Print Page - Hairline Crack in my Sachs 125 pipe

Title: Hairline Crack in my Sachs 125 pipe
Post by: MattyQ on November 30, 2007, 01:17:32 PM

I was wondering is you can weld or what can be done for a hairline crack 3 inches long located in the bottom portion of my muffler located just below the exhaust manifold? I was told if I weld it , it could possibly just burn a whole through the pipe!

thanks ,
Matty

Matthew Quinlan

Title: Hairline Crack in my Sachs 125 pipe
Post by: thrownchain on November 30, 2007, 01:33:42 PM

Find a welder that can weld thin sheet, some one who builds exhaust pipes should be able to salvage it. If it's really gone, they should be able to tell you up front if it will burn through. You're talking MIG or TIG welding. Take your time and find the right guy.

Title: Hairline Crack in my Sachs 125 pipe
Post by: Merlin on December 02, 2007, 11:34:44 AM

This is all you need to fix your pipe, never leave home without it.

(http://i211.photobucket.com/albums/bb251/BigMerlinpics/th_ND620001-6.jpg) (http://i211.photobucket.com/albums/bb251/BigMerlinpics/ND620001-6.jpg)

Quote: Thomas Jefferson, We are all born ignorant, some work to remain that way.
Quote:Merlin, "it is impossible to teach those that wish not to be taught".

Title: Hairline Crack in my Sachs 125 pipe
Post by: TGTech on December 02, 2007, 11:48:19 AM

Merlin, how did you end up with "my" torches? Looks exactly like my set.

Matt,
FYI, when the Penton's were being built, the pipes were built using oxy/acetylene torches, not tig or mig welders. So the suggestion by Merlin is a good one. I personally like to use a small torch to fix cracks in the the pipe body.

When mounting brackets, I like to use a tig welder, because usually the brackets are a little thicker, and the control of the heat is easier.

All this being said, welding experts with the correct type of equipment for the job, can fix anything. A mig welder with low enough amps and speed will work too.

Dane

Title: Hairline Crack in my Sachs 125 pipe
Post by: Merlin on December 02, 2007, 12:14:32 PM

Dane,[:o)] I was hoping you didn't notice,[}:)] I snuck'em back this morning, thanks a bunch!!;)

Quote: Thomas Jefferson, We are all born ignorant, some work to remain that way.
Quote:Merlin, "it is impossible to teach those that wish not to be taught".

Title: Hairline Crack in my Sachs 125 pipe
Post by: SouthRider on December 03, 2007, 12:15:34 PM

FYI - I welded hundreds & hundreds of dirt bike exhausts using an oxy/acetylene torch like the one above, and using coat hangar as a welding rod - no flux needed.

Never had a single failure.

It's actually a fairly easily aquired skill.

Get some practice on something you don't care about first though or you may end up with a "gorilla weld" - you know - "ugly but strong"........

1979 SERA Louisiana State Champ

Title: Hairline Crack in my Sachs 125 pipe
Post by: MattyQ on December 04, 2007, 01:48:32 PM

Thanks for all the great info ! Matty

Matthew Quinlan

Penton Owners Group

General Discussion => Penton Talk => Topic started by: MattyQ on November 30, 2007, 01:17:32 PM