C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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Old Mar 25, 2007 | 12:39 AM
  #21  
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Be careful, the drain valve only opens 90 degrees before pulling out. If you turn it too much, you will shear off the pin(s). A new one costs $5 at NAPA (don't ask how I know).
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Old Mar 25, 2007 | 07:20 PM
  #22  
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I think mine is damaged

I can't do anything with it. Can't pull it, turn it, or whatever.

wtf do I do?
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Old Mar 25, 2007 | 07:25 PM
  #23  
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Originally Posted by pb24dagrk
I think mine is damaged

I can't do anything with it. Can't pull it, turn it, or whatever.

wtf do I do?
Drop the bottom hose.
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Old Mar 25, 2007 | 07:34 PM
  #24  
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Originally Posted by pb24dagrk
I think mine is damaged

I can't do anything with it. Can't pull it, turn it, or whatever.

wtf do I do?

On mine, a 1/4 inch extension on a ratchet was the perfect tool to fit into the 1/4 inch square hole on the plug.
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Old Mar 26, 2007 | 01:12 AM
  #25  
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Originally Posted by pb24dagrk
can anybody tell me how I open the drain ****? It's too narry for me to see what's in there (screw? bolt? or what)
I believe you turn 90 degrees, be careful. I have heard many who have broken this valve
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Old Mar 27, 2007 | 04:24 PM
  #26  
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Originally Posted by toxdoc
On mine, a 1/4 inch extension on a ratchet was the perfect tool to fit into the 1/4 inch square hole on the plug.
The hole in the center is 1/4" square, and I just use a nut-driver handle. Works perfectly for turning.
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Old Mar 27, 2007 | 10:27 PM
  #27  
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Originally Posted by T VETTE
I believe you turn 90 degrees, be careful. I have heard many who have broken this valve
I did, lol


should I just drain it from the hose now? or is it fixable?
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Old Mar 28, 2007 | 09:08 AM
  #28  
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Thank you for the info. I want to do this service for mine, and this helps make sure I get it right. I've never used distilled water before, but will now.

Tim Glover
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Old Mar 28, 2007 | 10:55 AM
  #29  
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Originally Posted by Jim2003
You need to have the rear end higher for draining.

You need the nose higher for filling. This will get the air out of the system.

Your heater should be on high temp and high speed. This will open the heater core. Do not haave the AC system running as this will cuase the value to close to the heater core.
There is no valve that keeps coolant from circulating to the heater core so you don't need the heater running to fill it.
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Old Mar 28, 2007 | 10:56 AM
  #30  
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Originally Posted by pb24dagrk
I did, lol


should I just drain it from the hose now? or is it fixable?
It's fixable and the valve is cheap, right around $5
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