350 chev won't run when tach wire is plugged into dizzy what's wrong? - LS1TECH

Go Back   LS1TECH > SBC-BBC-LT1-LT4 PERFORMANCE > Small Block & Big Block Chevy Specific
Log In 
Search


Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions


350 chev won't run when tach wire is plugged into dizzy what's wrong?

Reply
 
Thread Tools Search this Thread
Old 04-20-2011, 10:07 PM   #1
Teching In
 
Trader Rating: 0
Join Date: Jul 2010
Posts: 38
Default 350 chev won't run when tach wire is plugged into dizzy what's wrong?

My buddy has a 1980 z28 that had an aftermarket tach, he is hooking up the original tach but the car won't run when the tach wire is plugged into the dizzy, the car will run perfect when it's unhooked any ideas whatss wrong he wants his tach functional
ilovev8s is offline   Reply With Quote
Old 04-20-2011, 11:45 PM   #2
Teching In
 
Trader Rating: 0
Join Date: Jul 2010
Posts: 38
Default

bumpp
ilovev8s is offline   Reply With Quote
Old 04-21-2011, 05:58 AM   #3
TECH Resident
 
cambirdracing's Avatar
 
Trader Rating: 4
Join Date: Jun 2009
Location: League City Texas
Posts: 865
Default

He is hooking it up the the negative side? The tach might be bad and shorting out. Or he is trying to hook up the wrong wire.
__________________
Annoying neighbors one posi at a time


"When applied at precisely the right time,
ignorance is a powerful tool,
usually surpassing even knowledge"
cambirdracing is offline   Reply With Quote
Old 04-21-2011, 06:59 AM   #4
Teching In
 
Trader Rating: 0
Join Date: Jul 2010
Posts: 38
Default

He's hooking it up in the right spot and I assume it's the right wire, does the tach have the wire going to the dizzy and a wire going to ground? I don't understand why the car wouldn't start with it plugged in
ilovev8s is offline   Reply With Quote
Old 04-21-2011, 04:02 PM   #5
TECH Resident
 
cambirdracing's Avatar
 
Trader Rating: 4
Join Date: Jun 2009
Location: League City Texas
Posts: 865
Default

You can Google 1980 Z28 tach wiring diaghram and find out more than I really know about this subject. GL
__________________
Annoying neighbors one posi at a time


"When applied at precisely the right time,
ignorance is a powerful tool,
usually surpassing even knowledge"
cambirdracing is offline   Reply With Quote
Old 04-23-2011, 11:25 AM   #6
TECH Senior Member
 
LilJayV10's Avatar
 
Trader Rating: 36
Join Date: Apr 2007
Location: Evansville,IN
Posts: 6,166
Default

Either he is putting in the wrong spot or there might be something crossed in the dist. I'd pull the cap and see where the grounding metal tab is. If doesn't run with the tach plugged in it has to be grounding the whole thing out.
LilJayV10 is offline   Reply With Quote
Old 04-24-2011, 06:47 PM   #7
Banned
 
indyboom's Avatar
 
Trader Rating: 11
Join Date: Mar 2006
Location: YOUR MOMS
Posts: 259
Default

what the hells a "dizzy"?
indyboom is offline   Reply With Quote
Old 04-26-2011, 09:38 PM   #8
TECH Senior Member
 
LilJayV10's Avatar
 
Trader Rating: 36
Join Date: Apr 2007
Location: Evansville,IN
Posts: 6,166
Default

Quote:
Originally Posted by indyboom View Post
what the hells a "dizzy"?
It's the distributor. LOL.
LilJayV10 is offline   Reply With Quote
Old 05-02-2011, 04:12 PM   #9
TECH Regular
 
Trader Rating: 0
Join Date: Jan 2005
Location: KAF Afghanistan, fort drum
Posts: 474
Default

If it's an HEI I suspect he's plugging it into the wrong terminal. Needs to be on the other side.

Been a while since I had an HEI tho.
__________________
My ride
2002 M6 WS6, ProCharged and a bunch of other stuff
other vehicles of no importance
Awake455 is offline   Reply With Quote
Reply


Tags
aftermaket, block, car, chevy, install, lead, motor, reasons, run, small, start, tach, tachometer, tpi, wont


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are On
Refbacks are Off


 

All times are GMT -5. The time now is 05:27 AM.


Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details