old Jul 2, 2009 | 01:32 PM
  #8  
emj2006's Avatar
Thread Starter
TECH Regular
iTrader: (5)
 
Joined: Mar 2006
Posts: 473
Likes: 0
From: Wichita, KS
Default

I would assume that the heads are fine(I sure hope so! lol) but the opti I'm probably going to have to say no!! lol.. if it did I'll probably replace it while I'm at it also
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Jul 2, 2009 | 01:35 PM
  #9  
1badzee's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

Originally Posted by RamAir95TA
It's a small hole directly above your optispark.
GM con artists at their best
Reply
Old Jul 2, 2009 | 04:42 PM
  #10  
LT1's Avatar
LT1
TECH Fanatic
20 Year Member
Photogenic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,624
Likes: 4
From: NorCal
Default

I think guys at GM were drunk when they designed the LT1.
Reply
Old Jul 2, 2009 | 04:51 PM
  #11  
1badzee's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

The guy who designed the weep hole had cotton mouth
Reply
Old Jul 2, 2009 | 05:36 PM
  #12  
nik1703's Avatar
TECH Resident
15 Year Member
 
Joined: Oct 2008
Posts: 966
Likes: 0
From: Redondo Beach, CA
Default

i couldnt think of a worse design.

lets put the rain gutter drain directly over our TV and hope it doesnt rain!
Reply




All times are GMT -5. The time now is 10:25 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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