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

Removing Water pump fittings

Thread Tools
 
Search this Thread
 
Old Jul 28, 2010 | 06:19 PM
  #1  
grifter757's Avatar
Thread Starter
TECH Apprentice
iTrader: (11)
 
Joined: Aug 2006
Posts: 370
Likes: 0
From: Virginia Beach, VA
Default Removing Water pump fittings

So i tried heating these up with a torch to no avail. What am i doing wrong? how hot do they need to get? I was thinking of just plugging them for now are the freeze plugs ok to use? Thanks. yes i searched.
Reply
Old Jul 28, 2010 | 08:44 PM
  #2  
S10xGN's Avatar
TECH Junkie
iTrader: (11)
 
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
Default

Some are about to fall out, of course mine were real hard to get out. I ended up locking the water pump in a vise and using giant vise-grips to flatten the tubes, lock onto them, and twist them out.
Reply
Old Jul 28, 2010 | 11:56 PM
  #3  
jermzz's Avatar
TECH Fanatic
iTrader: (18)
 
Joined: Oct 2004
Posts: 1,205
Likes: 0
From: Bay area, ca.
Default

Originally Posted by grifter757
So i tried heating these up with a torch to no avail. What am i doing wrong? how hot do they need to get? I was thinking of just plugging them for now are the freeze plugs ok to use? Thanks. yes i searched.
You dont wanna heat the fitting, you wanna heat the case around it. if you heat just the fitting you're doing the opposite of what you wanna do.
Reply
Old Jul 29, 2010 | 02:50 PM
  #4  
grifter757's Avatar
Thread Starter
TECH Apprentice
iTrader: (11)
 
Joined: Aug 2006
Posts: 370
Likes: 0
From: Virginia Beach, VA
Default

Originally Posted by jermzz
You dont wanna heat the fitting, you wanna heat the case around it. if you heat just the fitting you're doing the opposite of what you wanna do.
**** thats what i'm doing wrong. Thanks. Now I just gotta figure out what fittings to use or just plug em.
Reply
Old Jul 29, 2010 | 07:52 PM
  #5  
S10xGN's Avatar
TECH Junkie
iTrader: (11)
 
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
Default

Originally Posted by grifter757
**** thats what i'm doing wrong. Thanks. Now I just gotta figure out what fittings to use or just plug em.
Inlet is 1/2" NPT, outlet is 3/8" NPT or you could find cup plugs (sizes unknown).
Reply
Old Jul 30, 2010 | 08:17 AM
  #6  
1994z's Avatar
TECH Regular
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (48)
 
Joined: Apr 2006
Posts: 442
Likes: 2
From: empire,alabama
Default

mine were the easy ones to get out. just heated the pump and they pulled out, dont put to much heat on the pump dont want to damage the seal. took my pump to the auto parts store and matched them up with some freeze plugs. been there for two years now..
Reply
Old Feb 7, 2011 | 03:36 PM
  #7  
1980LT1's Avatar
Staging Lane
iTrader: (7)
 
Joined: Dec 2007
Posts: 62
Likes: 0
From: Appleton, WI
Default

Originally Posted by S10xGN
Inlet is 1/2" NPT, outlet is 3/8" NPT or you could find cup plugs (sizes unknown).
So did you actually tap your water pump and screw in some fittings? I'm looking to do this but I'm unsure of the size I'll need to tap them.
Reply
Old Feb 7, 2011 | 06:52 PM
  #8  
S10xGN's Avatar
TECH Junkie
iTrader: (11)
 
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
Default

Originally Posted by 1980LT1
So did you actually tap your water pump and screw in some fittings? I'm looking to do this but I'm unsure of the size I'll need to tap them.
Here's a build pic, shows a pair of Earl's fittings. One a 3/8 NPT x -10 and the other a 1/2" x -10...

Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Feb 7, 2011 | 09:21 PM
  #9  
1980LT1's Avatar
Staging Lane
iTrader: (7)
 
Joined: Dec 2007
Posts: 62
Likes: 0
From: Appleton, WI
Default

Thats what I was thinking. Thanks for the picture too!
Reply




All times are GMT -5. The time now is 11:17 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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