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Topic: Heat coming throught the vents

in Forum: C3 Cooling and Heating Systems


Heat coming throught the vents

Posted: 7/18/06 4:39pm Message 21 of 34
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Scott, LA - USA
Joined: 2/26/2004
Posts: 303
Vette(s): 77 L82 coupe

Yes please do email em to me glenn.fleming@kadena.af.mil

Thanx much

Glenn









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Heat coming throught the vents

Posted: 7/18/06 6:14pm Message 22 of 34
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Joined: 3/27/2006
Posts: 380
Alan--if it's not too much trouble, would you email me the same photos?
Your setup sounds like a really effective solution, and I'd like to learn
more about it. In fact, if you can share any additional info--like wiring
runs, location of relays etc., it would be much appreciated.

My email is: tnr777@corvettemail.com

Thanks!


Heat coming throught the vents

Posted: 7/19/06 6:17am Message 23 of 34
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Newark, DE - USA
Joined: 7/26/2004
Posts: 468
Vette(s): 1968 Conv, 454HO,500HP-600TQ, TKO-600,3:70 HD rear,hotrod air, custom paint & suspension,1973 Ruby Red,T-top, 383 Stroker, TK)-500,frame off restro, 1967 Dodge Coronet, 340 stroker to 406, Dana 60

Just sent the pic's

Alan




                                               

Heat coming throught the vents

Posted: 7/19/06 7:30am Message 24 of 34
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Suffern, NY - USA
Joined: 3/16/2005
Posts: 227
Vette(s): 1976 restored,new interior,custom paint(purple),body kit,rebuilt engine,trans,upgraded sound system

Jimg,does that shutoff valve you purchased from napa,replace the heater control valve,or is used leaving the heater valve in place, I

would like to try it.




Heat coming throught the vents

Posted: 7/19/06 10:13am Message 25 of 34
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sonoma, CA - USA
Joined: 8/9/2002
Posts: 784
Vette(s): 72 LT-1 AC coupe,69 l-36 coupe
If you guys who are useing ball check valves to isolate the heater core one is only doing half the job, you have to use two check valves, one at the intake and one at the water pump,I used short 1/2" nipple's to atach to the motor and short 1/2" heater hose nipple's to attach to the hoses instead of the copper tubing set up, less fittings and it cleared the AC brakets and the hoses stayed in the stock location, alot cleaner setup, check around for different check valves, some have the long handle like on the posted link and some have a knob, like a small TV knob, the knob looks cleaner and doesn't stick way out, also check to make sure the plenum is sealed properly and that the plenum doors are working properly, both inside and outside, a bad vacume dashpot will cause them not to open or close the way they are suppose to.


Heat coming throught the vents

Posted: 7/23/06 12:39pm Message 26 of 34
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Los Angeles, CA - USA
Joined: 7/22/2006
Posts: 5
Vette(s): 1968

Hi Everyone, this is my first post . . .  I'm borrowing a friend's 68 427/435 roadster, and the interior is so hot, I can't believe he ever drove it . . . It's like a blast furnace!  Obviously, I read this thread with great interest . . .

First question:  Rather than on-off valves spliced into the heater hoses, what about just bypassing the heater core altogether by routing the intake hose directly to the water pump?  I live in So. Cal., so I doubt I would ever turn the heater on . . .

Thoughts?

Alan in L.A.




Heat coming throught the vents

Posted: 7/23/06 2:05pm Message 27 of 34
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DeBerry, TX - USA
Joined: 2/27/2002
Posts: 1006
Vette(s): 1971 383 Stroker- mille miglia red...5 speed
Does the heat blow through the a/c-heating vents only when you're moving? If so, you're probably getting heat straight out of the engine compartment. That was the problem I had, tried every fix, even bypassing the heater with no results. Finally I had an aftermarket a/c unit put in. They found a split in the box mounted to the firewall on the passenger side in the engine compartment. (evaporator box?) That cured that heat problem and  got a working a/c to boot, but I still need to put heat insulation under the carpet to get rid of the radiated heat from the floor and console. hopefully you don't have all that problem. You can certainly bypass the heater, but I would blow out the heater core to remove any coolant left in it.



   I know the voices aren't real, but they have some pretty cool ideas...

Heat coming throught the vents

Posted: 8/8/06 8:27am Message 28 of 34
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Joined: 3/19/2005
Posts: 385

I had a slight overheating problem in my 77. I added to my radiator a product named "water Wetter", some one in corvette magazine recommended it. I bought it at Autozone, about $8.00. I took my vette out on the interstate, temp was 94 degrees outside, (Florida) and ran the car for about 35 miles at 80 mph with a/c running. Cars temp went just barely over 200 degrees. I,m satisfied, although I don't know what it might do on really long drives. Good luck whatever you do, Gene

Has anyone else tried this product? Gene

gs77vet38937.3552199074


Heat coming throught the vents

Posted: 8/8/06 11:16am Message 29 of 34
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jersey city, NJ - USA
Joined: 11/30/2003
Posts: 372
Vette(s): 1979 corvette metallic silver/red leather interior
[QUOTE=windrider1200]

[QUOTE=stevep316]heres the link i tried to post-

http://temp.corvetteforum.net/c3/joeveto/Hot_Water_Shut-Off. shtml


see if that helps-
ive installed one on mine, and it has reduced the inside temp big time!
[/QUOTE]

I also installed a shutoff valve on the return line to the water pump.  Without it, heat travels up the hose and into the heater core, even without any flow.  Just another trick i learned on these forums. 

 

[/QUOTE]

 

thats good to know! it does seem to work as it is, think ill grab a pair of those valves from napa and do it that way




Heat coming throught the vents

Posted: 8/14/06 4:34pm Message 30 of 34
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Nales, FL - USA
Joined: 6/5/2005
Posts: 57
Vette(s): 1978 Siver Anniversary Editon, L48, almost all original

JimG-

Do you, or anyone here, have the exact part name for that NAPA 660-1414 cited?  I'm trying to see it online on napaonline.com and it keeps coming back 'no matches'.  (disregard, just found it here: http://www.napaonline.com/MasterPages/NOLMaster.aspx?PageId= 470&LineCode=BK&PartNumber=6601414&Description=H eater+Valve)

Being in about the farthest southwest in FL you can get, 95 degree days are common.  Just as you guys have described, "nuclear plant style" heat is becoming too regular for a guy that tries to drive my toy to work each day!

Anips:  Any pics of that install?

Lockdown38943.6931597222


ride it...errr... drive it like you stole it!

in Forum: C3 Cooling and Heating Systems


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