LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Fixing Leak on #1 slip fit primary

Thread Tools
 
Search this Thread
 
Old Oct 4, 2005 | 09:42 AM
  #1  
95patriotZ's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 346
From: Wisconsin
Fixing Leak on #1 slip fit primary

How do I fix an exhaust leak at the slip fit joint of my mac mids? Any tips would be helpful. Thanks
Old Oct 4, 2005 | 12:50 PM
  #2  
Z28SORR's Avatar
Registered User
 
Joined: Jul 2002
Posts: 3,768
From: Friendswood, TX, USA
Re: Fixing Leak on #1 slip fit primary

I can only think of one thing that might work. One of those exhaust tools that are supposed to expaned the pipe.
Old Oct 4, 2005 | 02:41 PM
  #3  
95patriotZ's Avatar
Thread Starter
Registered User
 
Joined: Apr 2003
Posts: 346
From: Wisconsin
Re: Fixing Leak on #1 slip fit primary

I'm not sure what you mean. It has a normal slipfit like other exhaust peices do, and it has a clamp on it with a bolt that tightens it. I have tried to get it as tight as possible but it still leaks. Is there any type of exhaust sealing silicone i can put in there to seal it up tighter?
Old Oct 4, 2005 | 02:59 PM
  #4  
Birdman7389's Avatar
Registered User
 
Joined: Mar 2002
Posts: 1,736
From: Bay Area, CA
Re: Fixing Leak on #1 slip fit primary

You can use Copper Seal RTV, and one of the Stainless 3" wide band clamps that you can get from Thunder, Summit or Jegs.
Old Oct 4, 2005 | 03:49 PM
  #5  
Casey_SS's Avatar
Registered User
 
Joined: Aug 2004
Posts: 107
From: Cedar Park, TX
Re: Fixing Leak on #1 slip fit primary

I had mine welded....took care of the leak and the only downside is having to remove the steering arm to get the header on or off. It's just two bolts and slides right out, so not that big of a deal to me living in Texas where bolts don't rust too bad. I'd look for a different solution if I lived up north though.....
Old Oct 4, 2005 | 05:17 PM
  #6  
1racerdude's Avatar
Banned
 
Joined: May 2003
Posts: 6,661
From: LA (lower Alabama)
Re: Fixing Leak on #1 slip fit primary

Ger a stainless 3" wide band clamp and put on it. It won't leave a crease like a regular clamp so ya can get it apart again.
Old Oct 4, 2005 | 05:40 PM
  #7  
97 RedSS's Avatar
Registered User
 
Joined: Aug 2000
Posts: 1,071
From: Dallas,TX
Re: Fixing Leak on #1 slip fit primary

I welded my hooker lt's also...no leaky

Cody
Old Oct 4, 2005 | 06:15 PM
  #8  
sscott's Avatar
Registered User
 
Joined: Jan 1999
Posts: 188
From: Florida
Re: Fixing Leak on #1 slip fit primary

I used black RTV silicone sealer, I havn't had a problem yet.
Old Oct 4, 2005 | 10:56 PM
  #9  
Lt1t56's Avatar
Registered User
 
Joined: Oct 2002
Posts: 567
From: Texas
Re: Fixing Leak on #1 slip fit primary

I had the same problem with my Z that I sold, just buy a small muffler clamp (U-bolt with 2 nuts) the exact same diameter of the pipe and snug it down.
It will crush the pipe slightly, but the pipe will be still removable in the future.
I beleive it was a 1 5/8" clamp, but it has been a while so not for sure on size.
Old Oct 5, 2005 | 10:39 AM
  #10  
Zachz28's Avatar
Registered User
 
Joined: Dec 2003
Posts: 298
From: Naperville, Il
Re: Fixing Leak on #1 slip fit primary

Muffler Weld shold seal it but it isnt to hard to remove eather.
Old Oct 5, 2005 | 06:33 PM
  #11  
marshall93z's Avatar
Registered User
 
Joined: Feb 2003
Posts: 2,639
From: Mooresville, NC
Re: Fixing Leak on #1 slip fit primary

My AS&M's never leaked.
Old Oct 5, 2005 | 09:55 PM
  #12  
stereomandan's Avatar
Registered User
 
Joined: Jun 2003
Posts: 3,620
From: Saginaw, Michigan
Re: Fixing Leak on #1 slip fit primary

Originally Posted by marshall93z
My AS&M's never leaked.
That was helpful.

Anyway, neither has my slip joint on the MAC's. I used Ultra Copper RTV when I put it together and got a few long extensions for the socket wrench and tightened it down good. The first time, I tightened it down so hard the bolt broke, so I got a new bolt and nut from the hardware store and tightened it down TIGHT. No leaky.

Smear a good amount of the silicon on both of the mating surfaces. You might want to put a sacrificial O2 sensor in for a while, or put a bolt in the O2 whole, because the RTV can mess with the O2's as the extra burns off.

Dan
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Magenta_Hearts
New Member Introduction
4
Mar 25, 2015 10:24 AM
alex5366
General 1967-2002 F-Body Tech
4
Feb 17, 2015 10:43 PM
94Z28LS1toLT1
LT1 Based Engine Tech
7
Jan 15, 2015 07:18 PM
MislMan
Drag Racing Technique
1
Jul 19, 2002 11:41 AM




All times are GMT -5. The time now is 10:34 AM.