Where should this coolant line be routed
Thread Starter
Advanced
Joined: Mar 2005
Posts: 63
Likes: 0
Where should this coolant line be routed
I have a 91 L98. I'm bypassing the throttle body.
Where did this coolant line from the back passenger side of the intake go to originally? (see photo). This steel line had been cut prior to me to a length of about 2" and a hose was attached that ran from the intake fitting to a brass tee that was installed in the coolant hose coming from the output of the throttle body.
Since I'm bypassing the throttle body now I guess, I will just tie it in somewhere in the hose that runs from the front of the intake to the heater core.
What I'd really like to do is just eliminate it--screw a brass plug into the threaded hole. Would this cause a problem?
I just don't remember noticing what the stock routing was on any original cars. I do know a lot of coolant runs through this steel line--but... where did it tie in originally?
Thanks
Where did this coolant line from the back passenger side of the intake go to originally? (see photo). This steel line had been cut prior to me to a length of about 2" and a hose was attached that ran from the intake fitting to a brass tee that was installed in the coolant hose coming from the output of the throttle body.
Since I'm bypassing the throttle body now I guess, I will just tie it in somewhere in the hose that runs from the front of the intake to the heater core.
What I'd really like to do is just eliminate it--screw a brass plug into the threaded hole. Would this cause a problem?
I just don't remember noticing what the stock routing was on any original cars. I do know a lot of coolant runs through this steel line--but... where did it tie in originally?
Thanks
Last edited by jonrbrt; Sep 23, 2008 at 03:02 PM. Reason: more detail
Former Vendor
Joined: Nov 2006
Posts: 2,482
Likes: 3
From: Carmichael ca
There is a small metal pipe that goes into a larger metal pipe that goes to the top heater hose. By-passing the throttle body should have no affect on this. I'm not sure, but I believe its there to bleed air from the coolent in the rear of the engine.
Last edited by Paul Ruggeri; Sep 23, 2008 at 06:40 PM.
Thread Starter
Advanced
Joined: Mar 2005
Posts: 63
Likes: 0
Thanks, but it... bleeds more than air, it pumps a steady stream of coolant the size of the tubing while the car is running with the line open.
It affects my application because as I said above, it had previously been routed to the hose coming out of the throttle body and going to the heater core. When you bypass the throttle body you end up with a hose from the front of the intake just below the throttle body to the heater core eliminating where it was previously plumbed in.
It affects my application because as I said above, it had previously been routed to the hose coming out of the throttle body and going to the heater core. When you bypass the throttle body you end up with a hose from the front of the intake just below the throttle body to the heater core eliminating where it was previously plumbed in.
Thread Starter
Advanced
Joined: Mar 2005
Posts: 63
Likes: 0
86Pacer, where did the hard metal line you're talking about empty into?
Iroc57 -- It's in top of the manifold. My arrow pointer in photo is just below the fitting. If you look real hard you can see the metal tubing (appx 5/16" diameter) leaning off to the left.
Thanks for relpies.
Iroc57 -- It's in top of the manifold. My arrow pointer in photo is just below the fitting. If you look real hard you can see the metal tubing (appx 5/16" diameter) leaning off to the left.
Thanks for relpies.
Advanced
Joined: Jun 2008
Posts: 55
Likes: 0
From: Kinnelon NJ
Just went outside and looked at the '90...
from the intake manifold it goes to a "Tee" one end going up too the lower tap on the top coolant tank... the other going down to the lower coolant over flow tank....
Not fully sure of how it's supposed to work but that's how's it's piped on the '90...
Slick looking motor !!!!
from the intake manifold it goes to a "Tee" one end going up too the lower tap on the top coolant tank... the other going down to the lower coolant over flow tank....
Not fully sure of how it's supposed to work but that's how's it's piped on the '90...
Slick looking motor !!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
86Pacer, where did the hard metal line you're talking about empty into?
Iroc57 -- It's in top of the manifold. My arrow pointer in photo is just below the fitting. If you look real hard you can see the metal tubing (appx 5/16" diameter) leaning off to the left.
Thanks for relpies.
Iroc57 -- It's in top of the manifold. My arrow pointer in photo is just below the fitting. If you look real hard you can see the metal tubing (appx 5/16" diameter) leaning off to the left.
Thanks for relpies.
Plug it, you won't affect flow at all
Drifting
Joined: Dec 2005
Posts: 1,313
Likes: 2
From: High Ridge Missouri
Looking at your pics I assume this isn't in a C4. That being the case most likely your radiator is higher than the bleed tube which means it should not cause you any problems just installing a brass plug like you're wanting to.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
When you bypass the throttle body you end up with a hose from the front of the intake just below the throttle body to the heater core eliminating where it was previously plumbed in.
