Expansion Chamber and copper pipe header

Its called 'QuickSteel' and is manufactured by a U.S. brand called CarGo. Comes in a small tube. Its pretty amazing stuff. comes as a log of putty with two layers which you kneed together then it sets in 15 minutes. It doesn't seem like it will work at first becuase it is tacky and doesnt stick very well while it is soft but as it hardens it just goes like steel. It doesn't seem to be too brittle and you can machine and sand it as well. It handles fuel exposure too so would probably be good for plugging carby jets before re-drilling. I think this stuff is perfect for muffler modifications.

Got insulated gloves?
You will soon know why.

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Insulated gloves? If it doesn't hold no big deal I will just pay some tradesman and exorbitant amount to braze the pipes sealed. I am confident that it will hold based on my tests with the QuickSteel. It seems to be remarkably resilient.

I am going to mount the pipe and header to the bike very securely using a combination of hose clamps tie-wire and the Quick Steel. If it does work then I my unorthodox method will be able to be used by everyone else on this forum who lacks access to the necessary tools.

Wish me luck!

Here is a better photo of the putty and one of the joints.

Attached Thumbnails

 

Hi everyone
The easiest way i found to increse power and a little more sound was to take apart the muffler and drill a couple of 7mm holes into the long inner pipe.....drill them about 25 mm from the cap end
Replace...and have a go

QuickSteel didn't take the heat. Plan B: Permatex products, these are rated at 2000 degrees F! (1000 degrees C). The setup worked tho, lots of power and a cool sound.

Where in Aus are you? I could weld that up for you in no time.
I dont know of any product that will take exhaust heat. Don't waste your cash.

Even if you find a bonding product that will take the heat, the vibration will get it. Plus the metal will expand and contract as it heats and cools. The bonding product will not expand and contract at the same rate as the metal. So it will become "mechanically unbonded" just from the heating and cooling cycles................................

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Hi everyone, havn't been online for a while....

Yeah the permatex stuff didnt work. I think it reacted with the copper cos it went all bubbly.

Thanks for the offer Scotty. I see you are in Melbourne. I am up in Byron Bay but I am based in Melbourne and should be back end of the year. We should catch up when I get back down mate! I rode these bikes for 6 years all over the city.

In the meantime, the bearing on bucking bar on the piston broke and sent little roller steel rods through the engine one of which was sucked into the combustion chamber and ruined it!

New engine on order plus I have met a bloke who can weld me up a header pipe for the expansion chamber.

Pictures posted soon

Its a small world , my brother lives in Byron Bay, he just built a house there. His name is Ron Robinson. He moved there from Sydney. He is a surfer though not a MB'er LOL.........