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

Leaking FAST 92

Thread Tools
 
Search this Thread
 
Old Jun 26, 2013 | 03:34 PM
  #1  
FNSlow's Avatar
Thread Starter
On The Tree
10 Year Member
iTrader: (4)
 
Joined: Jun 2010
Posts: 126
Likes: 0
From: Anderson, SC
Default Leaking FAST 92

I recently got a FAST 92 and I am burning oil. This showed me that the FAST 92 halves were leaking. I couldn't find any threads for people disassembling and sealing up the intake. Does anyone have any links to threads that suggest ways to go about it?
Reply
Old Jun 26, 2013 | 04:55 PM
  #2  
98Zheadsncam's Avatar
Launching!
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (26)
 
Joined: Jun 2011
Posts: 273
Likes: 2
From: Colorado
Default

Originally Posted by FNSlow
I couldn't find any threads for people disassembling and sealing up the intake. Does anyone have any links to threads that suggest ways to go about it?
It's pretty straight forward, like 6 bolts, 3 in the front, 3 in the rear. Pulling off the top half will reveal the orange gasket that snakes it's way in between the runners. You can pick up a new gasket for it for like 25 or 30 bucks. Try Summit. If you want to separate the bottom half from the middle, I believe that's a little more in-depth.
Reply
Old Jun 26, 2013 | 07:55 PM
  #3  
Unertl42's Avatar
TECH Fanatic
iTrader: (63)
 
Joined: Sep 2007
Posts: 1,041
Likes: 0
From: IA
Default

Originally Posted by 98Zheadsncam
It's pretty straight forward, like 6 bolts, 3 in the front, 3 in the rear. Pulling off the top half will reveal the orange gasket that snakes it's way in between the runners. You can pick up a new gasket for it for like 25 or 30 bucks. Try Summit. If you want to separate the bottom half from the middle, I believe that's a little more in-depth.

Like he said, its not hard.
Reply
Old Jun 27, 2013 | 01:45 PM
  #4  
5.slow99's Avatar
Launching!
 
Joined: Feb 2008
Posts: 232
Likes: 0
From: fenton, MO
Default

i dont know if this applies but the newer fast 102's installation instructions tell you to take the shell apart and black rtv the back half to ensure a tight seal. just a thought it could work on those as well
Reply
Old Jun 27, 2013 | 03:34 PM
  #5  
AmarilloWS6's Avatar
TECH Enthusiast
iTrader: (3)
 
Joined: Aug 2011
Posts: 520
Likes: 0
From: Van Buren AR
Default

I bought a used FAST 78 and when I got it in the mail it was black RTV'ed all the way around, no taking that apart without cracking it lol.
Reply
Old Jun 27, 2013 | 05:07 PM
  #6  
2xLS1's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (25)
 
Joined: Nov 2001
Posts: 5,649
Likes: 9
From: Warr Acres, OK
Default

Here is what a leaking FAST 92 looks like.
Attached Thumbnails Leaking FAST 92-iphone-427-medium-.jpg   Leaking FAST 92-iphone-428-medium-.jpg  
Reply
Old Jun 27, 2013 | 08:50 PM
  #7  
98Zheadsncam's Avatar
Launching!
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (26)
 
Joined: Jun 2011
Posts: 273
Likes: 2
From: Colorado
Default

Originally Posted by 2xLS1
Here is what a leaking FAST 92 looks like.
Jesus, no bueno at all.
Reply
Old Jun 27, 2013 | 10:29 PM
  #8  
themealonwheels's Avatar
TECH Fanatic
10 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Jan 2011
Posts: 1,921
Likes: 80
From: North Houston
Default

Maybe I'm new to this, but how does burning oil automatically mean your new intake is leaking? Is this absolutely a new issue, or something you just noticed?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jul 5, 2013 | 09:29 PM
  #9  
FNSlow's Avatar
Thread Starter
On The Tree
10 Year Member
iTrader: (4)
 
Joined: Jun 2010
Posts: 126
Likes: 0
From: Anderson, SC
Default

I got it apart. The gasket looks fine. Should I black RTV the whole thing or just where it was leaking?
Reply
Old Jul 6, 2013 | 02:57 PM
  #10  
dr_whigham's Avatar
The Scammer Hammer
Veteran: Marine Corps
15 Year Member
Photogenic
Liked
iTrader: (49)
 
Joined: Apr 2009
Posts: 6,717
Likes: 24
From: Lafayette, LA
Default

No.

Replace the orange rope gasket. It's spent. Only thing you should have to RTV is where the rope sections meet. That's it.

I'm with themealonwheels. How in the world do you figure a leaking intake manifold has ANYTHING to do with burning oil, or vice versa?
Reply
Old Jul 6, 2013 | 05:02 PM
  #11  
themealonwheels's Avatar
TECH Fanatic
10 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Jan 2011
Posts: 1,921
Likes: 80
From: North Houston
Default

Originally Posted by dr_whigham
No.

Replace the orange rope gasket. It's spent. Only thing you should have to RTV is where the rope sections meet. That's it.

I'm with themealonwheels. How in the world do you figure a leaking intake manifold has ANYTHING to do with burning oil, or vice versa?
Oh, you know what? He just worded it funny, there were two issues. He had a leaking intake. He discovered this because he was "burning oil" (he saw oil at the leak, coming from the intake.)

Now I get it... LOL

So what are you doing about the burning oil? Catch can?
Reply
Old Jul 6, 2013 | 05:42 PM
  #12  
dr_whigham's Avatar
The Scammer Hammer
Veteran: Marine Corps
15 Year Member
Photogenic
Liked
iTrader: (49)
 
Joined: Apr 2009
Posts: 6,717
Likes: 24
From: Lafayette, LA
Default

Good eye, Watson!!

I agree, get a catchcan on that thing pronto. Look into an LS6 valley cover if you haven't done so already as well... Intake is already off.
Reply
Old Jul 6, 2013 | 06:55 PM
  #13  
garygnu's Avatar
TECH Senior Member
 
Joined: Feb 2009
Posts: 5,445
Likes: 4
Default

your MAP sensor gasket mite be leaking ,maybe use black atv there also.using a lot of oil mite be a sign a faulty PCV system,mite need a new PCV valve or new PCV hoses .
Reply
Old Jul 6, 2013 | 07:05 PM
  #14  
markbsae's Avatar
Staging Lane
 
Joined: Jul 2012
Posts: 84
Likes: 0
From: Bakersfield, CA
Default

Originally Posted by 2xLS1
Here is what a leaking FAST 92 looks like.
You throw a rod through the intake? lol!
Reply




All times are GMT -5. The time now is 09:07 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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