X-Pipe leak? - 2003-04 Mach 1 Registry Owners Club

JVRMach · 08-19-2008, 02:23 PM

On the drivers side of the car I have an exhaust leak that will not tighten down. What should I do?

SHKR281 · 08-19-2008, 03:19 PM

Tighten both sides at the same time, bring up passenger a little bit then driver, and so forth. Worked for me.

JVRMach · 08-19-2008, 05:33 PM

any thoughts on using that High temp RTV on the drivers side to help seal it up?

PERMATEX 81160 High-Temp RTV Silicone Gasket Maker

R.Shackleford · 08-19-2008, 06:00 PM

What x pipe is it? Does it have the metal sleeve inside the pipe?

jdoug · 08-19-2008, 09:58 PM

I have the same problem-- mine is an SLP X and the leak is coming from where it bolts up to the header. I had an exhaust shop even add some exhaust cement and that only worked for a little while.

CompOrange · 08-19-2008, 10:28 PM

Use a little of this Permatex Ultra Copper RTV on the joints, problem solved

03Mach421 · 08-19-2008, 10:51 PM

Quote:

Originally Posted by SHKR281

Tighten both sides at the same time, bring up passenger a little bit then driver, and so forth. Worked for me.

what he said. and get a new gasket for the passenger side

JVRMach · 08-20-2008, 01:35 PM

Mine is the slp also, My friend put some of that on the left side and it did stop the leak. He said to make sure you let it set for at least 12 hours. But know the other side is leaking after we bolted everything back down so we are going to remove everything and start over using that ultra copper. SLP is pretty good with stuff I am really shocked this does not fit properly. I have a loud mouth ll cat back also.

SHKR281 · 08-20-2008, 02:24 PM

Quote:

Originally Posted by 03Mach421

what he said. and get a new gasket for the passenger side

http://www.ninosport.com/Ford-Mid-pi...8-XR3Z-9450-AA

Here is the gasket that sits between the mid and the exhaust manifold passenger side. Or you can get it at your local ford dealership.

JVRMach · 08-21-2008, 04:31 PM

worked on it last night think I got it fixed. I am getting a dyno and tune done on Tuesday hopefully the number come back good.

Mustang9668 · 09-23-2008, 06:07 AM

If you still are looking for a solution I have been doing a lot of searching to see if there were any fixes for my exhaust leak. Mine was leaking from the same spot as yours. It did it with both Pypes and now my UPR x pipe. I found that there is a small insert/coupler that slides into the top of the x pipe and this is supposed to close the gap and fix it. It was included with both of my x pipes but I had no idea what it was for until tonight.
You can see it here:
http://www.cardomain.com/ride/593952/3

jdoug · 09-27-2008, 07:20 PM

That MAC sleeve looks ideal-- any idea how to get one?

Mustang9668 · 09-28-2008, 04:05 AM

Quote:

Originally Posted by jdoug

That MAC sleeve looks ideal-- any idea how to get one?

I don't believe I have ever seen that piece for sale. I'll look tomorrow and see if I have another one. I had the two, one from my Pypes x and the other from my UPR. Hopefully the trashman hasn't picked up the box by the road yet lol. If the box is still there then I will ship that one to you.

Edit: ...and also the one from Pypes is the exact same size as the one from UPR so it should fit yours too.

RossA81 · 09-28-2008, 08:53 AM

The studs on the manifolds have shoulders that cause the flanges on the pipe to bottom out before its tight enough to seal. Solutions:

-Replace the studs NAPA #600-1819
-Grind the flange for clearance
-Sleeve gasket

Ross

jdoug · 09-29-2008, 12:40 AM

Quote:

Originally Posted by Mustang9668

If the box is still there then I will ship that one to you.

Wow- that's awesome. I'll send you a PM.

jdoug · 09-29-2008, 12:41 AM

Quote:

Originally Posted by RossA81

The studs on the manifolds have shoulders that cause the flanges on the pipe to bottom out before its tight enough to seal.

I'll check that, but mine seems pretty tight-- need to make sure though, thanks for the info.

08-19-2008, 02:23 PM	#1
JVRMach Registered User Join Date: Jul 2008 Location: Owasso, OK Posts: 140	X-Pipe leak? On the drivers side of the car I have an exhaust leak that will not tighten down. What should I do?

08-19-2008, 03:19 PM	#2
SHKR281 USCG Join Date: Oct 2004 Location: New York Posts: 1,458	Re: X-Pipe leak? Tighten both sides at the same time, bring up passenger a little bit then driver, and so forth. Worked for me. __________________ 2004 Oxford White Mach1 M6 IUP "SHKR281" Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the outcome of the vote. -Benjamin Franklin

08-19-2008, 05:33 PM	#3
JVRMach Registered User Join Date: Jul 2008 Location: Owasso, OK Posts: 140	Re: X-Pipe leak? any thoughts on using that High temp RTV on the drivers side to help seal it up? PERMATEX 81160 High-Temp RTV Silicone Gasket Maker

08-19-2008, 06:00 PM	#4
R.Shackleford Road Racin' Mach 1 Join Date: Sep 2006 Location: CA Posts: 1,402	Re: X-Pipe leak? What x pipe is it? Does it have the metal sleeve inside the pipe? __________________ SOLD ... 2003 Mach 1 5spd IUP YouTube.com/a707 MGW Shifter : SCT : Pypes O/R X : Magnapack cat-back : K&N Filter : H&R SS Springs : Tokico D-specs : MM CC Plates : Anthracite Shelby Torq-Thrust M 17x9 -- Falken RT615 275/40

08-19-2008, 09:58 PM	#5
jdoug Regular Guy Join Date: Aug 2005 Location: SoFla Posts: 329	Re: X-Pipe leak? I have the same problem-- mine is an SLP X and the leak is coming from where it bolts up to the header. I had an exhaust shop even add some exhaust cement and that only worked for a little while. __________________ J Doug

08-19-2008, 10:28 PM	#6
CompOrange PSR Mafia Join Date: May 2007 Location: Gilbert, AZ Posts: 2,011	Re: X-Pipe leak? Use a little of this Permatex Ultra Copper RTV on the joints, problem solved __________________ 2010 Triumph Daytona 675 2003 Mach 1 - Azure Blue 5 speed Mostly stock...except for a few goodies

08-20-2008, 01:35 PM	#8
JVRMach Registered User Join Date: Jul 2008 Location: Owasso, OK Posts: 140	Re: X-Pipe leak? Mine is the slp also, My friend put some of that on the left side and it did stop the leak. He said to make sure you let it set for at least 12 hours. But know the other side is leaking after we bolted everything back down so we are going to remove everything and start over using that ultra copper. SLP is pretty good with stuff I am really shocked this does not fit properly. I have a loud mouth ll cat back also.

08-21-2008, 04:31 PM	#10
JVRMach Registered User Join Date: Jul 2008 Location: Owasso, OK Posts: 140	Re: X-Pipe leak? worked on it last night think I got it fixed. I am getting a dyno and tune done on Tuesday hopefully the number come back good.

09-23-2008, 06:07 AM	#11
Mustang9668 saving pennies Join Date: Apr 2008 Location: Griffin, Ga Posts: 1,487	Re: X-Pipe leak? If you still are looking for a solution I have been doing a lot of searching to see if there were any fixes for my exhaust leak. Mine was leaking from the same spot as yours. It did it with both Pypes and now my UPR x pipe. I found that there is a small insert/coupler that slides into the top of the x pipe and this is supposed to close the gap and fix it. It was included with both of my x pipes but I had no idea what it was for until tonight. You can see it here: http://www.cardomain.com/ride/593952/3 __________________ 03 Mach 1--Auto, 4000 stall, 96 cobra intake cams, 4.10s, ARH L/T's, off road X, Moser 31 spline axles, Eaton Posi diff., MM FLSFC, Tokico D-Specs, k&n filter, 17x9/10.5s AFS Mac wheels 03 Cobra--18x9/10.5 TSW Nurburgring Wheels, Nitto NT05's 275/295, Stiegemeier ported, 2.87” pulley, Canton 9-qt oil pan, Spec Stage II clutch, MM coilovers, Bilstein Shocks/Struts, LFP heat exchanger, LFP radiator, Evans cooling system, 14" Brembo 4 Piston calipers, 470whp, 460ft-lbs

09-27-2008, 07:20 PM	#12
jdoug Regular Guy Join Date: Aug 2005 Location: SoFla Posts: 329	Re: X-Pipe leak? That MAC sleeve looks ideal-- any idea how to get one? __________________ J Doug

09-28-2008, 08:53 AM	#14
RossA81 Registered User Join Date: Aug 2007 Location: Parkville, MD Posts: 197	Re: X-Pipe leak? The studs on the manifolds have shoulders that cause the flanges on the pipe to bottom out before its tight enough to seal. Solutions: -Replace the studs NAPA #600-1819 -Grind the flange for clearance -Sleeve gasket Ross

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