B Pipe pin holes in Chamber, problem?

[CPluff617]

So I just bought a new/used complete B Pipe a few weeks back and everything was in great shape except I noticed the B Pipe has a couple little pin holes in it. It almost looks like it was sand blasted at some point and a couple spots were weak and created the pin holes. Any ways my questions are, will this create much of an issue short of dumping some exhaust into the bilge? And second question is, I was thinking about (being that it's already prepped) just powder coating it, maybe 2 coats and that should close up the pin holes. Only concern with that is, will it still run how it's supposed to in relation to heat and displacement of that heat? Thanks in advance for any input!!

 

[Freakrider]

I've had JB weld fix one where the previous owner had it rubbing the weld on the tank...and the fix lasted too if prepped correctly.

 

[AAlamo]

Ive used jb weld on chambers before with good results as well. You do not want an exhaust leak under the hood, it will cause problems with the motor not getting enough fresh air and bogging. Spot welds would probably work too, just not sure of how many pinholes you are referring to.

 

[Christian_83]

When you say pinholes. Is that full pin hole, to the inside of chamber or just pinholes pitting in the chamber (not penetradet) ?
If they are all the way, i would suggest get the spots welded. If you have minor exhaust leaks, it will make your engine run bad and could make you chase your tail, if engine is down with 10-15% power due to a small exhaust leaks on the chamber, on bottom or other places were you will not see that, when looking into the engine compartment.

 

[Storbeck]

Exhaust leaks are bad. My own personal opinion, if I had a chamber with pin holes I would weld them. If I was unable to weld them, I would not be above using JB weld and it will probably be a perfectly fine functional pipe, but the minute you have any issue the first thing to check would be the chamber.

I would not spend the money to powdercoat a jb welded pipe, and I would especially not trust the powdercoat to seal the pin holes. I actually think it might work, but why spend the money to end up with something that is questionable. My $.02.

 

[CPluff617]

When you say pinholes. Is that full pin hole, to the inside of chamber or just pinholes pitting in the chamber (not penetradet) ?
If they are all the way, i would suggest get the spots welded. If you have minor exhaust leaks, it will make your engine run bad and could make you chase your tail, if engine is down with 10-15% power due to a small exhaust leaks on the chamber, on bottom or other places were you will not see that, when looking into the engine compartment.

They're pin holes all the way through, I believe they WERE putting and then when prev. Owner sandblasted it, the pitting gave way to 2 little pin holes in 2 separate spots, not more than 4"-5" apart. I dont know if I would want to try and spot weld it, being that theres a dime size of pitting around the pin hole, IF the weld worked I'd imagine it wouldn't be very pretty lol. I dont think JB weld would be a bad idea thought and then I could epoxy paint over it!

 

[CPluff617]

Exhaust leaks are bad. My own personal opinion, if I had a chamber with pin holes I would weld them. If I was unable to weld them, I would not be above using JB weld and it will probably be a perfectly fine functional pipe, but the minute you have any issue the first thing to check would be the chamber.

I would not spend the money to powdercoat a jb welded pipe, and I would especially not trust the powdercoat to seal the pin holes. I actually think it might work, but why spend the money to end up with something that is questionable. My $.02.

I'm worried to weld because, of the pitting around the holes, even with my Tig I'd imagine I would still be chasing a bit! My thought on the powder coating (I have the means to do it in house) is, I ride Stunt Bikes aswell and with those I've cut and re-built custom tanks with a bowl shaped top for my to sit in. When doing so even the best welder will end up with a pin hole or 2 95% of the time! Plus you loose the factory sealer on the inside that protects from rust, the fix is an epoxy tank sealer that's fuel and solvent safe that seals the pinholes and protects the new metal and exposed existing. This sealer has a composition very similar to powder coating so my thought was, with doing a 2 coat of powdercoating it should surely fill the holes (now after some feedback though I think I'd definitely JB Weld first) but my worry is if it would effect the function of the chamber at all? Like engine builders generally steer against powder coating cylinder blocks because, it then doesn't allow the cylinders to disperse the heat as they're intended to and creates and unstable environment for the ignition process. Just not sure if it would do something similar to this, powdercoating a chamber??

 

[wanderer1]

If they are close to each other could you use a piece of 1/16" plate formed for curvature? That would be aesthetically pleasing with a nice heli arc bead while adding full coverage and rigidity.

 

[JetManiac]

JB weld is good for a temporary repair, but have them welded properly for a long lasting repair. Also if power coating chamber, then welding is necessary.

 

[Christian_83]

I'm worried to weld because, of the pitting around the holes, even with my Tig I'd imagine I would still be chasing a bit! My thought on the powder coating (I have the means to do it in house) is, I ride Stunt Bikes aswell and with those I've cut and re-built custom tanks with a bowl shaped top for my to sit in. When doing so even the best welder will end up with a pin hole or 2 95% of the time! Plus you loose the factory sealer on the inside that protects from rust, the fix is an epoxy tank sealer that's fuel and solvent safe that seals the pinholes and protects the new metal and exposed existing. This sealer has a composition very similar to powder coating so my thought was, with doing a 2 coat of powdercoating it should surely fill the holes (now after some feedback though I think I'd definitely JB Weld first) but my worry is if it would effect the function of the chamber at all? Like engine builders generally steer against powder coating cylinder blocks because, it then doesn't allow the cylinders to disperse the heat as they're intended to and creates and unstable environment for the ignition process. Just not sure if it would do something similar to this, powdercoating a chamber??

Sounds like you already made your mind with how you wanna go about this.
I dont know how long you have been into jetsking, but the more you have experienced and seen, you dont wanna shortcut a issue like this.
No doubt that i would weld that exhaust chamber or ditch it. I would not run it pinholes, jbwelded, epoxy coated or powdercoated.
Just takes one tiny hole, you cant see to make you chase your tail for way to long.

 

[CPluff617]

JB weld is good for a temporary repair, but have them welded properly for a long lasting repair. Also if power coating chamber, then welding is necessary.

Yea that was another one of my worries is I thought JB was only good for around 200-230°f (I may be a little off but I know that's atleast close). The Powdercoat that I currently have, it's flash point starts at 200 so your really kinda walking the line there! So close that I would be worried of at the very least weakening the JB uk? I wish I had some of the Devcon left over from epoxying my cases!! A little bit of that stuff would have been GREAT!! With how much it costs though I'd be better off selling this chamber for cheap and buying a new one than buying a new pint of that haha.

 

[CPluff617]

Sounds like you already made your mind with how you wanna go about this.
I dont know how long you have been into jetsking, but the more you have experienced and seen, you dont wanna shortcut a issue like this.
No doubt that i would weld that exhaust chamber or ditch it. I would not run it pinholes, jbwelded, epoxy coated or powdercoated.
Just takes one tiny hole, you cant see to make you chase your tail for way to long.

No, yes I think if I dont ditch it I am going to have to weld it to insure that it doesnt just pop back up, and just be ok with the fact that it's not going to be pretty! But atleast it's on the bottom where nobody will see!! I would still like to powder coat the chamber though simply for aesthetics, does anybody, or do you happen to have any experience with that?

 

[restosud]

weld the pipe already and sleep well at night.do it right for once in your life...

 

[CPluff617]

weld the pipe already and sleep well at night.do it right for once in your life...

That's a pretty bold comment to make about somebody you know nothing about and have never even met before!

 

[CPluff617]

Weld repair, if not use:

View attachment 384648

https://www.alvinproducts.com/Product-Line/aT/View/ProductID/6/Hi-Temp-Lab-metal

That seems very similar to the Devcon aluminum liquid I use on cases, stuff works great but it's a little pricey. I plan on trying to tig weld it next weekend I'll post up some before and after pics.

 

[Big Kahuna]

That's a pretty bold comment to make about somebody you know nothing about and have never even met before!

it's just a saying.

 

[TheBuzzard]

if it were my chamber, i'd clean the holes with paint thinner and use some rtv gasket maker.
its easy to remove, clean and apply more if it need be. fast easy hillbilly fix

 

[Vumad]

Buy another one in better condition and sell it to someone else with a full disclaimer.

 

[te4250]

Just weld it, my pipe had a couple holes and some decent corrosion around them, really wasn't a big deal, run the torch over the area at like 30 amps and 95% electrode positive first and wire brush again if you want, common practice on poopty corroded aluminum. I don't think I even did that on my pipe, hammer down and pump rod call it a day. while your there if you pipe rubs on your motor mount drop a couple of beads to give it some extra thickness there.