C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 Electrical
Not Logged In! Login or Register!  Users Online: 14 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
Mid America Motorworks
Volunteer Vette Products
VetteBookStore.com
Bair's Corvettes
CorvetteClothing.com

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
1 UNEK82
Karla's82vette
Featured Links

Buy Now
Kindle
Kindle


Chevrolet Corvette: 1968 thru 1982, All V8 models (Haynes Manuals) (Paperback)
Chevrolet Corvette: 1968 thru 1982, All V8 models (Haynes Manuals) (Paperback)


Corvette by the Numbers
Corvette by the Numbers


Corvette: America's Sports Car Yesterday, Today, Tomorrow (Hardcover)
Corvette: America's Sports Car Yesterday, Today, Tomorrow (Hardcover)



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
5/16/14 11:37pm - Original Message: 'Disconnected Lead'
dbarnesid
Former Member
- Send Private Message


Boise, ID - USA

Vette(s):
1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...

Joined: 5/29/2013
Posts: 159
There is a sensor just below the exhaust manifold on the right side. It's a 1972 350 engine. The sensor is round with two flat male contacts. The connector was laying on top of the manifold and it is melted. Does anyone know what this is? The water temp sensor is on the driver side. So I'm stumped.

____________________________________
 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
5/17/14 11:16am - Reply: 'Re: Disconnected Lead'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19458
It's for the TCS(transmission controlled spark) system. It is designed to block vacuum to the distributor until the engine is at operating temp, AND the trans is placed in high gear(3rd on autos, 3rd-4th on standards). The system also includes a solenoid to control the vacuum, a switch on the trans, and a timer mounted on the firewall.

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
5/17/14 6:54pm - Reply: 'Re: Disconnected Lead'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 870
Unless you are going for NCRS, you don't need it.  Just run manifold vacuum to the distributor, which is probably what you have now.

____________________________________
 Reply Reply  Quote Reply w/Quote
5/18/14 5:21pm - Reply: 'Re: Disconnected Lead'
dbarnesid
Former Member
- Send Private Message


Boise, ID - USA

Vette(s):
1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...

Joined: 5/29/2013
Posts: 159
This is why I love asking questions here. You guys are REALLY helpful!

____________________________________
 Reply Reply  Quote Reply w/Quote
5/22/14 5:40pm - Reply: 'Re: Disconnected Lead'
dbarnesid
Former Member
- Send Private Message


Boise, ID - USA

Vette(s):
1972 mille miglia red corvette convertible. This is a car currently under restoration. The pic above is of me and my Ph.D. candidate daughter. She, not my Vette, is my pride and joy. Smile...

Joined: 5/29/2013
Posts: 159
F4Gary said: Unless you are going for NCRS, you don't need it.  Just run manifold vacuum to the distributor, which is probably what you have now.



Car is on lift right now so I can't check but I think you're right. Since it has probably been disconnected for a while the vacuum undoubtedly runs from manifold to distributor.

____________________________________
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 Electrical
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30