Go Back   Third Generation F-Body Message Boards > Tech Boards > Cooling
Sign in using an external account
Register Forgot Password?

Cooling Discuss all of the aspects of cooling that you can think of! Radiators, transmissions, electric fans, etc.

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools Search this Thread
Old 09-11-2009, 05:16 PM   #1
Junior Member
 
Join Date: Jul 2009
Location: Abingdon, Virginia
Posts: 11
Car: 85' Z28
Engine: bone stock 350, rochester quadrajet
Transmission: Stock 4sp. automatic
Axle/Gears: stock gears

Classifieds Rating: (0)
Heater core routing of hoses...

does anyone happen to have a pic of the routing for the heater core hoses??? mines been dissconnected and one of the hoses is plugged w/ no evedince of where the other line is.....i see the two connectors on the core...i have an 85, z28..
tripnotic19 is offline vBGarage Page   Reply With Quote
Old 10-22-2009, 09:28 PM   #2
Junior Member
 
Join Date: Sep 2009
Posts: 17
Car: 1986 Z28 Camaro
Engine: 305 V8

Classifieds Rating: (0)
Re: Heater core routing of hoses...

will someone with some input please respond!!! ive got the some problem only in an "86 z28, someone cut all the hose and rerouted a few... ive no idea of where they should be! please help!!!
z28kubacak is offline vBGarage Page   Reply With Quote
Old 10-22-2009, 11:44 PM   #3
Supreme Member
 
Join Date: Dec 2005
Location: Macon, GA
Posts: 3,335
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70

Classifieds Rating: (3)
Send a message via AIM to InfernalVortex
Re: Heater core routing of hoses...

It's not really hard. If you want to use the stock style hoses grab some from a junkyard with the diverter valve.

Otherwise you can just run a hose from any port on the motor (usually on the intake somewhere) to the heater core, and then the other hose to a return fitting on the radiator.

Check the radiator for a fitting and look for a plug on the intake.

And my heater core was bypassed for this pic, but you can still get an idea of what the stock routing is like. Notice the fittings in the intake and the hose running down to the radiator. You dont really need a diverter valve though.



And chances are they cut and rerouted the hoses because your heater core is bad. Just an FYI. Be prepared to replace the heater core.
__________________

Last edited by InfernalVortex; 10-22-2009 at 11:51 PM.
InfernalVortex is offline vBGarage Page   Reply With Quote
Old 10-24-2009, 12:07 AM   #4
Senior Member
 
blacksunshine'91's Avatar
 
Join Date: Sep 2000
Location: NAS Lemoore, CA
Posts: 751
Car: 1991 GTA
Engine: 350 w/Vortec heads
Transmission: Pro-built 700R4
Axle/Gears: 3.27

Classifieds Rating: (3)
Re: Heater core routing of hoses...

I have the heater hose diagram. If somebody wants to host it, I'll send it to them. I get about two PMs a week asking for it.
__________________
'91 GTA w/C&C T-tops, ENG: TPI 350 w/GMPP vortec heads, 52mm TB, AS&M runners, Edelbrock exhaust & ceramic coated headers. TRANS: Pro-Built 700R4. SUSPENSION: Jamex springs, Hotchkis LCAs & panhard rod, Global West SFCs & Del-a-lum bushings, Baer front brakes & bumpsteer kit, BMR 3-point STB, Spohn strut towers & torque arm, TDS wonderbar, KYB AGX shocks & struts, ES poly bushings. RIMS: Edelbrock 409's.
blacksunshine'91 is offline vBGarage Page   Reply With Quote
Old 01-04-2010, 12:46 AM   #5
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

Quote:
Originally Posted by blacksunshine'91 View Post
I have the heater hose diagram. If somebody wants to host it, I'll send it to them. I get about two PMs a week asking for it.
Please email me at KenNguyen2@gmail.com

I'll host the pix for you.
kennn is offline vBGarage Page   Reply With Quote
Old 01-04-2010, 03:41 PM   #6
Senior Member
 
Drew's Avatar
 
Join Date: Jul 1999
Posts: 12,318

Classifieds Rating: (14)
Re: Heater core routing of hoses...

Most of the time it's standard Chevy water hose routing... One hose from the outlet of the water pump to the core, the other to the intake manifold. The cars with the nipple on the passengers side of the radiator, use that nipple instead of the water pump nipple.

It gets a bit more confusing with the diverter valve... Generally speaking, the cars without A/C don't have a diverter valve. On those cars the line from the intake goes directly to the heater core.
__________________
Drew
83 Camaro 5.0L *1995-98* RIP
84 Camaro 2.8L *2005-06* RIP
86 Trans Am WS6 5.7L Sold!
86 Mustang 2.3L Turbo
87 Iroc 5.7L
91 Formula 5.7L
91 Camaro RS convertible 5.0L
91 Firebird 3.1L *1999-06* Sold!
Drew is offline vBGarage Page   Reply With Quote
Old 01-04-2010, 09:57 PM   #7
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

Thank you for posting that picture.

I have a small problem though.

I am running a GM Goodwrench 350cid crate engine with Edelbrock intake manifold and Jones Racing Products water pump.

The water pump has 2 pre-tapped holes which I think are for suction since they are on the same plane as the lower radiator hose.

The Edelbrock intake has 2 holes, one on either side of the thermostat housing.

The tech guy at Jegs told me:

Quote:
The intake of the heater core should be plumbed from the water pump and the return will go back to the intake manifold
This is fine, but I don't think my water pump has a port for coolant into the heater core. It's an aftermarket pump. I'm trying to get a response from the manufacturer but they did not respond yet.

I'm running a full Vintage Air system and they recommend:

Hot coolant from intake manifold into heater core
Cold coolant from heater core out to suction port connection on water pump.

These two recommendations are opposite of each other and I have no idea what to do
kennn is offline vBGarage Page   Reply With Quote
Old 01-04-2010, 10:20 PM   #8
Senior Member
 
Drew's Avatar
 
Join Date: Jul 1999
Posts: 12,318

Classifieds Rating: (14)
Re: Heater core routing of hoses...

Knowing what the ports on your aftermarket water pump are for would help. But really you just need to run a hose from the water passage in the intake to the heater core, and then a return from the core to the radiator or water pump.
Drew is offline vBGarage Page   Reply With Quote
Old 01-04-2010, 10:32 PM   #9
Supreme Member
 
one92rs's Avatar
 
Join Date: Jan 2009
Location: league city
Posts: 2,359
Car: 92 camaro rs-project car
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: 3.23

Classifieds Rating: (2)
Re: Heater core routing of hoses...

here is mine with a carb.

__________________

ME AND MY ANAL SHOW PONY!
one92rs is online now vBGarage Page   Reply With Quote
Old 01-05-2010, 12:03 AM   #10
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

Thank you for the quick responses.

Honestly, I would really like the way you posted in the pix. I want the intake to feed the heater core hot coolant, and warm coolant can go out for the radiator to finish the job of cooling the coolant down.

I think this is safe because there is no possibility for coolant to loop around the head and cause overheating.

My mechanic did my setup a little strange.

The top port of the water pump goes straight to the heater core outlet for warm coolant.

The intake is tee'd together with a tap on top of the water neck, and this together goes to the heater core inlet for hot coolant.

I have no idea why he wanted to tee the intake and the top of the water neck together.

I think I will plug up everything and run it like the pix. Thanks.
kennn is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 04:48 PM   #11
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

More info to add to the pot:

Quote:
Vintage Air:
We have found in most cases that the radiator pressure is too great and will
not allow the coolant to circulate properly.

With the heater control valve
closed, coolant is forced to flow through the radiator - when the valve is
open, normally there is more resistance @ the heater hose as it is smaller
than the radiator hose so it shouldn't cause overheating.
Vintage Air recommends returning coolant to the water pump rather than the radiator. The first part of his comments was directed towards you guys who recommended that I return coolant to the radiator. The second part of his comments was directed towards the Vintage Air recommended way to return coolant to the water pump.


So I don't know what to do now :-(
kennn is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 05:29 PM   #12
Senior Member
 
Drew's Avatar
 
Join Date: Jul 1999
Posts: 12,318

Classifieds Rating: (14)
Re: Heater core routing of hoses...

GM did away with the return to the water pump and added the return on the radiator. Whether the change was due to space limitations or an improved design, it works. If it works good enough for the company liable for all the customer complaints, and warranty repairs, it must work pretty well.
__________________
Drew
83 Camaro 5.0L *1995-98* RIP
84 Camaro 2.8L *2005-06* RIP
86 Trans Am WS6 5.7L Sold!
86 Mustang 2.3L Turbo
87 Iroc 5.7L
91 Formula 5.7L
91 Camaro RS convertible 5.0L
91 Firebird 3.1L *1999-06* Sold!
Drew is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 05:56 PM   #13
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

I just got off the phone with an Edelbrock tech and he confirmed Vintage Air's routing.

I hear what you're saying in mind. Since it's cheaper for me to do the Vintage Air way I'll keep it that way for now. If it gets too hot I'll try to go your way.

My heart wants the radiator but my brain wants the water pump

Thanks for the help.
kennn is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 06:33 PM   #14
Supreme Member
 
one92rs's Avatar
 
Join Date: Jan 2009
Location: league city
Posts: 2,359
Car: 92 camaro rs-project car
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: 3.23

Classifieds Rating: (2)
Re: Heater core routing of hoses...

wow gm designs and produces billions of cars. and you are listening to a couple a performance companies. although they are reputable companies i havent see any cars designed by them.
__________________

ME AND MY ANAL SHOW PONY!
one92rs is online now vBGarage Page   Reply With Quote
Old 01-06-2010, 06:46 PM   #15
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

Quote:
Originally Posted by one92rs View Post
wow gm designs and produces billions of cars. and you are listening to a couple a performance companies. although they are reputable companies i havent see any cars designed by them.
I'm a classically trained engineer so you have to give me more than the manufacturer's ethos.

My drivetrain is pre-85 small block into a kit car. If it were a Camaro drivetrain then I would stick with the stock setup.

The problem for me is there is no "stock" template, although I've been using a lot of third gen stuff to build my kit car. A pre-85 C pickup is probably a better template.

I'm going to call Vintage Air one more time tomorrow and make a final decision.
kennn is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 06:46 PM   #16
Senior Member
 
Drew's Avatar
 
Join Date: Jul 1999
Posts: 12,318

Classifieds Rating: (14)
Re: Heater core routing of hoses...

If you don't have the port in the radiator, I'd use the water pump... If you've got the radiator port, I'd use it. Either way works. I can tell you for a fact, if you run the water line to the radiator, and the other to the water pump, the heater never gets warm. LOL
Drew is offline vBGarage Page   Reply With Quote
Old 01-06-2010, 06:50 PM   #17
Member
 
Join Date: Dec 2007
Posts: 121
Car: 1990 Nissan 240SX
Engine: GMPP Gen0 350 small block
Transmission: WC T5
Axle/Gears: Nissan R200 3.133, Tomei 2-way

Classifieds Rating: (0)
Re: Heater core routing of hoses...

Quote:
Originally Posted by Drew View Post
If you don't have the port in the radiator, I'd use the water pump... If you've got the radiator port, I'd use it. Either way works.
I don't have a port on the radiator but I have one on the water neck between the thermostat and the radiator. But if it's absolutely the best way, I will install a port on the upper tank of the radiator. It's not a problem.

Quote:
Originally Posted by Drew View Post
I can tell you for a fact, if you run the water line to the radiator, and the other to the water pump, the heater never gets warm. LOL
Makes sense how the coolant is already cold from running through the radiator.

Thanks for your help.
kennn is offline vBGarage Page   Reply With Quote
Old 01-07-2010, 03:18 AM   #18
Junior Member
 
Join Date: Jan 2010
Posts: 67
Car: 1984 Camaro Berlinetta
Engine: currently 2.8l v6
Transmission: not sure.. its a 5spd
Axle/Gears: don't know but it will be replaced

Classifieds Rating: (0)
Re: Heater core routing of hoses...

usally its pretty easy it will be a short hose running in and out the angine i think or capped off either way they are differnt sizes aswell the tubes on the heating core so its simple to see which on goes where... well its been that way for my dodge dakota and now camaro
84-camaro-zoom is offline vBGarage Page   Reply With Quote
Old 01-07-2010, 03:18 AM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > Cooling

Tags
1987, 1988, 1989, 82, 84, body, camaro, cooling, core, heater, hose, radiator, route, routing, system, upper
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


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


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.5.2
All content copyright © 1997 - 2012 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details