Exhaust temperature?

[Jetjoe14]

Hello,
Yes yes I'm new here haha.

Just finished building my Kraken Vesla and am using the Zenoha G320 and Rovan tuned pipe.
Just wondering if anyone knows, what is a typical temperature to expect around the expansion chamber of a pipe?

Reason, i have a decent size crack going through mine (my fault not Rovans) and was going to use solder to fix it, but I'm concerned the pipe may get hot enough to melt the solder when driving.

The solder has a melting temperature of 430F/220c

Thank you for your advice

 

[jeepfreak1972]

Hello,
Yes yes I'm new here haha.

Just finished building my Kraken Vesla and am using the Zenoha G320 and Rovan tuned pipe.
Just wondering if anyone knows, what is a typical temperature to expect around the expansion chamber of a pipe?

Reason, i have a decent size crack going through mine (my fault not Rovans) and was going to use solder to fix it, but I'm concerned the pipe may get hot enough to melt the solder when driving.

The solder has a melting temperature of 430F/220c

Thank you for your advice

Regular Solder will not hold up. Brazing rod will but requires a map torch, at a minimum, to get enough heat in the metal.

 

[Jetjoe14]

Damn, I was hoping to avoid having to braze it, oh well guess that will be tomorrow's project

 

[jeepfreak1972]

Damn, I was hoping to avoid having to braze it, oh well guess that will be tomorrow's project

View attachment 93911

View attachment 93912

Hopefully you can find a way to drill a small hole at each end of the crack so it won't continue to crack.

 

[Jetjoe14]

Before I realized the cracks I had it out in the park last night and man this thing rips the suspension is so plush its like a range rover over bumps

 

[Rep732]

That looks to be aluminum and at the header on a mild steel pipe it will turn blue/purple so I say max maybe 530-550 degrees F.

 

[jeepfreak1972]

Before I realized the cracks I had it out in the park last night and man this thing rips the suspension is so plush its like a range rover over bumps

View attachment 93913

View attachment 93914

I plan on getting one and putting an OBR 34cc reed engine in it eventually. I love the desert buggy look.

 

[Dirty30J]

I think you need to fuse the base metal and some filler rod to properly fix that. That crack appears to be continuing off camera there. You need to weld that, brazing could plug it up but running a bead across it would be better.

 

[jeepfreak1972]

That looks to be aluminum and at the header on a mild steel pipe it will turn blue/purple so I say max maybe 530-550 degrees F.

If it's aluminum it will melt trying to braze it unfortunately. Ive tried it on an aluminum pipe I was trying to fit on a saw.

 

[Dirty30J]

Oh aluminum? Huh, back to tig welding it.

 

[jeepfreak1972]

I think you need to fuse the base metal and some filler rod to properly fix that. That crack appears to be continuing off camera there. You need to weld that, brazing could plug it up but running a bead across it would be better.

I agree. Tig welding is the best option.

 

[Dirty30J]

Actually if you had aluminum rod for a certain procedure it could work.
I had some rod some time ago that was for “soldering” but I never used it. Don’t even know where it is but I purchased it for experimental aluminum soldering

 

[Rep732]

There's always low temp welding rods (730)degrees. I'm not sure it's aluminum but those pitting marks sure look like it's aluminum and not steel

 

[Jetjoe14]

Ill take it to the welding shop on Monday and see if they can weld it along the seam and fix it up. it's apparently steel but can't be certain the entire pipe is steel. I'm sure a professional welder will be able to tell. thank you for your advise !!!

 

[Rep732]

@Jetjoe14 take a magnet to it and tell us if it sticks.

 

[smokinwheel]

OK , my two cents.
Tig weld and it isn't the easiest stuff to weld being so thin. I welded a pipe for my DBXL and it was tricky.
1/16 tungsten , very low amps and the thinnest filler wire you can find, I used a piece of .030 or .032 mig wire.

That appears to be a seam that has split , you can see it continue in a perfectly straight line right off the right side of the picture.

 

[Jetjoe14]

Thanks SmokinWheel ! i'll mention that to the welding shop.

 

[Rep732]

I'd probably just let them fix it or if you suggest to a welder their A: Tell to you to take a hike or B: charge you more for giving them advice.

 

[Dirty30J]

I'd probably just let them fix it or if you suggest to a welder their A: Tell to you to take a hike or B: charge you more for giving them advice.

That’s what I would tell you silently. I can weld friend, let me fix it or you. Face to face, I will allow the customer to feel validated.

 

[Rep732]

@Dirty30J your a better man then most, I get an attitude when I exchange bottles ... it wasn't a dig at him, you never know what kind of personality your going to encounter these days.