Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

LS1 starter

Thread Tools
 
Search this Thread
 
Old Dec 17, 2013 | 05:10 PM
  #1  
Mista Blazer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Oct 2012
Posts: 507
Likes: 0
From: Moore, Oklahoma
Default LS1 starter

This is probably a stupid question... but is it possible to get the power and neg words backwards? I just got my motor back in and installed a new starter. But went to start it. And wouldn't crank it acted like it have enough tourqe to turn the crank. But I know it will turn I was turning it by hand. I didn't put much thought into it when I checked my terminals but the power was pretty warm. Didn't think much tried to start it again and saw smoke. I melted the two wires... so is it possible I worked the starter wrong?
Reply
Old Dec 17, 2013 | 08:32 PM
  #2  
Paul Bell's Avatar
That's MISTER MODERATOR
20 Year Member
Photogenic
Liked
Loved
iTrader: (9)
 
Joined: Nov 2005
Posts: 7,615
Likes: 65
From: NYC
Default

The starter gets a heavy positive cable from the battery. The heavy negative cable from the battery goes to the engine block, not the starter so it's kind of impossible to mix them up at the starter.

Something else is wrong. DISCONNECT THE BATTERY because they tend to explode when presented with a dead short.
Reply
Old Dec 17, 2013 | 08:58 PM
  #3  
Mista Blazer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Oct 2012
Posts: 507
Likes: 0
From: Moore, Oklahoma
Default

Originally Posted by Paul Bell
The starter gets a heavy positive cable from the battery. The heavy negative cable from the battery goes to the engine block, not the starter so it's kind of impossible to mix them up at the starter.

Something else is wrong. DISCONNECT THE BATTERY because they tend to explode when presented with a dead short.
Not sure if I follow on this.. there are 3 wires 1positive. One ground. One enigizer. All attached to the starter. Other ground goes to body up by the battery, only two other positives one goes to alt other goes to fuse block.

Is there supposed to be a wire on the battery harness that only goes to the block?
Reply
Old Dec 17, 2013 | 09:16 PM
  #4  
Mista Blazer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Oct 2012
Posts: 507
Likes: 0
From: Moore, Oklahoma
Default

Right?

Reply
Old Dec 18, 2013 | 05:23 AM
  #5  
Paul Bell's Avatar
That's MISTER MODERATOR
20 Year Member
Photogenic
Liked
Loved
iTrader: (9)
 
Joined: Nov 2005
Posts: 7,615
Likes: 65
From: NYC
Default

Tell us where the "starter neg" wire was originally attached to before you started this job.
Reply
Old Dec 18, 2013 | 09:28 AM
  #6  
soundengineer's Avatar
8 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (16)
 
Joined: Jul 2003
Posts: 4,651
Likes: 17
From: Chicago IL
Default

there is no "Starter Negative"...the starter negative is the Engine Block...the starter does not have a Ground lug

the one you have labeled "Starter Negative" in that picture, connects to the Block...it is an engine Ground.....the starter will ground thru the engine


the starter gets the odd lug with the sideways piece coming off of it...
this goes to the main lug of the starter

there will be a smaller wire coming from somewhere else in the car that goes to the small lug of the starter
if its an F-body...the smaller terminal on the starter gets a wire that comes from the 3 connectors on the passenger side strut tower area
Reply
Old Dec 18, 2013 | 10:49 AM
  #7  
Mista Blazer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Oct 2012
Posts: 507
Likes: 0
From: Moore, Oklahoma
Default

...welp.. now i know why my wires melted...

Ok so i know i dont have the bolt for the block ground anymore due to it still atached to the LS1 i sold.. what size is the bolt so i can buy a new one. also the ground strap on the driver side, what bolt size is that? we took it off while tesitng other possiblities and now we cant find it either -.-"
Reply
Old Dec 18, 2013 | 11:59 AM
  #8  
soundengineer's Avatar
8 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (16)
 
Joined: Jul 2003
Posts: 4,651
Likes: 17
From: Chicago IL
Default

Originally Posted by Mista Blazer
...welp.. now i know why my wires melted...

Ok so i know i dont have the bolt for the block ground anymore due to it still atached to the LS1 i sold.. what size is the bolt so i can buy a new one. also the ground strap on the driver side, what bolt size is that? we took it off while tesitng other possiblities and now we cant find it either -.-"

M10x1.5 I believe...
I know its the same size as the knock sensors because you can put a knock sensor in the same hole on the block...LOL
and I know this because I moved mine from the valley to the side of the block...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-1

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-2

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-3

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-4

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-5

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-6

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-7

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-8

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-9

10 Camaros You Should Never Buy

 
Old Dec 18, 2013 | 12:47 PM
  #9  
Mista Blazer's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Oct 2012
Posts: 507
Likes: 0
From: Moore, Oklahoma
Default

Originally Posted by soundengineer
M10x1.5 I believe...
I know its the same size as the knock sensors because you can put a knock sensor in the same hole on the block...LOL
and I know this because I moved mine from the valley to the side of the block...
Oh hell ddidnt know it was the same spot! hell i was thinking about doing that.


Would you by chance know the one for the ground strap on the engine on the driver side?
Reply
Old Aug 10, 2024 | 05:06 PM
  #10  
JoshuaGrooms83's Avatar
TECH Addict
15 Year Member
Shutterbug
Liked
Loved
iTrader: (2)
 
Joined: Oct 2010
Posts: 2,127
Likes: 169
From: Locust Grove, VA
Default

I know old, but if I swap the LS1 out for an LQ4, where do I put that large ground that use to be by the starter on the block? I don't think the LQ4 has a ground point like the ls1 did. Where are yall putting that wire now? Can I put that on the alternator ground if it has a provision for it like the power master alternator?
Reply
Old Aug 10, 2024 | 05:24 PM
  #11  
JacobChevys's Avatar
12 Second Club
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2015
Posts: 154
Likes: 37
From: West Coast
Default

Originally Posted by JoshuaGrooms83
I know old, but if I swap the LS1 out for an LQ4, where do I put that large ground that use to be by the starter on the block? I don't think the LQ4 has a ground point like the ls1 did. Where are yall putting that wire now? Can I put that on the alternator ground if it has a provision for it like the power master alternator?
Take the negative ground wire out of the wire loom and strap it to where the AC compressor bracket would go. There’s plenty of cable. It’s also the same size bolt hole, easy fix
Reply
Old Aug 10, 2024 | 06:38 PM
  #12  
JoshuaGrooms83's Avatar
TECH Addict
15 Year Member
Shutterbug
Liked
Loved
iTrader: (2)
 
Joined: Oct 2010
Posts: 2,127
Likes: 169
From: Locust Grove, VA
Default

Ok, sounds good. Just wasn't sure If it was advisable to connect it to the alternator or not. I found my bolt off the old ls1 to hook it up to as well. Glad I didn't get rid of the block yet lol
hooked right up, thanks for the advise

Last edited by JoshuaGrooms83; Aug 10, 2024 at 07:30 PM.
Reply
Old Aug 11, 2024 | 08:29 AM
  #13  
Treburkulosis's Avatar
TECH Enthusiast
Photogenic
Liked
Loved
Community Favorite
 
Joined: Feb 2024
Posts: 619
Likes: 309
From: Haslet, TX
Default

Originally Posted by JacobChevys
Take the negative ground wire out of the wire loom and strap it to where the AC compressor bracket would go. There’s plenty of cable. It’s also the same size bolt hole, easy fix
That is where mine is.
Reply




All times are GMT -5. The time now is 02:37 AM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE