The never ending engine thread, East-West - Page 437 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 12-22-2013, 10:46 AM   #4361
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Re: The never ending engine thread, East-West


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Anyone know the thickness of aluminum headers?
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Old 12-22-2013, 10:48 AM   #4362
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Re: The never ending engine thread, East-West

Jeff be a little more specific please I could measure what I have.
Your headers are stainless. All mine are to.
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Old 12-22-2013, 12:42 PM   #4363
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Re: The never ending engine thread, East-West

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Originally Posted by Dale Hunter View Post
Jeff be a little more specific please I could measure what I have.
Your headers are stainless. All mine are to.
-Dale-

Or call.
Ok I will try it again.

Does anyone have a set of aluminium headers for a 50-150cc gas engine?
What is the thickness of the aluminium headers?
I have stainless headers but I am assuming aluminium headers will be thicker. Maybe not. I can bend aluminium tube but it will take more effort the thinner it is.
My Plan is to weld a set of headers and cans together. No couplers. No leaks or movement.
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Old 12-22-2013, 12:56 PM   #4364
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Re: The never ending engine thread, East-West

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Originally Posted by BansheeBoy View Post
Ok I will try it again.

Does anyone have a set of aluminium headers for a 50-150cc gas engine?
What is the thickness of the aluminium headers?
I have stainless headers but I am assuming aluminium headers will be thicker. Maybe not. I can bend aluminium tube but it will take more effort the thinner it is.
My Plan is to weld a set of headers and cans together. No couplers. No leaks or movement.
That sounds a bit extreme, but will be a very solid setup!!
I don't know if you have tried this already. I apply header gasket sealant around the can and header pipe and slip on the Teflon coupler and clamps. I then put a small machine screw through the "U" shape opening in the spring clamp, Teflon and into the pipe and can. I have done this for 2 years now with no movement of the can or leaks.
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Old 12-22-2013, 01:09 PM   #4365
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Re: The never ending engine thread, East-West

Now, I am following where your headed. No aluminum headers around here. I'm thinking you may need the equivalent of the dump tubes on a wrap around muffler. A good one, Canadian made.

I can caliper mine if you like.

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Old 12-22-2013, 01:50 PM   #4366
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Re: The never ending engine thread, East-West

I don't have the header I need for my pilot yak. But I do have the equipment to make one.

Good point Dale I have a good Canadian muffler to check the thickness.
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Old 12-22-2013, 02:04 PM   #4367
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Re: The never ending engine thread, East-West

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That sounds a bit extreme, but will be a very solid setup!!
I don't know if you have tried this already. I apply header gasket sealant around the can and header pipe and slip on the Teflon coupler and clamps. I then put a small machine screw through the "U" shape opening in the spring clamp, Teflon and into the pipe and can. I have done this for 2 years now with no movement of the can or leaks.
I use the same method with great success.
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Old 12-22-2013, 02:29 PM   #4368
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Re: The never ending engine thread, East-West

Jeff.. I can measure in a few days but AL headers are about 1/16" thick...At least 5 times thicker than SS. They are usually a bit heavier than SS.

The problem with AL, is fatigue / cracking. I've seen a few pairs last quite a while, but most crack in no time because AL will fatigue over time regardless of the stress.
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Old 12-22-2013, 03:46 PM   #4369
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Re: The never ending engine thread, East-West

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I agree Trevor...as if he was standing outside in it!!

Been busy with a high stress project...will be back as good as new....soon!!!
Actually I was, I work outside.
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Old 12-22-2013, 03:48 PM   #4370
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Re: The never ending engine thread, East-West

Jeff I had a set when I had my 3W 275. I forget how thick they were. Give Gerhard a call at Aircraft International and I am sure he can look at a set for you and measure them.
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