[Z06] Radiator Drain Plug
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
Radiator Drain Plug
I must have read this 5 times BUT I turned mine and got one drop to come out. Another site said to quarter turn it while pulling on it. Any advice? It's not leaking it just turns. I think I may have affected it by not pushing while I quarter tuned it.
Melting Slicks
Joined: Mar 2004
Posts: 2,390
Likes: 405
From: Horseshoe Bend ID
The OEM plug is a plastic POS. It is supposed to be turned 90 degrees CCW and then pulled out. It has a steel pin which is easy to break off. Napa has a replacement part with easy to turn/pull wings instead of the 1/4" drive on the original.
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
Team Owner
Joined: Sep 2002
Posts: 30,260
Likes: 4,577
From: Bonita Springs, Florida
Be careful turning the fragile petcock to drain the coolant. If the coolant hasn't been changed in a while it may have gunked up the petcock and may not be able to flow out immediately. Don't get too rough with it or you will snap it and need to purchase a new petcock.
http://www.iammoon.com/c5tech/coolant_drain.htm
"Be careful and gentle with the drain valve, as it is a brittle plastic and is easily broken.
Allow the fluid to drain (Figure 3.) until it slows to a trickle. I get about 10 quarts out of a C5 Corvette when I drain one. The GM service manual instructs you to remove the fill-cap on the radiator reservoir before opening the radiator, but I find that I get more fluid out if I leave the cap on.
Close the drain valve by turning the drain valve clockwise until it stops. Do not force the valve. If you have difficulty turning it, try to gently push it in while still trying to turn it."
http://www.iammoon.com/c5tech/coolant_drain.htm
"Be careful and gentle with the drain valve, as it is a brittle plastic and is easily broken.
Allow the fluid to drain (Figure 3.) until it slows to a trickle. I get about 10 quarts out of a C5 Corvette when I drain one. The GM service manual instructs you to remove the fill-cap on the radiator reservoir before opening the radiator, but I find that I get more fluid out if I leave the cap on.
Close the drain valve by turning the drain valve clockwise until it stops. Do not force the valve. If you have difficulty turning it, try to gently push it in while still trying to turn it."
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
Be careful turning the fragile petcock to drain the coolant. If the coolant hasn't been changed in a while it may have gunked up the petcock and may not be able to flow out immediately. Don't get too rough with it or you will snap it and need to purchase a new petcock.
http://www.iammoon.com/c5tech/coolant_drain.htm
"Be careful and gentle with the drain valve, as it is a brittle plastic and is easily broken.
Allow the fluid to drain (Figure 3.) until it slows to a trickle. I get about 10 quarts out of a C5 Corvette when I drain one. The GM service manual instructs you to remove the fill-cap on the radiator reservoir before opening the radiator, but I find that I get more fluid out if I leave the cap on.
Close the drain valve by turning the drain valve clockwise until it stops. Do not force the valve. If you have difficulty turning it, try to gently push it in while still trying to turn it."
http://www.iammoon.com/c5tech/coolant_drain.htm
"Be careful and gentle with the drain valve, as it is a brittle plastic and is easily broken.
Allow the fluid to drain (Figure 3.) until it slows to a trickle. I get about 10 quarts out of a C5 Corvette when I drain one. The GM service manual instructs you to remove the fill-cap on the radiator reservoir before opening the radiator, but I find that I get more fluid out if I leave the cap on.
Close the drain valve by turning the drain valve clockwise until it stops. Do not force the valve. If you have difficulty turning it, try to gently push it in while still trying to turn it."
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
