I found my exhaust leak!!!!

[Comin' in Hot]

Within the first couple weeks of owning my trilogy marauder, I fixed an exhaust leak by changing the collector gaskets. I used Percy's aluminum gaskets. Fast forward three years and 60,000 miles later, I started noticing my exhaust getting louder and louder. Last week it got really loud!! I looked and could see carbon marks showing one gasket was leaking again. Here is the gasket I pulled out next to the replacement (exactly what I used last time).

I've never seen one melt and deform like this

http://img.tapatalk.com/d/14/06/12/3e8uvepa.jpg

[RacerX]

That is odd. Percy's are great though. That's what my header gaskets are.

[Comin' in Hot]

That is odd. Percy's are great though. That's what my header gaskets are.


My Trilogy has Kooks headers, I thought it was very odd too, but think any other type of gasket would have come apart long ago. I was driving 300+ miles at 75-80mph twice a week, so it could have been the constant long duration heat that killed the gaskets

[justbob]

Dang man! Still better than my set up..

I'm going to modify my stupidly designed Stainless Works headers and pre muffs with V band clamps and weld on adapters.. Why would they design something that can't be easily removed? Makes zero sense to me.

Probably going to fab an H pipe as well while under there.

I really liked the ball and socket design too on my old MAC headers. Made install a leak free breeze. I just want to try the V bands after helping Brandon install his turbo. They are such a simplistic heavy duty design.


Self proclaimed Builder Of Badassery.

Buy it, Break it, Build it BETTER.
"Since 2004"

[RacerX]

This is what is at the end of my Kooks, good to 2,000 deg: http://www.kooksheaders.com/exhaust-collector-gasket-1213.html

[sailsmen]

Has it had the AFR checked on a Dyno?

A lean air/fuel mixture will cause an engine to create more heat than a rich air/fuel mixture.

[Spectragod]

Dang man! Still better than my set up..

I'm going to modify my stupidly designed Stainless Works headers and pre muffs with V band clamps and weld on adapters.. Why would they design something that can't be easily removed? Makes zero sense to me.

. I just want to try the V bands after helping Brandon install his turbo. They are such a simplistic heavy duty design.


Self proclaimed Builder Of Badassery.

Buy it, Break it, Build it BETTER.
"Since 2004"

^^^Exactly^^^ what I did with my SW LT's and cats.....

[MOTOWN]

^^^Exactly^^^ what I did with my SW LT's and cats.....

Ill be doing this to my SW as well!:mad2:

[RacerX]

I found your exhaust leak! Use FLIR next time!

Yif0i24t_4E

[cougar9150]

Had the same issues on my kooks, after going thru 2 sets I swapped to the Mr. Gasket ultra seal gaskets with exhaust paste (gray in color can't remember brand)

[Jolly Roger]

Within the first couple weeks of owning my trilogy marauder, I fixed an exhaust leak by changing the collector gaskets. I used Percy's aluminum gaskets. Fast forward three years and 60,000 miles later, I started noticing my exhaust getting louder and louder. Last week it got really loud!! I looked and could see carbon marks showing one gasket was leaking again. Here is the gasket I pulled out next to the replacement (exactly what I used last time).

I've never seen one melt and deform like this

http://img.tapatalk.com/d/14/06/12/3e8uvepa.jpg

Just curious to know if all of the bolts were in when you found the leak?
I ask because the bottom bolt holes seem strangely close together.
If all of the bolts were not in at the time,
that might have allowed the gasket to disfigure like I has.:(

[Blown3.8]

My aluminum gaskets did that too on my bird. Wonder how much power i lost cause the hole was choked down.

[Comin' in Hot]

Dang man! Still better than my set up..

I'm going to modify my stupidly designed Stainless Works headers and pre muffs with V band clamps and weld on adapters.. Why would they design something that can't be easily removed? Makes zero sense to me.

Probably going to fab an H pipe as well while under there.


V-band clamps are the way to go, and I will use them the next time I change any exhaust system.


Has it had the AFR checked on a Dyno?

A lean air/fuel mixture will cause an engine to create more heat than a rich air/fuel mixture.

It hasn't been checked recently, but I think that I would have killed the engine by now if it wasn't right.


I found your exhaust leak! Use FLIR next time!

Yif0i24t_4E

Every time I go through airport security I give them a show.


Just curious to know if all of the bolts were in when you found the leak?
I ask because the bottom bolt holes seem strangely close together.
If all of the bolts were not in at the time,
that might have allowed the gasket to disfigure like I has.:(

Yes, all the bolts were in and tight

[Comin' in Hot]

Had the same issues on my kooks, after going thru 2 sets I swapped to the Mr. Gasket ultra seal gaskets with exhaust paste (gray in color can't remember brand)


My aluminum gaskets did that too on my bird. Wonder how much power i lost cause the hole was choked down.

I'm glad to know I'm not the only one.

[MENINBLK]

Within the first couple weeks of owning my trilogy marauder, I fixed an exhaust leak by changing the collector gaskets. I used Percy's aluminum gaskets. Fast forward three years and 60,000 miles later, I started noticing my exhaust getting louder and louder. Last week it got really loud!! I looked and could see carbon marks showing one gasket was leaking again. Here is the gasket I pulled out next to the replacement (exactly what I used last time).

I've never seen one melt and deform like this

http://img.tapatalk.com/d/14/06/12/3e8uvepa.jpg

I'd say your user name is just about right.....

[lifespeed]

Dang man! Still better than my set up..

I'm going to modify my stupidly designed Stainless Works headers and pre muffs with V band clamps and weld on adapters.. Why would they design something that can't be easily removed? Makes zero sense to me.

V-band is the only way to fly! More time/money up front but saves headaches down the road. There is nothing quite so annoying as an exhaust leak.