Header flange clamps bent

[dweller]

This Kerker has bent clamps at the header flanges. Looks like possible overtightening sometime in it's history. Should I try to straighten these during the refurbishment I'm doing? Anyone dealt with this before? Thanks

 

[londonboards]

I have this on my SuperTrapp. I just can't figure a way to bend them back.

And what will stop them bending again if I did.

 

[fastbysuzuki]

With these pipes you have the option of heating up the flanges and tapping them back to shape. (Assuming you have access to a torch and gas)

 

[Guest]

common as far as i can tell, and not really a problem, at least with my yosh.

 

[Greg B]

This Kerker has bent clamps at the header flanges. Looks like possible overtightening sometime in it's history. Should I try to straighten these during the refurbishment I'm doing? Anyone dealt with this before? Thanks

View attachment 58257

Those don't look to bad. I made a tool for straightening the flanges on my Yosh, as they were REALLY bent. I'll see if I can find it and take some photos.

 

[dweller]

Those don't look to bad. I made a tool for straightening the flanges on my Yosh, as they were REALLY bent. I'll see if I can find it and take some photos.

Okay thanks!

 

[dweller]

Here was my solution. Made a special tool out of some thick wall 1.5" ID aluminum tubing. Cut out one side and ground so that it would barely slip over the header tube. Found a truck axle nut socket in the tool box that fit over the flange and then clamped the whole thing in a big vice. Hydraulic press would work too. Worked great and pushed the clamps back almost perferctly straight.

 

[dweller]

Here showing the socket I used...

 

[1948man]

http://www.moccsplace.com/images/nuts/nuts.htm

Something like this might help prevent them from warping again. Sort of a sleeve/reinforcement around the bolts between the flange and head.