Draining Radiator

Reply Subscribe

Thread Tools

Search this Thread

May 22, 2005 | 02:51 PM

KC Vette

Thread Starter

Drifting

Joined: Nov 1999

Posts: 1,764

Likes: 0

From: Lancaster OH

Cruise-In I Veteran

Cruise-In II Veteran

Draining Radiator

OK, got to ask a dumb question...how do you drain the radiator in a C5? Can't find one of those turn valves anywhere on the bottom of the radiator.....
Thanks....

May 22, 2005 | 03:06 PM

ROJ#79

Drifting

Joined: Jun 2004

Posts: 1,484

Likes: 20

From: FLORIDA

It's their! Rightside of Rad. Engine side. Not a standard petcock. It's black just like the Rad. I did mine last year.

May 22, 2005 | 03:09 PM

KC Vette

Thread Starter

Drifting

Joined: Nov 1999

Posts: 1,764

Likes: 0

From: Lancaster OH

Cruise-In I Veteran

Cruise-In II Veteran

Thanks, is there something about having to bleed the air out of the system as or after you refill? I have a Cool-Flex chrome upper hose I want to put on but, starting to change my mind.

May 22, 2005 | 04:44 PM

Cajundude

Race Director

Joined: Sep 2003

Posts: 13,550

Likes: 6

From: Now in God's Country, the Big Sky, Montana!

Cruise-In 7-8-9-10 Veteran

St. Jude Donor '06-'07-'08-'09-'10-'11-'12

Not to get off the subject, but how does that hose look in person? Thanks.

May 23, 2005 | 06:02 AM

KC Vette

Thread Starter

Drifting

Joined: Nov 1999

Posts: 1,764

Likes: 0

From: Lancaster OH

Cruise-In I Veteran

Cruise-In II Veteran

Here's their site
http://www.coolflex.com/cfm/welcome.cfm

May 23, 2005 | 08:25 AM

c3andc5

Pro

Joined: Apr 2005

Posts: 666

Likes: 5

From: Mt. Pleasant SC

Quote:

Originally Posted by KC Vette

Thanks, is there something about having to bleed the air out of the system as or after you refill? I have a Cool-Flex chrome upper hose I want to put on but, starting to change my mind.

Yes. After refilling with coolant you need to run the engine for a while after the thermostat opens with the surge tank cap off to bleed air.

May 23, 2005 | 10:30 AM

jimcork1

Drifting

Joined: Jan 2001

Posts: 1,347

Likes: 4

From: Slidell La

My drain plug was on the bottom of the right side of the radiator and was white with a phillips type slots in it. I used a phillips screwdriver and it only turned about 1/2 turn to open. I removed the cap. My engine was warm with the thermostat open. 11 qts. drained out of a 12 qt system. The coolant looked new (61K miles) and no trash in the coolant. I just closed the plug after draining,, and refilled. I measured 11 qts going back and the overflow tank is probably a little over full. I thought I would have to bleed it,, but It would not and has not needed any more coolant. That was about 2K miles ago. 99 Nassau Blue