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Author Topic:   Headers Cracking
hasben
Member
posted September 18, 2003 12:52 PM
Probably all of the above. Poorly built headers, being bent and the welding all could affect it.


2nd2none
Member
posted September 18, 2003 02:33 PM
I have seen alot of schoenfeld headers crack in the bends and along the flanges.


George Gilliland
Member
posted September 18, 2003 05:06 PM
I have found that once a header has been hit hard enough to bend slightly then the cracks start. I make it a habbit to inspect every couple of weeks and weld them as needed. If they are not tweeked then it usually takes a long time before cracks appear.


Racer X
Member
posted September 18, 2003 07:04 PM
I would like to know what kind of headers also?We ran speedway headers and they cracked after about a month.I guess you get what you pay for.A $100 set of headers is what you get.JUNK


Rick D
Member
posted September 19, 2003 03:48 PM
I seem to see a lot of the silver coated headers cracking lately, I am not sure if it is the coating, or the brand of header used.
I have a 5 y/o set of shoenfields 180 degree headers that work great, stay out of the way, and look as good as when I bought them.


zeroracing
Member
posted September 23, 2003 04:54 PM
We had trouble with headers cracking until we mounted them different. We have shonefeilds that are slip together adjustables.We don't weld the primaries together.We use a stop ring on two of the upper primary tubes on each header for the bottom primarie tubes to slide up against.We then use springs that are used on snowmobile or motorcycle expansion chambers to keep the two header sections together.We also support the collector, muffler part with the same type of springs.We try to hang the mufflers up to the frame with these springs to take some of the weight off.We bend 1/8 inch rod in small loops to weld to the headers for the springs to attatch.These springs are made for extreem heat.We bought ours at a Honda motorcycle dealership.


wissota3x
Member
posted September 29, 2003 09:24 PM
We had trouble with headers cracking until we mounted them different. We have shonefeilds that are slip together adjustables.We don't weld the primaries together.We use a stop ring on two of the upper primary tubes on each header for the bottom primarie tubes to slide up against.We then use springs that are used on snowmobile or motorcycle expansion chambers to keep the two header sections together.We also support the collector, muffler part with the same type of springs.We try to hang the mufflers up to the frame with these springs to take some of the weight off.We bend 1/8 inch rod in small loops to weld to the headers for the springs to attatch.These springs are made for extreem heat.We bought ours at a Honda motorcycle dealership.