LS1TECH - Camaro and Firebird Forum Discussion
SBC-BBC-LT1-LT4 PERFORMANCE
LT1-LT4 Modifications
How to completely drain the cooling system

LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How to completely drain the cooling system

Reply Subscribe

Search this Thread

Old

Feb 6, 2009 | 01:19 PM

#1

Thread Starter

TECH Regular

Joined: Feb 2005

Posts: 400

Likes: 2

Default

How to completely drain the cooling system

I backflushed the cooling system and it's now full of nothing but water. Drained the radiator but that didn't remove all the water from the engine block. It only took less than a gallon of antifreeze to refill the whole thing. How do I completely remove the water from the engine block too so I can refill the system with the proper water/coolant mixture?

Old

Feb 6, 2009 | 01:21 PM

#2

TECH Senior Member

iTrader: (36)

Joined: Jan 2008

Posts: 8,184

Likes: 28

From: Orange County, CA

Default

Quote:

Originally Posted by Jeep_junkie

I backflushed the cooling system and it's now full of nothing but water. Drained the radiator but that didn't remove all the water from the engine block. It only took less than a gallon of antifreeze to refill the whole thing. How do I completely remove the water from the engine block too so I can refill the system with the proper water/coolant mixture?

The block has two drain plugs, one on each side of the block. On the drivers side it's just a regular screw in plug. On the passenger side, the knock sensor serves as the plug. Remove both and empty the radiator and you should have completely drained the system.

Old

Feb 6, 2009 | 01:22 PM

#3

Launching!

iTrader: (4)

Joined: Nov 2004

Posts: 231

Likes: 0

From: omaha,ne

Default

Firehose ... F T W

^^^^ What he said

Old

Feb 6, 2009 | 01:54 PM

#4

TECH Enthusiast

iTrader: (14)

Joined: Oct 2007

Posts: 551

Likes: 0

From: Fort Worth, TX

Default

http://shbox.com/1/4th_gen_tech2.html#radflush

Old

Feb 6, 2009 | 01:58 PM

#5

TECH Senior Member

iTrader: (36)

Joined: Jan 2008

Posts: 8,184

Likes: 28

From: Orange County, CA

Default

Quote:

Originally Posted by $O$OE

http://shbox.com/1/4th_gen_tech2.html#radflush

Ah yes, LOVE that website!

Old

Feb 6, 2009 | 03:19 PM

#6

TECH Resident

Joined: Oct 2008

Posts: 966

Likes: 0

From: Redondo Beach, CA

Default

yep, pretty simple.

Old

Feb 7, 2009 | 09:04 PM

#7

Thread Starter

TECH Regular

Joined: Feb 2005

Posts: 400

Likes: 2

Default

Thanks!

Reply Subscribe

backflushed, block, completely, coolant, cooling, drain, draining, engine, flush, ls1, ls1tech, lt1, manually, plugs, radiator, remove, system, water

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 07:01 PM.