Cooling Issue on ‘66
Thread Starter
Intermediate
Joined: Dec 2005
Posts: 46
Likes: 18
From: Las Vegas Nevada
Cooling Issue on ‘66
Just bought a ‘66 with the 327/300. Drove it home from the dealer yesterday, about 10 miles, pulled into the garage and it immediately puked the coolant out the overflow. I monitored the temp all the way home and it never exceeded 180. Today I pulled the thermostat and it tested good but I replaced it anyway. Took it out to get it up to temp and when I got home it puked out the coolant again. I am suspecting air in the system. Has anyone else seen this in a C2? I have had newer Vette’s that had a bleed valve in the system to purge the air out. Any suggestions appreciated.
Race Director
Joined: Jan 2002
Posts: 15,342
Likes: 2,717
From: Close to DC
C2 of the Year Finalist - Modified 2020
- Have you verified the operating temp at the thermostat housing with a IR gun? Also, it sounds like the system has too much coolant in it. The overflow tank should only be half full cold.
Dennis
Race Director
Joined: Jul 2018
Posts: 10,561
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From: San Antonio, TX/Mahopac, NY
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
Puking is like my Daughter, when she drinks too much she...well...equalizes. As Keith said, the expansion tank should only be half full when cold.
Team Owner
Joined: Jul 2001
Posts: 21,376
Likes: 1,004
From: Various places in Southern California.
Post a pic of your coolant tank and the hoses going to it. I helped a guy whose car had your symptoms--the hoses to the tank were reversed. Let's see your set-up.
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