Over-Heating problem 70 Vette
Thread Starter
4th Gear
Joined: Nov 2006
Posts: 4
Likes: 0
Over-Heating problem 70 Vette
Hi there , Just got this 1970 vette which keeps overheating , Has got large electric thermo fan mounted on inside of radiator sucking air inwards plus the original engine fan , Flushed and replaced coolant , Then removed thermostat which helped , but was wondering if having the thermo fan mounted on outside of radiator pushing air in would be better idea
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
There have been recent posts on this subject so I would suggest doing a search. As for removing the therostat, this is not a good idea as your engine may never warm up. One thing that I would check is to see if the seals around the radiator are in place. These force air through the radiator which is important with these Vettes.
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
Originally Posted by Jud Chapin
There have been recent posts on this subject so I would suggest doing a search. As for removing the therostat, this is not a good idea as your engine may never warm up. One thing that I would check is to see if the seals around the radiator are in place. These force air through the radiator which is important with these Vettes.
Racer
Joined: Nov 2001
Posts: 392
Likes: 6
From: Churchville PA
You want to also make sure the fan shroud has not been removed. The above seals and the shroud are necessary for proper cooling. The fact the there is a thermo fan on the car seems to indicate that someone was trying to fix the overheating problem. You shouldn't need this if every cooling part is doing its job.
Thanks.
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
Racer
Joined: Nov 2001
Posts: 392
Likes: 6
From: Churchville PA
Based on the parts and years listed there, it looks like I don't have to worry about it on my '80?
Melting Slicks
Joined: Jul 2004
Posts: 3,296
Likes: 8
From: Avon, Indiana
Does the overheating take place at low speeds/idle or at highway speeds, or both? If the problem is on the freeway, do you have a front-air dam to make sure air is being directed properly, as well as the seals previously mentioned to make sure the air passes through the radiator?
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