82 corvette over heating and hood problem
Thread Starter
Racer
Joined: Nov 2007
Posts: 302
Likes: 0
Thread Starter
Racer
Joined: Nov 2007
Posts: 302
Likes: 0
Thread Starter
Racer
Joined: Nov 2007
Posts: 302
Likes: 0
Le Mans Master
Joined: Jun 2007
Posts: 7,666
Likes: 1
From: Where it's always hot as Hell-South Louisiana.
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
A very COMMON problem with a new radiator/hose/t-stat,etc... installation is there will be air left in the system. It only takes a small amount of air space in the cooling system to make it run hot (as you described).
Try this:
With a cold engine, remove the rad cap. Start the engine and let it idle. Stand ready with a water hose running ......Wait...... When the t stat opens (motor reaches 180 or operating temp) , the water level in the rad. will drop some. Add water at this point, fill to top then install the cap. Add water to the overflow tank to the "HOT" level at this time.
This will either solve the problem, or eliminate one variable.
Also, a 50/50 mix of water/antifreeze-coolant is the desirable mix . Do you have this?
If the rad cap is NOT new, chunk it and get a new one. Best $6 you'll spend tracking down an overheat problem.
Try this:
With a cold engine, remove the rad cap. Start the engine and let it idle. Stand ready with a water hose running ......Wait...... When the t stat opens (motor reaches 180 or operating temp) , the water level in the rad. will drop some. Add water at this point, fill to top then install the cap. Add water to the overflow tank to the "HOT" level at this time.
This will either solve the problem, or eliminate one variable.
Also, a 50/50 mix of water/antifreeze-coolant is the desirable mix . Do you have this?
If the rad cap is NOT new, chunk it and get a new one. Best $6 you'll spend tracking down an overheat problem.
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
The spring in the lower rad hose is on the inside and should come with the hose. I don't know if all corvette hoses had them but every hose I've bought for my '79 had one, although I've only bought two over the years.
Instructor
Joined: Sep 2008
Posts: 216
Likes: 0
From: Eugene OR
I got the hose here:
http://www.ecklers.com/corvette-radi...1969-1972.html
...But I'm sure it's not the only source
http://www.ecklers.com/corvette-radi...1969-1972.html
...But I'm sure it's not the only source
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Who know why some people do the things they do? One thing you can try is to drain the coolant and with the hoses off of the radiator, pump water from a garden hose into the top of the radiator, and look down in where the radiator cap goes on, see if the water is flowing evenly thru all the crossover tubes.
Scott
Instructor
Joined: Sep 2008
Posts: 216
Likes: 0
From: Eugene OR
Who know why some people do the things they do? One thing you can try is to drain the coolant and with the hoses off of the radiator, pump water from a garden hose into the top of the radiator, and look down in where the radiator cap goes on, see if the water is flowing evenly thru all the crossover tubes.
Scott
Scott
And pull your block drains while you're doing it. Run that hose until nothing but clear comes out the bottom. Unless you've done this recently, you'll be surprised how much goo comes out.
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Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
Its not the case. The electric fans work very well. The problem they are designed to remedy is the lack of airflow when idling in traffic. There is not enough vehicle speed or engine rpm to create enough airflow for adequate engine cooling. In those circumstances the electric fan will kick in to provide the necessary airflow.
Instructor
Joined: Sep 2008
Posts: 216
Likes: 0
From: Eugene OR
I figured I'd add this, even though it's a wee-bit off topic. I had cooling problems for a long time, and finally it was a group of small fixes that fixed it.
1. Aluminum radiator
2. Two 1600 CFM electric fans (second comes on at 185 degrees)
3. Lower hose w/spring
4. Hi-flow water pump
5. 160 degree thermostat
6. Chin scoop (best bang for the buck)
7. 30/70 coolant/water mix
All of this keeps me down to about 200 degrees on a hot day while I'm flogging it. Normal operating temp runs around 190. I'm adding water wetter this summer as well. Hoping to get things down to about 195 under my flog-foot on a hot day.
>>My $.02. Maybe it will help<<
1. Aluminum radiator
2. Two 1600 CFM electric fans (second comes on at 185 degrees)
3. Lower hose w/spring
4. Hi-flow water pump
5. 160 degree thermostat
6. Chin scoop (best bang for the buck)
7. 30/70 coolant/water mix
All of this keeps me down to about 200 degrees on a hot day while I'm flogging it. Normal operating temp runs around 190. I'm adding water wetter this summer as well. Hoping to get things down to about 195 under my flog-foot on a hot day.
>>My $.02. Maybe it will help<<
