How do you seal your expansion chamber - Pocket Bike Forum - Mini Bikes
 
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post #1 of 10 (permalink) Old 4 Weeks Ago Thread Starter
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How do you seal your expansion chamber

Hi

I'm looking for ideas on sealing the expansion chamber on my C1 motor. It has a pipe off a different motor adapted to it, theres a slip joint just past the header pipe.

20190811_114035_1565682737155.jpg

20190808_095907_1565682882963.jpg

What's the best idea here to seal it? I haven't run it yet...but it's a lose fit and I already know it'll leak here and cover my brakes in gunk!

Considering just welding it tight?
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post #2 of 10 (permalink) Old 4 Weeks Ago Thread Starter
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This jetpro pipe has a silicone type joiner, something like this would be perfect!

Last edited by Kimjon; 4 Weeks Ago at 05:14 PM.
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post #3 of 10 (permalink) Old 4 Weeks Ago
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can you just run a thick bead of orange RTV all the way around shove it together?

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post #4 of 10 (permalink) Old 4 Weeks Ago
Re: How do you seal your expansion chamber

I cut alum strips off a soda can, wrap the pipe till the joint is tight, and run a bead of Permatex 750 degrees high temp silicone around the outside. Also, inside the cyld exh tube should be a rubber O ring to seal the header.
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Last edited by EPR; 4 Weeks Ago at 01:02 PM.
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post #5 of 10 (permalink) Old 4 Weeks Ago
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You can also use Teflon tape, what gas plumbing installers take
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post #6 of 10 (permalink) Old 4 Weeks Ago Thread Starter
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Thanks, I'll go to a parts store today and see what they have?
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post #7 of 10 (permalink) Old 3 Weeks Ago Thread Starter
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Picked up some high temp rtv and gave it a generous amount. I'll let it cure for 24hrs...then give it a go.
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post #8 of 10 (permalink) Old 3 Weeks Ago
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Re: How do you seal your expansion chamber

Seeings the exhaust goes with the vehicle I simply weld them together....
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post #9 of 10 (permalink) Old 3 Weeks Ago
Re: How do you seal your expansion chamber

Think CAM2 is right on this one, sounds like the best option to me. Its split there for the B1/C1 frame so you can get the belly out of the frame.

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post #10 of 10 (permalink) Old 3 Weeks Ago Thread Starter
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Quote:
Originally Posted by CAM2 View Post
Seeings the exhaust goes with the vehicle I simply weld them together....
Quote:
Originally Posted by EPR View Post
Think CAM2 is right on this one, sounds like the best option to me. Its split there for the B1/C1 frame so you can get the belly out of the frame.
Probably should of just welded it, but for now its glued together with RTV silicone. It's working for now...but if it fails, I'll weld it.

Thanks for your replies.
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