The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Electrical

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-21-2010, 12:09 AM   #1
67 c10 guy
Registered User
 
67 c10 guy's Avatar
 
Join Date: Jan 2009
Location: 77042, Texas
Posts: 102
hei Question?

my hei distributor has a wire coming from the tach battery which hat another wire spliced into it. it reaches from tach batt. terminal to the passenger valve cover where its spliced, than goes to passenger inner finder. some thing PO had done. any help with this is appricated also what does the tach batt. go to
__________________
67 C10 longbed 350/th350
13 Ford Fusion 2.0T daily

67 lwb build sold
67 c10 guy is offline   Reply With Quote
Old 02-21-2010, 12:14 AM   #2
GASoline71
"I ain't nobody, dork."
 
GASoline71's Avatar
 
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
Re: hei Question?

Sounds like he used the wire as some sort of weird ground setup... If you don't have a tach... you can pitch it.

You just need to have the ignition wire plugged in to the "batt" side of the HEI for power...

Gary
__________________
'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.

Last edited by GASoline71; 02-21-2010 at 12:19 AM.
GASoline71 is offline   Reply With Quote
Old 02-21-2010, 12:18 AM   #3
Leviticus
Shake and Bake!
 
Leviticus's Avatar
 
Join Date: Feb 2010
Location: Central Coast, CA
Posts: 609
Re: hei Question?

HEI's have two terminals, one is the power supply (Ignition on) and one is the tach connection (transmits RPM). So when you say Tach/Battery terminal, they are two separate terminals.

Is there two wires going to your HEI? If there is only one wire it is your power in, and what ever your PO spliced into it.
__________________
"All tyranny needs to gain a foothold is for people of good conscience to remain silent."
Thomas Jefferson

"You are remembered for the rules you break."
General Douglas MacArthur

"Support Our Troops And The NRA"

Last edited by Leviticus; 02-21-2010 at 12:20 AM.
Leviticus is offline   Reply With Quote
Old 02-21-2010, 02:19 AM   #4
fixit-p
Registered User
 
fixit-p's Avatar
 
Join Date: Dec 2008
Location: Yay Area CA
Posts: 2,329
Re: hei Question?

X2 batt is power for the HEI but if there is a wire comeing from the tach terminal and you have no tach it could be a kill switch the po wired in. If you ground the tach wire it will kill your spark (old school kill switch)
__________________
1965 GMC shortwide big window
1969 Chevy C20 long (for now)
2005 Silverado 2500HD Crew Cab


Quote:
Originally posted by:Abraham Lincoln "The trouble with quotes on the Internet is that it is nearly impossible to discern if they are genuine."
fixit-p is offline   Reply With Quote
Old 02-21-2010, 08:23 PM   #5
cparman
sharp as a marble
 
Join Date: Jan 2007
Location: atlantic beach,florida
Posts: 1,082
Re: hei Question?

if the Battery wire is split and running towards the radiator, it might be a source of 12v+ for an electric choke??? Might check to see if you have power or ground on the wire in question with the key on
cparman is offline   Reply With Quote
Old 02-22-2010, 06:22 PM   #6
67 c10 guy
Registered User
 
67 c10 guy's Avatar
 
Join Date: Jan 2009
Location: 77042, Texas
Posts: 102
Re: hei Question?

its power on the wire for sure. but it runs toward the heater case
__________________
67 C10 longbed 350/th350
13 Ford Fusion 2.0T daily

67 lwb build sold
67 c10 guy is offline   Reply With Quote
Reply

Bookmarks

Tags
distributor, hei, tach


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

Forum Jump


All times are GMT -4. The time now is 12:41 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com