Crushed header tube repaired overnight

[Pat Conlon]

Thanks Mike!

[Miker]

Thanks Mike!

No prob

[Paul.1478]

I have seen the results of fulling pipes with water and freezing them but outside in the winter. They were expansion chambers for 2 stroke. Worked well. It would be harder with the 4 stroke header pipes.

[ribbert]

Mike, before I throw the BS flag, what kind of plugs did you use?

I'm also struggling with the idea of what you could plug the ends with that would withstand a greater force than that required to push out a dent, particularly a dent on a heavy gauge SS small diameter pipe on a bend.


Noel

[Miker]

Mike, before I throw the BS flag, what kind of plugs did you use?

I'm also struggling with the idea of what you could plug the ends with that would withstand a greater force than that required to push out a dent, particularly a dent on a heavy gauge SS small diameter pipe on a bend.


Noel

I was surprised how well it worked.

A discussion on exactly how water freezes and expands under pressure when cooled to zero degrees Fahrenheit is probably better left to articles written by scientists who study the topic.

Watch the vid in my previous response and/or run a search and find the other vids on the topic. That also appears to be a heavy gauge four stroke header in the vid; not a thin wall two stroke. Worked on both our applications. You could also grab a length of 18 gauge stainless, dent it, and experiment.