coolant drain ???
Thread Starter
Racer
Joined: Jul 2001
Posts: 455
Likes: 2
From: manahawkin,nj
coolant drain ???
Recently tried to drain & refill the coolant when I opened the drain on the radiator only got out one gal. am I missing something or is there something else I need to do.....Help!!!
Team Owner
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Drain and fill procedure:
Make sure engine is cool, remove radiator fill cap
Open radiator drain ****
Allow to drain completely
Close drain ****.
Fill system thru surge tank opening
********Fill half the system with 100% Dex Cool
********Add clean water till it reaches the base of the neck.
Start engine and idle for 1 minute
Replace surge tank cap
Cycle engine RPM from idle to 3000 in 30 second intervals until coolant temp reaches 99 degrees
Shut off engine
Remove surge tank cap
Start engine
Idle for 1 minute and fill surge tank to ½ inch ABOVE Full Cold mark on tank
Install surge cap
Cycle engine again idle to 3000 RPM in 30 second intervals until temp reaches 99 degrees
Shut off engine
Top off coolant as necessary ½ inch ABOVE FULL COLD mark on tank
Make sure engine is cool, remove radiator fill cap
Open radiator drain ****
Allow to drain completely
Close drain ****.
Fill system thru surge tank opening
********Fill half the system with 100% Dex Cool
********Add clean water till it reaches the base of the neck.
Start engine and idle for 1 minute
Replace surge tank cap
Cycle engine RPM from idle to 3000 in 30 second intervals until coolant temp reaches 99 degrees
Shut off engine
Remove surge tank cap
Start engine
Idle for 1 minute and fill surge tank to ½ inch ABOVE Full Cold mark on tank
Install surge cap
Cycle engine again idle to 3000 RPM in 30 second intervals until temp reaches 99 degrees
Shut off engine
Top off coolant as necessary ½ inch ABOVE FULL COLD mark on tank
Team Owner
Joined: Dec 1999
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I believe in the Beer Fairy
I don't recall but I don't think it holds much more than that if that much...don't have my manual in front of me.....I think when I refilled mine it didn't take the whole gallon of DEXCOOL premix
Racer
Joined: Apr 2004
Posts: 472
Likes: 0
From: Hartland WI
I just drained mine recently. I think the entire cooling system holds 12 qts of coolant. When I drained mine I got out about 10 quarts (a little over 2 gallons). I did have my front wheels up on ramps and to get the last couple of quarts out I jacked up the rear end so it was a little higher than the front end but it drained at least 7-8 qts before I had to do this. You should be getting out a lot more than just 1 gallon. Did you open the fill cap when you drained it?
Racer
Joined: Apr 2004
Posts: 472
Likes: 0
From: Hartland WI
white top -
check out this thread about coolant change.
http://forums.corvetteforum.com/show...nge&forum_id=1
About 3/4 through the thread there is a post by jimcork1 and he says he got out about 11qts. If you're only getting out 4 qts I don't think that is normal.
check out this thread about coolant change.
http://forums.corvetteforum.com/show...nge&forum_id=1
About 3/4 through the thread there is a post by jimcork1 and he says he got out about 11qts. If you're only getting out 4 qts I don't think that is normal.
Melting Slicks
Joined: Sep 2003
Posts: 2,458
Likes: 105
From: Northville Michigan
Jerry,
In addition to the radiator drain ****, there are drain plugs on each side of the block that must be removed to get the coolant out of the engine block. These plugs are extremely difficult to get to without removing the exhaust manifolds and starter. In addition, once you have the radiator and block drained, you should take an air hose an blow the coolant out of the heater core.
Good luck.
In addition to the radiator drain ****, there are drain plugs on each side of the block that must be removed to get the coolant out of the engine block. These plugs are extremely difficult to get to without removing the exhaust manifolds and starter. In addition, once you have the radiator and block drained, you should take an air hose an blow the coolant out of the heater core.
Good luck.
Racer
Joined: Apr 2004
Posts: 472
Likes: 0
From: Hartland WI
Originally Posted by Pumba
Jerry,
In addition to the radiator drain ****, there are drain plugs on each side of the block that must be removed to get the coolant out of the engine block. These plugs are extremely difficult to get to without removing the exhaust manifolds and starter. In addition, once you have the radiator and block drained, you should take an air hose an blow the coolant out of the heater core.
Good luck.
In addition to the radiator drain ****, there are drain plugs on each side of the block that must be removed to get the coolant out of the engine block. These plugs are extremely difficult to get to without removing the exhaust manifolds and starter. In addition, once you have the radiator and block drained, you should take an air hose an blow the coolant out of the heater core.
Good luck.
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Team Owner
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if you do the flush and fill you should get what you need..I think we are all on a different page here 
Radiator only probably 4 qts..entire system definetly more
Radiator only probably 4 qts..entire system definetly more
Pro
Joined: Apr 2005
Posts: 666
Likes: 5
From: Mt. Pleasant SC
I replaced my coolant last week and I was able to drain 8 qts from the petcock at the bottom of the radiator. Since I had the car up on ramps I had to use a pump to get about 1 pint that settled in the rear of the surge tank. the Dex-Cool was in good shape so I didn't need to flush. Btw, if you do flush, don't use anything other then water. Flush products can have a bad reaction with Dex-Cool and cause major problems with gaskets, etc.
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
I got about 11 quarts from mine. It was very clean, shop manual says if it is clean there is no reason to flush system. I did not flush the system. Changed mine at 5 years, but only about 60,000 miles.
Be careful when opening drain valve, it only turns 90 degrees and then pops out. If you turn further you will break it (experience talking). New ones are under $5.00.
Be careful when opening drain valve, it only turns 90 degrees and then pops out. If you turn further you will break it (experience talking). New ones are under $5.00.