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

Water pump and T stat question

Thread Tools
 
Search this Thread
 
Old Jul 25, 2011 | 03:09 PM
  #1  
00SLPSS's Avatar
Thread Starter
On The Tree
iTrader: (15)
 
Joined: Aug 2005
Posts: 186
Likes: 0
Default Water pump and T stat question

Hey guys, I searched and couldn't find the answers I was looking for.

My water pump went in the car, and I bought an ac delco replacement. They remade it different and I had to buy a thermostat housing and new tstat inside, which are now two different pieces. Water pump all looks the same, minus there is no back plate, and no bolts on the pump pulley, and the diameter of where the t-stat goes is smaller. (my old t-stat doesn't fit inside)

my question is, the thermostat doesn't sit flush prior to me tightening the bolts to it. will this affect it in any negative way? another question, once I get my fans tuned back to 160, is it as simple of me finding the same size/shape t-stat to go in there to switch to 160?

I've had problems ever since ordering from this online company as far as talking to someone competent. I wanted to ask you guys before I go insane google'ing this.



that is how it sits (bolts are just hand tight) and its very simple to tighten down, I don't have to force it. I just don't want to dirty up the part if I have to send it back to these a-holes.

also if I need to just return it all and start new, what should I go with? part #'s etc.

Thanks guys
Reply
Old Jul 25, 2011 | 03:28 PM
  #2  
sjsingle1's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (1)
 
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
Default

you have the LS2 style pump......it does NOT use a LS1 style stat.......other than that they are interchangeable
Reply
Old Jul 25, 2011 | 03:53 PM
  #3  
00SLPSS's Avatar
Thread Starter
On The Tree
iTrader: (15)
 
Joined: Aug 2005
Posts: 186
Likes: 0
Default

thanks for the information sjsingle1, to clarify above ^^, I did buy what was recommended from the company the housing and t-stat after calling them about the fitment. (different than my ls1 style t-stat)

now I have a two piece (1 the housing, the second the t-stat) thermostat to put back in, but it has that little 1/8" or less gap. is it okay that the lower part of the t-stat spring is slightly pushing on the inside there?

Edit

thanks 00pooterss, i see the part inside the water pump and seals off the passage, just wanted to make sure I wasn't forcing anything down.

edit

oldman02z, cool locktite doesn't sound like a bad idea as well.
and clyde it is a two piece housing

Last edited by 00SLPSS; Jul 26, 2011 at 06:09 AM.
Reply
Old Jul 25, 2011 | 04:42 PM
  #4  
00pooterSS's Avatar
TECH Veteran
15 Year Member
Photogenic
Liked
Community Favorite
iTrader: (40)
 
Joined: Mar 2008
Posts: 4,920
Likes: 531
From: Dallas
Default

If I remember correctly the back of the thermostat has a spring and a little flap that contacts the back of the water pump housing. If you can push the thermostat down flush without tightening the bolts it should be just fine.

If you look at the water pump inside you should see where the washer/flap that is on the back of the thermostat contacts the housing and seals off that passage.
Reply
Old Jul 25, 2011 | 11:13 PM
  #5  
oldmano2z's Avatar
TECH Regular
 
Joined: Mar 2011
Posts: 496
Likes: 0
Default

my water pump is the same just tighten it to proper torque . i used lock tite blue stick on all my fasteners also . yeah i had the same gap between tstat and housing . no problem.
Reply
Old Jul 26, 2011 | 12:42 AM
  #6  
Clyde H Frasier Jr's Avatar
Staging Lane
 
Joined: Dec 2008
Posts: 52
Likes: 0
Default

Do you have the therm and housing together? If so, you need the the new LS2 neck and the therm is by itself.
Reply




All times are GMT -5. The time now is 01:52 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE