how do i get it not so warm - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**hilljob26** · 05-27-2006, 11:21 PM

well,when it was cold,i was gripin cause it wasn't warm enough,now that its warm,im gripin cause its too warm,i dont want to change mt thermostat cause it runs great at 190-200 degrees,but im not sure on how to keep it from getting so warm in the cab,i tried disconnecting the blower motor,but that didnt help much,any you guys have any bright ideas that isnt going to overheat my truck,im running 2 12" electric cooling fans,with a 4-core,are shut off valves on the heater lines ok,if so,do i need 1 or 2,and if i only need 1,does it matter which line i put it on,and what are the best ones to get.all help is very much appreciated...mike

roj2323 · 05-27-2006, 11:32 PM

a shut off valve is indeed ok on the heater lines. the only thing is if it gets cold you have to pop the hood to get any heat.

**truckdude239** · 05-28-2006, 07:53 AM

i just looped my heater lines one from out to in on motor and one out and in on heater

**Stocker** · 05-28-2006, 09:51 AM

I must be missing something here. My heater controls (in the cold position) block the coolant from flowing through the heater core. Also, does your cab have a fresh-air vent in the driver's kick panel? That helps too...

Psycho71 · 05-28-2006, 12:46 PM

I did the loop thing on mine too. My controls are all jacked up right now, and I wanted NO hot water running thru the core. Worked great. But if everything is there, I think there is a factory valve to do this.

Jay

**Classic Heartbeat** · 05-28-2006, 01:01 PM

There is a factory valve that shuts off the water to the heater core, but it is for the A/C trucks only and needs the A/C controls to work it, because they are vacuum actuated. A manual valve is a good idea for a quick fix so all you have to do is open it up when you get too cold. However for the perminent fix you will need a heater seal kit, and that means completely dissasembling your heater system to install it. After all it isn't the hot water inside the heater core that is the problem, it is the old original seals that no longer seal the ducts off. In some cases the doors and flaps are not functioning. If everything is working as it should, air from the heater core will not even enter the cab. WES www.ClassicHeartbeat.com

robsm88 · 05-28-2006, 01:06 PM

1 more vote for looping the hoses together in the engine compartment. Only sure way to keep warm coolant out of the heater core.

Chevrolet4x4s · 05-28-2006, 03:12 PM

This should help when used in small qunaties

The valves would probablly be a better Idea since you wont get frostbite in July.

Shane

**hilljob26** · 05-28-2006, 06:03 PM

well,i put a shutoff valve in today,and it seems to do the trick,thanx for all the advice.mike

Longhorn Man · 05-28-2006, 06:51 PM

I'm installing a remote controlled shut off valve on mine. Put a choke cable in the glove box which controlls the valve in the eng compartment.

05-27-2006, 11:21 PM	#1
hilljob26 Registered User Join Date: Dec 2004 Location: Gypsum Kansas 67448 Posts: 1,681	how do i get it not so warm well,when it was cold,i was gripin cause it wasn't warm enough,now that its warm,im gripin cause its too warm,i dont want to change mt thermostat cause it runs great at 190-200 degrees,but im not sure on how to keep it from getting so warm in the cab,i tried disconnecting the blower motor,but that didnt help much,any you guys have any bright ideas that isnt going to overheat my truck,im running 2 12" electric cooling fans,with a 4-core,are shut off valves on the heater lines ok,if so,do i need 1 or 2,and if i only need 1,does it matter which line i put it on,and what are the best ones to get.all help is very much appreciated...mike __________________ 21 2500hd duramax 58 apache HILLJOB GRAPHIX--for all your graphic needs My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=542497 LS ENGINE SWAP INFORMATION THREAD http://67-72chevytrucks.com/vboard/s...d.php?t=377348 4l60 to an NP205 http://67-72chevytrucks.com/vboard/s...43#post3697343

05-27-2006, 11:32 PM	#2
roj2323 Senior Member Join Date: Mar 2004 Location: Somewhere Posts: 985	Re: how do i get it not so warm a shut off valve is indeed ok on the heater lines. the only thing is if it gets cold you have to pop the hood to get any heat.

05-28-2006, 07:53 AM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: how do i get it not so warm i just looped my heater lines one from out to in on motor and one out and in on heater __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-28-2006, 09:51 AM	#4
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,697	Re: how do i get it not so warm I must be missing something here. My heater controls (in the cold position) block the coolant from flowing through the heater core. Also, does your cab have a fresh-air vent in the driver's kick panel? That helps too... __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

05-28-2006, 12:46 PM	#5
Psycho71 Registered User Join Date: Jan 2006 Location: Kaufman, Tx Posts: 827	Re: how do i get it not so warm I did the loop thing on mine too. My controls are all jacked up right now, and I wanted NO hot water running thru the core. Worked great. But if everything is there, I think there is a factory valve to do this. Jay __________________ You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. If a hammer doesn't fix it, you have an electrical problem! Slot Cars, 1:24 Scale, 100MPH@100,000RPM, fastest things on wheels!

05-28-2006, 01:01 PM	#6
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,766	Re: how do i get it not so warm There is a factory valve that shuts off the water to the heater core, but it is for the A/C trucks only and needs the A/C controls to work it, because they are vacuum actuated. A manual valve is a good idea for a quick fix so all you have to do is open it up when you get too cold. However for the perminent fix you will need a heater seal kit, and that means completely dissasembling your heater system to install it. After all it isn't the hot water inside the heater core that is the problem, it is the old original seals that no longer seal the ducts off. In some cases the doors and flaps are not functioning. If everything is working as it should, air from the heater core will not even enter the cab. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

05-28-2006, 01:06 PM	#7
robsm88 Registered User Join Date: Apr 2006 Location: az Posts: 114	Re: how do i get it not so warm 1 more vote for looping the hoses together in the engine compartment. Only sure way to keep warm coolant out of the heater core.

05-28-2006, 03:12 PM	#8
Chevrolet4x4s Registered User Join Date: Nov 2005 Location: WV Posts: 227	Re: how do i get it not so warm This should help when used in small qunaties The valves would probablly be a better Idea since you wont get frostbite in July. Shane __________________ 1993 K1500 350 5 speed 1985 K10 Silverado Vortec 406 5 speed (in body shop) "I been drivin' this '85 pickup truck Them buddies of mine call it a bucket of rust She's a little beat up but she still runs like the wind Yeah, kinda like me I been banged and bruisedBeen around the block a time or two But I'm runnin' like new goin' places I never been No, I ain't broke I'm just broken in" 1963 Dodge Townwagon(its amazng what 30 years and zero miles will do to a vehicle ) Member#20327

05-28-2006, 06:03 PM	#9
hilljob26 Registered User Join Date: Dec 2004 Location: Gypsum Kansas 67448 Posts: 1,681	Re: how do i get it not so warm well,i put a shutoff valve in today,and it seems to do the trick,thanx for all the advice.mike __________________ 21 2500hd duramax 58 apache HILLJOB GRAPHIX--for all your graphic needs My build thread http://67-72chevytrucks.com/vboard/s...d.php?t=542497 LS ENGINE SWAP INFORMATION THREAD http://67-72chevytrucks.com/vboard/s...d.php?t=377348 4l60 to an NP205 http://67-72chevytrucks.com/vboard/s...43#post3697343

05-28-2006, 06:51 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: how do i get it not so warm I'm installing a remote controlled shut off valve on mine. Put a choke cable in the glove box which controlls the valve in the eng compartment.



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