C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Overheating

Thread Tools
 
Search this Thread
 
Old Apr 30, 2008 | 01:03 PM
  #1  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Overheating

I started up the car today for the first time after the winter.

I let the car idle for about 10 min.
Then the car started to boil due to air in the coolant system.
I could se water and steam come out from the t-stat housing, and rear of the intake from the gasget area (where the coolant hoses goes for the converted lt1 intake).
And I could also hear it boil in the radiator.

My first thought where that now need to replace the intake gasget.
BUT after I mange to get all the air out, and then re-torqued the intake bolts ( just to be sure ), I cant se any leaks, and the coolant level does not decrease.
Im I just lucky, or should I repalce the gasget anyways?

Thanks
Reply
Old Apr 30, 2008 | 01:05 PM
  #2  
jhammons01's Avatar
jhammons01
Le Mans Master
10 Year Member
 
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
Default

^^yeah, that shouldn't happen. Something dried up there and became brittle.

Your coolant system is nothing to sneeze at or take lightly. I'd pull that Thermostat as well.
Reply
Old Apr 30, 2008 | 01:20 PM
  #3  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default

Yeah. I changed the t-stat and gasget. I have not chagned the intakegasget yet.
Right now I have test drive the car, and no more overheating. ANd no steam/water is leaking.
But perhaps Its bet to replace that intakegasget anyways
Reply
Old Apr 30, 2008 | 01:59 PM
  #4  
Square's Avatar
Square
Melting Slicks
20 Year Member
 
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
Default

Did you "burp" and "pack" your radiator?

My 86' would always look like the radiator was full, but I would get a "Low Coolant" light. I followed the "Burp & Pack" procedure in the C4 tech notes section here and that fixed me right up.
Reply
Old Apr 30, 2008 | 02:05 PM
  #5  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default

Originally Posted by Square
Did you "burp" and "pack" your radiator?

My 86' would always look like the radiator was full, but I would get a "Low Coolant" light. I followed the "Burp & Pack" procedure in the C4 tech notes section here and that fixed me right up.
Yes m8. I followed the procedure as posted here. And now the temp is stabel. Im just worried about the intake gasget. But so far it seems to keep tight. I cross my fingers...
Reply
Old Apr 30, 2008 | 03:35 PM
  #6  
KoBrah1's Avatar
KoBrah1
Advanced
 
Joined: Nov 2006
Posts: 66
Likes: 0
From: Kempner TX
Default

You need to change the oil and filter too, just in case coolant entered the oil.

Jake
Reply
Old Apr 30, 2008 | 04:11 PM
  #7  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default

mm. your probaly right. But I cant se any water in the oil.. Well as long as dont need to change the intake gasget im a happy guy

Thanks
Reply

Get notified of new replies

To Overheating





All times are GMT -4. The time now is 04:47 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE