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specialk6r

Fixed Header with Water Only

17 posts in this topic

I heard of someone on here fixing a dented-in header with water and gave it a try last night, and it worked great.

Mine was dented about half way in at the first bend, and I just filled it with water about 4 inches passed the dent and stuck it in the freezer. A few hours later I'd take it out and let the water melt, then stick it back in again. I did this 4 times and it's now difficult to tell where the big dent was.

The only thing to watch out for is that you keep the flange (thing that bolts to the cylinder) held above the dented area when you stick it in the freezer. This is because as the dent pops out it may not leave the header perfectly round and the flange can be hard to slide over that part of the header.

Give it a try next time.

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I did it succesfully, three different times with the stock Ti header but each time it took about 3 - 4 cycles of freezing and thawing but it did work good. I'm curious to know if it would work as well on a SS header?

I have yet to dent my SS Power Bomb. ...... why does Yamaha put that Ti thing on there anyway? If you ride anything like the terrain I ride it gets hot and then the first boulder that hits it it acts like a marshmellow :thumbsup:

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Get a take-off headpipe from the yfz450 quad.

they are STAINLESS STEEL, and a GOOD DEAL Stronger than the Titanium ones that we have.

That is what i did after beating the snot out of my TI headpipe. it doesnt get super soft when hot, so it doesnt dent easily at all. in fact, i havent had one dent since i switched over.

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That is so cool! Freezing water to expand a pipe... good idea. Do you think it would work on a small ding?

Probably but not as noticeably as good sized dent....... for a small ding, I don't think it's worth the effort of pulling the header but to each his own :thumbsup:

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Did you somehow plug the ends? I wouldn't think it would work unless the water was trapped somehow. Other wise when it freezes and expands it would just move down the header tube a bit? Unless the ends freeze before the center...hmmm... :thumbsup:

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Did you somehow plug the ends? I wouldn't think it would work unless the water was trapped somehow. Other wise when it freezes and expands it would just move down the header tube a bit? Unless the ends freeze before the center...hmmm... :thumbsup:

I took my pipe to Home Depot and used an 1 1/2" PVC plug on the flanged end and a plastic sink stopper on the other end. Both worked great at sealing both ends of the headpipe. You definitely have to seal off both ends...use duct tape to hold everything in place.

A tried and true fix!! :applause:

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I took my pipe to Home Depot and used an 1 1/2" PVC plug on the flanged end and a plastic sink stopper on the other end. Both worked great at sealing both ends of the headpipe. You definitely have to seal off both ends...use duct tape to hold everything in place.

A tried and true fix!! :thumbsup:

You actually don't have to seal the ends, just fill the dented portion with water a few inches on each side of the dent, (usually in the bend of the pipe). The water starts freezing from the ends and forms it's own plugs, trust me it works........

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Just an update: I went to put my header back on today after great results with the freezing water (no plugs neccesary) and the header didn't quite fit. It seems the expanding water very slightly changed the bend in the pipe. Nothing a little elbow grease couldn't fix, but it wasn't as smooth as a perfect new header. If money is an object, I'd still go for it, but just something to keep in mind. It's still a great technique requiring no tools.

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Like i said before, look for a take-off yfz quad headpipe.

I got mine of ebay for 15 bucks or so, and they are tough as nails.

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$10 is a good price for a fix, but why not do just as good of a job for $0 with water? If I were going to spend money it would be on a SS header of a YFZ quad (which your $10 might pay for if you're lucky.)

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