LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Mystery Radiator hose?? Reinstalling motor!

Thread Tools
 
Search this Thread
 
Old Dec 22, 2003 | 08:22 PM
  #1  
94redform's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 82
From: Wichita, Ks
Mystery Radiator hose?? Reinstalling motor!

On the passenger side of the radiator just under the cap there are two outlets one is for the overflow "the one that connects right into the cap" and the other one is about the same size as this outlet "except just below the overflow", water enters or exits just below the radiator cap. This portion should be pressurized and I can't seem to find the hose or where it goes to

I'm reinstalling my new motor and any help would be appreciated.
Old Dec 22, 2003 | 08:26 PM
  #2  
Buttercup's Avatar
Registered User
 
Joined: Jun 1999
Posts: 939
From: Lowcountry
That's the line for the coolant crossover tube that bleeds the heads, it's the pipe that runs down the passenger side between intake manifold and head. If you haven't done the TB bypass it would come from there, but I'd go ahead and just run the line from the crossover to radiator to do the bypass now
Old Dec 22, 2003 | 08:49 PM
  #3  
94redform's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 82
From: Wichita, Ks
Exactly how important is this coolant crossover tube that bleeds the heads???

The heads on the motor have studs in the holes and the crossover tube is on the old motor sitting on my garage floor, and it just so happens that my buddy cut them in half where it connects one head to the other behind the motor.
Old Dec 22, 2003 | 10:56 PM
  #4  
Buttercup's Avatar
Registered User
 
Joined: Jun 1999
Posts: 939
From: Lowcountry
On reverse cooled heads its very important. Reverse cooling has a habit of trapping bubbles in the top end and the coolant crossover is one of the solutions. It's not uncommon to cut that tube, as it can be a PITA to remove it on the car. You can join them back together with a piece of hose. If the crossover is not installed you may find it difficult if not impossible to keep the cooling system bled and you may develop hot spots=detonation.
Old Dec 23, 2003 | 11:44 AM
  #5  
nosfed's Avatar
Registered User
 
Joined: Sep 2000
Posts: 550
From: KC; Where grandma drives in the left lane
Yeah, I'm the goofball that cut the line. I noticed the new heads had pipe plugs in em, so I jus left em in there. Here's to hoping you can get back in there.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Magenta_Hearts
LT1 Based Engine Tech
15
Mar 29, 2017 08:54 PM
94Z28LS1toLT1
LT1 Based Engine Tech
7
Jan 15, 2015 07:18 PM
Jazsun
Cars For Sale
0
Dec 29, 2014 12:14 PM
ro2207
LT1 Based Engine Tech
14
Dec 4, 2014 06:18 PM




All times are GMT -5. The time now is 12:07 AM.