Blocking heater hose Question?
Thread Starter
Pro
Joined: Jun 2005
Posts: 725
Likes: 1
From: FL.
Blocking heater hose Question?
I know this is posted alot but Im still confused::
I see alot of Guys plug the Manifild and waterpump and remove the heater Hoses altogeather. Im interested in doing that But My 69 has a Surge tank, and the return hose from the heater core goes into the surge tank before returning to the waterpump. Is it still possible to Plug both at the engine and not use the surge tank , or is it best To Just plug the Manifold and then leave the return hose connected??
Thanks for any tips, advice.
I see alot of Guys plug the Manifild and waterpump and remove the heater Hoses altogeather. Im interested in doing that But My 69 has a Surge tank, and the return hose from the heater core goes into the surge tank before returning to the waterpump. Is it still possible to Plug both at the engine and not use the surge tank , or is it best To Just plug the Manifold and then leave the return hose connected??
Thanks for any tips, advice.
Racer
Joined: Feb 2007
Posts: 315
Likes: 9
From: Cocoa Beach Florida
If the water temperature is higher than you like, the heater core can also be used for cooling the water. Therefore, I suggest to leave the hoses in the system as designed!
The "surge" tank is required for the cooling system (pressure increase/decrease). Make sure it is always part of the cooling system!!!
The "surge" tank is required for the cooling system (pressure increase/decrease). Make sure it is always part of the cooling system!!!
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Removal depends on weather or not your radiator has a (pressure) radiator cap and expansion tanks built in.
So many cars have been modded over the years you can't tell by vehicle description alone.
Another option is to remove at the heater core and use a straight reduction connector as shown here 3/4 x5/8 to join the heater hoses together.
http://www.eldonjames.com/html/redcoup.html
So many cars have been modded over the years you can't tell by vehicle description alone.
Another option is to remove at the heater core and use a straight reduction connector as shown here 3/4 x5/8 to join the heater hoses together.
http://www.eldonjames.com/html/redcoup.html
Last edited by noonie; Mar 22, 2007 at 10:47 AM.
Melting Slicks
Joined: Dec 2005
Posts: 2,441
Likes: 0
I never did like the surge tank system, what it amounts to is a place where a big slug of air can accumulate. When the engine is running all the air collects in the tank, when the engine is shut off, some coolant collects in the tank lowering the over all level in the system. I converted my system to the recovery style by fitting a radiator hose filler to the upper radiator hose and using a late model C3 recovery tank in place of the surge tank. This puts the fill point higher than anyplace else in the system eliminating all the air, when you do that you have less chance of any air pockets being trapped in the engine.
And if you go this route you can fit a ball valve in a heater hose to block coolant to the heater core during the summer months.
http://store.summitracing.com/largei...=csi-973_w.jpg
And if you go this route you can fit a ball valve in a heater hose to block coolant to the heater core during the summer months.
http://store.summitracing.com/largei...=csi-973_w.jpg
Last edited by shafrs3; Mar 22, 2007 at 08:24 PM.
Melting Slicks
Joined: May 2003
Posts: 2,387
Likes: 2
From: Meriden CT
I never did like the surge tank system, what it amounts to is a place where a big slug of air can accumulate. When the engine is running all the air collects in the tank, when the engine is shut off, some coolant collects in the tank lowering the over all level in the system. I converted my system to the recovery style by fitting a radiator hose filler to the upper radiator hose and using a late model C3 recovery tank in place of the surge tank. This puts the fill point higher than anyplace else in the system eliminating all the air, when you do that you have less chance of any air pockets being trapped in the engine.
And if you go this route you can fit a ball valve in a heater hose to block coolant to the heater core during the summer months.
http://store.summitracing.com/partde...5&autoview=sku
And if you go this route you can fit a ball valve in a heater hose to block coolant to the heater core during the summer months.
http://store.summitracing.com/partde...5&autoview=sku
Do you have pics of your setup? I never liked the fact that the fill cap is on my expansion tank lower than the upper radiator hose...
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
You must have an expansion tank somehere in the system. It's just the nature of the beast.
Do you have pics of your setup? I never liked the fact that the fill cap is on my expansion tank lower than the upper radiator hose...
If you don't do it, their cars WILL overheat.
Melting Slicks
Joined: Dec 2005
Posts: 2,441
Likes: 0
Sure, nothing special, easy and cheap to do. No "expansion" tank like we know it but a recovery tank making it a closed and fully filled system like the modern cars.
Last edited by shafrs3; Mar 22, 2007 at 07:50 PM.
Thread Starter
Pro
Joined: Jun 2005
Posts: 725
Likes: 1
From: FL.
I dont want to use the heater anymore, The core is old and could fail any time and the system Never was effective Heating the cab of my Vert anyway
..So,I just got finished putting a Brass plug in the Manifold, and Tossing the Hose to the heater core away. Then I cut the return hose between the heater core and the Surge tank and Plugged the hose where I cant see it. Now I only have the hose from the surge tank to the water pump funtioning, Or I hope it functions Looks to me like I bypassed the heater correctly, does it sound right?. .
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Sep 2005
Posts: 4,226
Likes: 643
From: Orange County Ca
I just recently did my simular system. I plugged the manifold and water pump. then just used a short length of hose to tie the 2 serge tank connections together. My radiator is still hooked to the tank with a small hose. Seems to work fine. I could never understand why the heater hoses were routed through the serge tank anyway????????
Origionally, I just tied the two hoses together before the heater, and the water circulated through the tank, which is what it would do when the heater valve is open. Now, with no secondary loop, all the water is going through the radiator. Anyway, it droped the water temp a little.
Origionally, I just tied the two hoses together before the heater, and the water circulated through the tank, which is what it would do when the heater valve is open. Now, with no secondary loop, all the water is going through the radiator. Anyway, it droped the water temp a little.
Le Mans Master
Joined: Oct 2005
Posts: 9,429
Likes: 44
From: Macon, GA
one hose from the surge tank to the water pump and one hose from the tank to the fitting on the top of the water pump.