Home page
  Active Threads   Forum Search   Top Posters List   Private Messenger   Vette Registry Email System   Corvette Quiz
  Members Vettes & Pictures   Member Stories   Member Stats   Real Time Member Map   Member Search   Lifetime Member List   Member Calendar Entry Form   Who's Online
  Vette Registry Data   Corvette Statistics   Corvette Tips & Tricks   Corvette How-Tos   Corvette Club Directory   Corvette Events Calendar   Corvette Mechanic Directory   Corvette VIN Decoder   Save the Wave   Corvette Emblem History   C3 Corvette Birthday Calculator   C3 Corvette Build Dates & Trim Tag Codes   1953-1982 Corvette Parts & Illustration Catalog
  Corvette Parts Auctions on eBay   Corvette Books   Vette Registry In-Stock Apparel & Accessories   Vette Registry Member Name Badges   Vette Registry Custom Apparel & Accessories @ Zazzle   Vette Registry Window Stickers   Vette Registry Member Calendars   Shop Amazon.com
  Our History   Advertise with Us   Sponsor List   Link to Us   Compare Levels   Member Agreement   Terms of Service   Privacy Policy   Contact Us
☰

Reduce interior heat w/ a hot water shut-off valve

Forum: C3 Electrical, Body and Interior

21 Messages
Page 1 of 3
Share:
Sponsored Content
Don't Miss Out!
Join us for our 2026 Vette Registry Member Gathering! Click for full details.

Already a Member?

Welcome back! Access your account.

Sign In

Not yet a Member?

Join our community! Registration is free.

Join Free

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/9/04 10:32pmMessage 1 of 21
C
C3RVETTE
Former Member
Send PM
Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
http://temp.corvetteforum.net/c3/joeveto/Hot_Water_Shut-Off.shtml The last couple pics are missing,but a fairly good how-to guide... |smokin|

Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

Be the first to like this post
Sign In to Like this post
SPONSOR AD:: (Our Sponsors help support Vette Registry)

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 5:58amMessage 2 of 21
B
Big Fish
Former Member
Send PM
Joined: 12/16/2003
Posts: 630
For what it's worth, you can buy a ball valve at Home Depo or Lowe's that already has the hose barbs as part of the casting. Cut the hose, install the valve, done for under 10 bucks. I personally prefer the hose barbs over the smooth stubs of copper tubing, less chance for the hose to blow off, and you really don't need the bleeder.
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 10:17amMessage 3 of 21
C
C3RVETTE
Former Member
Send PM
Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
Sounds good...Lowes,huh? Got one fairly close.Havent done this yet,but I need to.Which hose? Upper or lower? Probly upper... |idea|

Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 10:25amMessage 4 of 21
B
Big Fish
Former Member
Send PM
Joined: 12/16/2003
Posts: 630
 C3RVETTE said: Sounds good...Lowes,huh? Got one fairly close.Havent done this yet,but I need to.Which hose? Upper or lower? Probly upper... |idea| 


Can't remember upper or lower, but you want to install in the 5/8" line. The other line is 3/4". |thumb|
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 6:20pmMessage 5 of 21
Profile Pic
FLA VETTE
Free Member
Send PM
ORLANDO, FL - USA
Joined: 12/11/2002
Posts: 459
Vette(s): 1980 L82 Dark Metallic Green Coupe, Gymkhana Suspension, AM/FM/CB, GM ZZ383....nice....
You can also find the valve in Advanced Discount auto. I would recommend a screw type valve vs a quarter turn valve. I had the quarter turn ball valve from the PO and it leaked by. Installed a screw type and now I have tight shutoff.
 
1980 L82 (5069 made), Dark Green Metalic (844 made)
Gymkhana Suspension, AM/FM/CB, Sporting a ZZ383......... 
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 8:14pmMessage 6 of 21
C
C3RVETTE
Former Member
Send PM
Anacortes, WA - USA
Joined: 12/16/2002
Posts: 1293
Vette(s): 1979 Red #72 C3 Corvette,T-350,Black interior,air,tilt/tele,K&N.And a 1978 Olds Cutlass 350/350,auto,air,2-dr.,buckets
 FLA VETTE said: You can also find the valve in Advanced Discount auto. I would recommend a screw type valve vs a quarter turn valve. I had the quarter turn ball valve from the PO and it leaked by. Installed a screw type and now I have tight shutoff. 
I think you mean a gate valve.The screw down handle closes a "gate" in the valve body that shuts off flow.What size did you use?

|UPDATED|7/10/2004 8:14:20 PM (AZT)|/UPDATED|

Jon,-Majestic Glass Corvette Club-....Red #72,blk.interior,1979 C3 Corvette-TH350,Weiand,Holley,glass tops,Pioneer,3.55's,K&N,Dynomax,Flowmaster 40's,Energy Suspension,Spicer,VB&P(pics soon); 1978 Olds Cutlass Supreme 350/350,Dk. Blue 2-door Coupe-Hotchkis,PST,K&N,XM...'99 Mitsubishi Galant GTZ V6,black/grey leather,intake,strut bars,tint... |IMG|http://www.msnusers.com/cutlasscorvetteworkinprogress/shoebox.msnw?action=ShowPhoto&PhotoID=63|/IMG|

Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/10/04 8:31pmMessage 7 of 21
Profile Pic
FLA VETTE
Free Member
Send PM
ORLANDO, FL - USA
Joined: 12/11/2002
Posts: 459
Vette(s): 1980 L82 Dark Metallic Green Coupe, Gymkhana Suspension, AM/FM/CB, GM ZZ383....nice....
Like Big Fish said, on the smaller of the two lines.
 
1980 L82 (5069 made), Dark Green Metalic (844 made)
Gymkhana Suspension, AM/FM/CB, Sporting a ZZ383......... 
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/12/04 7:17pmMessage 8 of 21
S
Steve
Free Member
Send PM
CONCORD, MA - USA
Joined: 6/12/2002
Posts: 185
Vette(s): 78 Silver Anniversary (2 Tone) L82 auto loaded
You should have a vacuum operated valve that shuts off the heater water from the factory!
Steve |wavey|
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/13/04 4:40amMessage 9 of 21
v
vetteonr
Former Member
Send PM
Southgate, MI - USA
Joined: 4/4/2003
Posts: 249
Vette(s): 1980 L48 4 speed.
Three questions:

1. Does it make that big of a difference?

2. How does it effect the engine cooling since you're cutting off part of the circulation system?

3. What effects will this have on the heater core and return hose if they are dry for a while?

|headscratch| |headscratch| |headscratch| |headscratch|
Corvette..........Enough Said!!!
Be the first to like this post
Sign In to Like this post

Reduce interior heat w/ a hot water shut-off valve

Posted: 7/13/04 5:22amMessage 10 of 21
Profile Pic
kstyer
Lifetime Member
Moderator
Send PM
CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
1. Yes it makes a big difference.
2. It won't affect engine cooling at all. This is a factor with some cars, 4 cyl Mopars for example, but not a GM. Some GM factory set ups have a vacuum operated cutoff valve from the factory to shut off the heater when the A/C is on.
3. The core does not go dry, there is coolant in the other line and core. You just stop it from circulating. You should open it for a short time once in a while to keep from building sludge.

|UPDATED|7/13/2004 5:22:22 AM (AZT)|/UPDATED|
Be the first to like this post
Sign In to Like this post
Share:

in Forum: C3 Electrical, Body and Interior


Sponsored Content